Relevant bibliographies by topics / Pulsed electro deposition

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Pulsed electro deposition'

Author: Grafiati
Published: 4 June 2021
Last updated: 15 February 2022

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Pulsed electro deposition.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Journal articles on the topic "Pulsed electro deposition"

1

Yilmaz, S., R. Gerhard-Multhaupt, W. A. Bonner, D. M. Hwang, A. Inam, J. A. Martinez, T. S. Ravi, et al. "Electro-optic potassium-tantalate-niobate films prepared by pulsed laser deposition from segmented pellets." Journal of Materials Research 9, no. 5 (May 1994): 1272–79. http://dx.doi.org/10.1557/jmr.1994.1272.

Full text
Abstract:
Thin films of potassium tantalate niobate (KTN) were prepared by means of pulsed excimer-laser deposition and investigated with a number of analytical techniques, including electrical and electro-optical measurements. For applications in longitudinal electro-optic modulators, a transparent electrode is required between substrate and electro-optic layers. Suitable electrode materials, which at the same time permit epitaxial growth of KTN, were identified and prepared. The resulting layered samples were not only of good epitaxial and optical quality, but also exhibited the expected maximum of the longitudinal electro-optic effect at temperatures between the phase transitions from cubic to tetragonal and from tetragonal to orthorhombic. However, the maximum achievable electro-optic phase shift was found to be limited to roughly τ/100 for KTN films in the thickness range around 1 μm. Therefore, much thicker films are probably necessary for most practical applications, which requires significant improvements in the long-term stability and homogeneity of the deposition process.
APA, Harvard, Vancouver, ISO, and other styles
2

Wang, Yan, Wen Ge, Qian Yang, and Wen Cheng. "Corrosion Resistance of Reverse Pulsed Electrodeposition Nano-Nickel Coating." Applied Mechanics and Materials 105-107 (September 2011): 1666–70. http://dx.doi.org/10.4028/www.scientific.net/amm.105-107.1666.

Full text
Abstract:
With the purpose of decorative bright nickel plating process, nano-nickel and ordinary bright nickel coatings were prepared by applying the electro-deposition method with DC and PRC respectively. The grain sizes, organizational structures and surface morphologies of samples were characterizated by X-ray diffraction(XRD) and scanning electron microscopy (SEM) analysis. The corrosion resistance of the samples were determined by immersion corrosion test, salt spray corrosion test and electrochemical methods. The results showed that the corrosion resistance of reverse pulsed electrodeposition nano-nickel coating is superior to the DC electrodeposition nickel coating.
APA, Harvard, Vancouver, ISO, and other styles
3

Schubert, J., M. Siegert, M. Fardmanesh, W. Zander, M. Prömpers, Ch Buchal, Judit Lisoni, and C. H. Lei. "Superconducting and electro-optical thin films prepared by pulsed laser deposition technique." Applied Surface Science 168, no. 1-4 (December 2000): 208–14. http://dx.doi.org/10.1016/s0169-4332(00)00599-7.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Yılmaz, M. S., E. Atar, O. Şahin, and E. S. Kayalı. "Improving the Surface Properties of Cp-Ti by Pulsed Electro-Spark Deposition." Acta Physica Polonica A 125, no. 2 (January 2014): 593–96. http://dx.doi.org/10.12693/aphyspola.125.593.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Schubert, M., N. Ashkenov, T. Hofmann, M. Lorenz, H. Hochmuth, H. v. Wenckstern, M. Grundmann, and G. Wagner. "Electro-optical properties of ZnO-BaTiO3-ZnO heterostructures grown by pulsed laser deposition." Annalen der Physik 13, no. 12 (January 29, 2004): 61–62. http://dx.doi.org/10.1002/andp.200310047.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Tian, H. Y., D. Y. Wang, X. Y. Zhou, Y. Wang, H. L. W. Chan, and C. L. Choy. "Large quasi-linear electro-optical response of BaZr0.75Hf0.25O3thin films by pulsed laser deposition." physica status solidi (a) 202, no. 6 (May 2005): R63—R65. http://dx.doi.org/10.1002/pssa.200510017.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Gupta, Surbhi, Ayushi Paliwal, Vinay Gupta, and Monika Tomar. "Dynamically tuneable PLD grown SBN75 thin film based Electro optic modulator." MRS Advances 4, no. 41-42 (2019): 2265–69. http://dx.doi.org/10.1557/adv.2019.271.

Full text
Abstract:
Abstract:Present work reports the growth of Strontium Barium Niobate (Sr0.75 Ba0.25 Nb2 O6, SBN 75)thin films using Pulsed laser deposition (PLD) technique for possible realization of electrically tunable modulators. Structural and optical properties of grown SBN75 thin film were investigated indicating the growth of high quality polycrystalline and optically transparent. Prism coupling technique was further utilized for coupling the incident laser light λ = 633 nm with the grown SBN75 thin film. The guided EM radiation could be further coupled with the electric field for the realization of EO modulator.
APA, Harvard, Vancouver, ISO, and other styles
8

Kilburger, S., R. Chety, E. Millon, Ph Di Bin, C. Di Bin, A. Boulle, and R. Guinebretière. "Growth of LiNbO3 thin films on sapphire by pulsed-laser deposition for electro-optic modulators." Applied Surface Science 253, no. 19 (July 2007): 8263–67. http://dx.doi.org/10.1016/j.apsusc.2007.02.112.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Venkatesh, C., N. Sundara Moorthy, R. Venkatesan, and V. Aswinprasad. "Optimization of Process Parameters of Pulsed Electro Deposition Technique for Nanocrystalline Nickel Coating Using Gray Relational Analysis (GRA)." International Journal of Nanoscience 17, no. 01n02 (October 12, 2017): 1760007. http://dx.doi.org/10.1142/s0219581x17600079.

Full text
Abstract:
The moving parts of any mechanism and machine parts are always subjected to a significant wear due to the development of friction. It is an utmost important aspect to address the wear problems in present environment. But the complexity goes on increasing to replace the worn out parts if they are very precise. Technology advancement in surface engineering ensures the minimum surface wear with the introduction of polycrystalline nano nickel coating. The enhanced tribological property of the nano nickel coating was achieved by the development of grain size and hardness of the surface. In this study, it has been decided to focus on the optimized parameters of the pulsed electro deposition to develop such a coating. Taguchi’s method coupled gray relational analysis was employed by considering the pulse frequency, average current density and duty cycle as the chief process parameters. The grain size and hardness were considered as responses. Totally, nine experiments were conducted as per L9 design of experiment. Additionally, response graph method has been applied to determine the most significant parameter to influence both the responses. In order to improve the degree of validation, confirmation test and predicted gray grade were carried out with the optimized parameters. It has been observed that there was significant improvement in gray grade for the optimal parameters.
APA, Harvard, Vancouver, ISO, and other styles
10

Todoran, Daniela, Radu Todoran, Zsolt Szakács, and Eugen Anitas. "Electrical Conductivity and Optical Properties of Pulsed Laser Deposited LaNi5 Nanoscale Films." Materials 11, no. 8 (August 19, 2018): 1475. http://dx.doi.org/10.3390/ma11081475.

Full text
Abstract:
This work presents pulsed laser deposition as a method to obtain unoxidized LaNi5 nanoscale films and describes their temperature and thickness dependent electrical conductivity and the spectral dispersions of some optical properties. AB5-type rare earth element (REE)-nickel compounds are currently studied from both theoretical and practical points of view. Special challenges are posed during the preparation of these nanomaterials, which can be overcome using finely tuned parameters in a preparation process that always involves the use of high energies. Film deposition was made by laser—induced vaporization, with short and modulated impulses and electro–optical tuning of the quality factor, mainly on glass and one SiO2 substrate. Deposition geometry dependent linear thickness increase, between 1.5–2.5 nm per laser burst, was achieved. Film structures and phase compositions were determined using XRD and discussed in comparison with films obtained by similar deposition procedures. Temperature and scale dependent properties were determined by studying electrical conductivity and optical properties. Electrical conductivity was measured using the four-probe method. The observed semiconductor-like conductivity for film thicknesses up to 110 nm can be explained by thermal activation of electrons followed by inter-insular hopping or quantum tunneling, which, on the other hand, modulates the material’s native metallic conductance. Films with thicknesses above this value can be considered essentially metallic and bulk-like. The spectral behaviors of the refractive index and absorption coefficient were deduced from differential reflectance spectroscopy data acquired on a broad ultraviolet, visible, near- and mid-infrared (UV-VIS-NIR-MIR) domain, processed using the Kramers-Krönig formalism. Their study led to the identification of the allowed interband transitions. Electronic behavior in the energy bands near the Fermi level and in the surface and interface-states was described, discussing the differences between experimental data and the classical free-electron theoretical model applied for the bulk intermetallic alloy, in correlation with theoretical optical properties or experimental X-ray photoelectron spectroscopy (XPS) results from references. However, the dielectric-like shape of the reflectance of the thinnest film was in accordance with the Lorentz–Drude model.
APA, Harvard, Vancouver, ISO, and other styles
More sources

Dissertations / Theses on the topic "Pulsed electro deposition"

1

Alshekhli, Omar. "PULSED ELECTRON DEPOSITION AND CHARACTERIZATION OF NANOCRYSTALLINE DIAMOND THIN FILMS." Thesis, Laurentian University of Sudbury, 2013. https://zone.biblio.laurentian.ca/dspace/handle/10219/2078.

Full text
Abstract:
Diamond is widely known for its extraordinary properties, such as high hardness, thermal conductivity, electron mobility, energy bandgap and durability making it a very attractive material for many applications. Synthetic diamonds retain most of the attractive properties of natural diamond. Among the types of synthetic diamonds, nanocrystalline diamond (NCD) is being developed for electrical, tribological, optical, and biomedical applications. In this research work, NCD films were grown by the pulsed electron beam ablation (PEBA) method at different process conditions such as accelerating voltage, pulse repetition rate, substrate material and temperature. PEBA is a relatively novel deposition technique, which has been developed to provide researchers with a new means of producing films of equal or better quality than more conventional methods such as Pulsed Laser Deposition, Sputtering, and Cathodic Vacuum Arc. The deposition process parameters have been defined by estimating the temperature and pressure of the plasma particles upon impact with the substrates, and comparing the data with the carbon phase diagram. Film thickness was measured by visible reflectance spectroscopy technique and was in the range of 40 – 230 nm. The nature of chemical bonding, namely, the ratio (sp3/sp3+sp2) and nanocrystallinity percentage were estimated using visible Raman spectroscopy technique. The films prepared from the ablation of a highly ordered pyrolytic graphite (HOPG) target on different substrates consisted mainly of nanocrystalline diamond material in association with a diamond-like carbon phase. The micro-structural properties and surface morphology of the films were studied by atomic force microscopy (AFM) and scanning electron microscopy (SEM). The mechanical properties of the NCD films were evaluated by nano-indentation.
APA, Harvard, Vancouver, ISO, and other styles
2

Hyde, Robert H. "Hollow-electrode pulsed plasma deposition of titanium and carbon thin films." [Tampa, Fla] : University of South Florida, 2006. http://purl.fcla.edu/usf/dc/et/SFE0001856.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Jenderka, Marcus. "Pulsed Laser Deposition of Iridate and YBiO3 Thin Films." Doctoral thesis, Universitätsbibliothek Leipzig, 2017. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-219334.

Full text
Abstract:
Die vorliegende Arbeit befasst sich mit dem Dünnfilmwachstum der ternären Oxide Na2IrO3, Li2IrO3, Y2Ir2O7 und YBiO3. All diesen oxidischen Materialien ist gemein, dass sie Verwirklichungen sogenannter Topologischer Isolatoren oder Spin-Flüssigkeiten sein könnten. Diese neuartigen Materiezustände versprechen eine zukünftige Anwendung in der Quantencomputation, in magnetischen Speichern und in elektrischen Geräten mit geringer Leistungsaufnahme. Die Herstellung der hier gezeigten Dünnfilme ist daher ein erster Schritt zur Umsetzung dieser Anwendungen in der Zukunft. Alle Dünnfilme werden mittels gepulster Laserplasmaabscheidung auf verschiedenen einkristallinen Substraten hergestellt. Die strukturellen, optischen und elektrischen Eigenschaften der Filme werden mittels etablierter experimenteller Verfahren wie Röntgenbeugung, spektroskopischer Ellipsometrie und elektrischenWiderstandsmessungen untersucht. Die strukturellen Eigenschaften von erstmalig in der Masterarbeit des Authors verwirklichten Na2IrO3-Dünnfilmen können durch Abscheidung einer ZnO-Zwischenschicht deutlich verbessert werden. Einkristalline Li2IrO3-Dünnfilme mit einer definierten Kristallausrichtung werden erstmalig hergestellt. Die Messung der dielektrischen Funktion gibt Einblick in elektronische Anregungen, die gut vergleichbar mit Li2IrO3-Einkristallen und verwandten Iridaten sind. Des Weiteren wird aus den Daten eine optische Energielücke von ungefähr 300 meV bestimmt. In Y2Ir2O7-Dünnfilmen wird eine mögliche (111)-Vorzugsorientierung in Wachstumsrichtung gefunden. Im Vergleich mit der chemischen Lösungsabscheidung zeigen die hier mittels gepulster Laserplasmaabscheidung hergestellten YBiO3-Dünnfilme eine definierte, biaxiale Kristallausrichtung in der Wachstumsebene bei einer deutlich höheren Schichtdicke. Über die gemessene dielektrische Funktion können eine direkte und indirekte Bandlücke bestimmt werden. Deren Größe gibt eine notwendige experimentelle Rückmeldung an theoretische Berechnungen der elektronischen Bandstruktur von YBiO3, welche zur Vorhersage der oben erwähnten, neuartigen Materiezuständen verwendet werden. Nach einer Einleitung und Motivation dieser Arbeit gibt das zweite Kapitel einen Überblick über den gegenwärtigen Forschungsstand der hier untersuchten Materialien. Die folgenden zwei Kapitel beschreiben die Probenherstellung und die verwendeten experimentellen Untersuchungsmethoden. Anschließend werden für jedes Material einzeln die experimentellen Ergebnisse dieser Arbeit diskutiert. Die Arbeit schließt mit einer Zusammenfassung und einem Ausblick
The present thesis reports on the thin film growth of ternary oxides Na2IrO3, Li2IrO3, Y2Ir2O7 and YBiO3. All of these oxides are candidate materials for the so-called topological insulator and spin liquid, respectively. These states of matter promise future application in quantum computation, and in magnetic memory and low-power electronic devices. The realization of the thin films presented here, thus represents a first step towards these future device applications. All thin films are prepared by means of pulsed laser deposition on various single-crystalline substrates. Their structural, optical and electronic properties are investigated with established experimental methods such as X-ray diffraction, spectroscopic ellipsometry and resistivity measurements. The structural properties of Na2IrO3 thin films, that were previously realized in the author’s M. Sc. thesis for the first time, are improved significantly by deposition of an intermediate ZnO layer. Single-crystalline Li2IrO3 thin films are grown for the first time and exhibit a defined crystal orientation. Measurement of the dielectric function gives insight into electronic excitations that compare well with single crystal samples and related iridates. From the data, an optical energy gap of about 300 meV is obtained. For Y2Ir2O7 thin films, a possible (111) out-of-plane preferential crystal orientation is obtained. Compared to chemical solution deposition, the pulsed laser-deposited YBiO3 thin films presented here exhibit a biaxial in-plane crystal orientation up to a significantly larger film thickness. From the measured dielectric function, a direct and indirect band gap energy is determined. Their magnitude provides necessary experimental feedback for theoretical calculations of the electronic structure of YBiO3, which are used in the prediction of the novel states of matter mentioned above. After the introduction and motivation of this thesis, the second chapter reviews the current state of the science of the studied thin film materials. The following two chapters introduce the sample preparation and the employed experimental methods, respectively. Subsequently, the experimental results of this thesis are discussed for each material individually. The thesis concludes with a summary and an outlook
APA, Harvard, Vancouver, ISO, and other styles
4

Waller, Gordon Henry. "Template Directed Growth of Nb doped SrTiO3 using Pulsed Laser Deposition." Thesis, Virginia Tech, 2011. http://hdl.handle.net/10919/32723.

Full text
Abstract:
Oxide materials display a wide range of physical properties. Recently, doped complex oxides have drawn considerable attention for various applications including thermoelectrics. Doped complex oxide materials have high Seebeck coefficients (S) and electrical conductivities (o) comparable to other doped semiconductors but low thermoelectric figure of merit ZT values due to their poor thermal conductivities. For example, niobium doped strontium titanate (SrNbxTi1-xO3 or simply Nb:STO) has a power factor comparable to that of bismuth telluride. Semiconductor nanostructures have demonstrated a decrease in thermal conductivity () resulting in an increase in the thermoelectric figure of merit (ZT). Nanostructures of doped oxides like niobium doped strontium titanate, may also lead to decreased and a corresponding increase in ZT. The major impediment to nanostructured oxide thermoelectric materials is the lack of suitable fabrication techniques for testing and eventual use. Electron Beam Lithography(EBL) was used to pattern poly-methyl-methacrylate (PMMA) resists on undoped single crystalline SrTiO3 (STO) substrates which were then filled with Nb:STO using Pulsed Laser Deposition (PLD) at room temperature. This technique produced nanowires and nanodots with critical dimensions below 100 nm, and a yield of approximately 95%. In addition to scanning electron microscopy and atomic force microscopy morphological studies of the patterned oxide, thin film analogues were used to study composition, crystallinity and electrical conductivity of the material in response to a post deposition heat treatment. Since the thin films were grown under similar experimental parameters as the oxide nanostructres, the patterned oxides are believed to be stoichiometric and highly crystalline. The study found that using a combination of EBL and PLD, it is possible to produce highly crystalline, doped complex oxide nanostructures with excellent control over morphology. Furthermore, the technique is applicable to nearly all materials and provides the capability of patterning doped oxide materials without the requirement of etching or multiple lithography steps makes this approach especially interesting for future fundamental materials research and novel device fabrication.
Master of Science
APA, Harvard, Vancouver, ISO, and other styles
5

Nsengiyumva, Schadrack. "Formation and characterization of pulsed laser ablated magnetoresistive material." Thesis, Stellenbosch : Stellenbosch University, 2002. http://hdl.handle.net/10019.1/52852.

Full text
Abstract:
Thesis (MSc)--Stellenbosch University, 2002.
ENGLISH ABSTRACT: In this investigation the formation of thin film manganites and their electrical characteristics is studied. In order to see the effect of oxidation states on magneto-resistivity, 80% of Mn is replaced by Fe. Pulsed laser deposition (3 J/cm2), carried out in oxygen partial pressures ranging from 0.01 mbar to 1.00 mbar was used to fabricate the thin films from two target compositions, namely La2CaMn2.94Feo.0609 and La2CaMno.6Fe2.409. Films were deposited on Si< 100 >, MgO< 100 >, SrTi03< 100 > and LaAl03< 100 > single crystal substrates. Samples were characterized by RBS, AFM, SEM, and XRD. Electrical measurements were also carried out. One of the main characterization techniques in this investigation is Rutherford Backscattering Spectrometry (RBS). It has been shown that RBS is a very powerful characterization technique when used in conjunction with the RUMP simulation program. The effect of various parameters can be determined beforehand by RUMP simulation of the thin film structures to be investigated. Simulation shows that RBS is an excellent characterization tool for determining film thickness and stoichiometry. The role of oxygen uptake in La2CaMn3_xFexOg was investigated as the oxidation states of elements in manganite materials have a large effect on their magnetoresistive properties. The height of the La signal can be used as a measure of the oxygen content. RBS spectra of films deposited on single crystal silicon substrates at different ambient pressures show that the fit between simulated and measured RBS spectra improves with higher oxygen pressures, thereby indicating better quality manganite material. The RBS spectra also show that the films have good stoichiometry. Atomic force microscopy was used to determine the roughness of the thin films. The annealed film (average roughness 4.5 nm) shows a surface smoother than the non-annealed film (average roughness 5.3 nm). SEM measurements show that in the case of samples having a high Fe content, the crystallite size varies between about 0.04 11m and 0.10 11m, while for samples with high manganese content, the crystallinity varies between 0.03 jJ,m and 0.06jLm. Manganites were analyzed using Bragg-Brentano (28) X-ray diffraction. Measurements show that manganite films cannot be grown epitaxially on Si< 100 > and MgO< 100 > single crystals due to a large lattice mismatch. In the case of SrTi03 and LaAl03 several reflections and sharp peaks from the film can be seen, indicating reasonable epitaxial growth. SEM measurements of the samples however show polycrystallinity. Complete epitaxy has thus not occurred, but many grains have an epitaxial orientation. Resistance versus temperature (the room temperature to about 100 K) in zero magnetic field was measured for a La2CaMno.06Fe2.409 thin film and maximum resistance corresponding to about 108 K was found. At higher temperatures the resistance decreases as temperature increases. The manganite thin film therefore shows semiconductor behaviour. Resistance measurements carried out at different magnetic fields (0 - 1 T) show a small positive magnetoresistance of 0.83 %. Usually the magnetoresistance phenomenon is measured at higher magnetic fields and this could be the reason for our low value as well as the fact that the iron content could be too high.
AFRIKAANSE OPSOMMING: In hierdie ondersoek is die formasie en karakterisering van dunlagie manganiete ondersoek. Om die effek van oksidasie-toestand op magnetoresistiwiteit te bepaal, is 80% van die Mn verplaas deur Fe. Pulseerde laser deposissie(3 J/cm2), is uitgevoer by 'n parsiële suurstof druk tussen 0.10 en 1.00 mbar deur gebruik te maak van La2Ca Mn2.94Feo.o609 en La2CaMno.6Fe2.409 teiken skywe. Dunlagies was gedeponeer op Si, MgO, SrTi03<100> en LaAl03<100> enkelkristal substrate. Die dunlagies is daarna ge-karakteriseer met behulp van Rutherford terugverstrooing (RBS), atoom krag mikroskopie(AFM), skandeer elektronmikroskopie (SEM) en xstraal diffraksie(XRD). Elektriese metings is ook uitgevoer. Een van die hoof tegnieke wat gebruik is in hierdie ondersoek is Rutherford terugverstrooing (RBS) van 2 Mev alfa-deeltjies. In hierdie navorsing is aangetoon dat RBS saam met spektra simulasie(RUMP), 'n besondere kragtige metode is om die stoichiometrie en dikte van manganiet lagies te bepaal. Die rol van die opname van suurstof in die dunlagies was ondersoek, aangesien die oksidasie toestand van manganiet lagies 'n groot effek het op hulle magnetoresistiwiteit. Die hoogte van die La sein is gebruik as 'n maatstaf van suurstof inhoud. RBS spektra van dunlagies gevorm op enkelkristal silikon substrate by verskillende parsiële suurstof drukke wys dat die passing tussen gemete en gesimuleerde spektra verbeter by hoër suurstof drukke, wat beter kwaliteit manganiet materiaal aandui. Die RBS spektra het ook aangetoon dat die stoichiometrie van die lagies uitstekend is. Atoom krag mikroskopie(AFM) is gebruik om die grofheid van die oppervlaktes van die dunlagies te bepaal. Lagies wat by 750 grade celsius uitgegloei is ( gemiddelde gladheid van 4.5 nm) was gladder as films wat nie na ablasie uitgegloei is nie (gemiddelde gladheid van 5.3 nm). SEM metings toon ook dat dunlagies met 'n hoë Fe inhoud 'n kristalliet deursnit het van 0.04 tot 0.10 mikrometer en die met 'n hoë mangaan inhoud 'n poli-kristalliniteit het van tussen 0.03 en 0.06 mikrometer het. Bragg-Brentano(twee-theta) X-straal diffraksie meting wys dat manganiet films nie epitaksieël op Si en MgO enkelkristal substrate gevorm kan word nie, weens 'n groot verskil in die kristal-rooster parameters. SEM metings van die monsters wys polikristalliniteit. Algehele epitaksie het dus nie plaasgevind nie, maar verskeie kristalliete het 'n epitaksiële orientasie. Weerstand metings is gemaak by temperature so laag as 100 Kelvin vir La2CaMno.o6Fe2.409dunlagies en 'n maksimum weerstand is by 108 Kelvin gevind. By hoër temperature het die weerstand afgeneem soos die temperatuur toeneem, wat halfgeleier gedrag aandui. Weerstand metings by verskillende magneetvelde (0 tot I Tesla) wys 'n klein magnetoresistiwiteits effek van 0.83%. Gewoonlik word magnetoresistiwiteit gemeet by hoë magneet velde (ongeveer 6 Tesla). Dit, sowel as die hoë Fe samestelling van die monsters kan die rede wees vir die lae magnetoresistiwiteit wat waargeneem word.
APA, Harvard, Vancouver, ISO, and other styles
6

Zhang, Hong Bo. "Optical and electrical properties of ZnO thin films prepared by pulsed laser deposition." HKBU Institutional Repository, 2000. http://repository.hkbu.edu.hk/etd_ra/225.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Bowers, Cynthia Thomason. "Transmission Electron Microscopy Analysis of Silicon-Doped Beta-Gallium Oxide Films Grown by Pulsed Laser Deposition." Wright State University / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=wright1580120635333744.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Ibrahim, Noor Baa'yah. "Properties of yttrium iron garnet thin films grown by pulsed laser ablation deposition." Thesis, University of Warwick, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.343112.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Wei, Haoming, Jose Luis Barzola-Quiquia, Chang Yang, Christian Patzig, Thomas Höche, Pablo Esquinazi, Marius Grundmann, and Michael Lorenz. "Charge transfer-induced magnetic exchange bias and electron localization in (111)- and (001)-oriented LaNiO3/LaMnO3 superlattices." American Institute of Physics, 2017. https://ul.qucosa.de/id/qucosa%3A23554.

Full text
Abstract:
High-quality lattice-matched LaNiO3/LaMnO3 superlattices with monolayer terrace structure have been grown on both (111)- and (001)-oriented SrTiO3 substrates by pulsed laser deposition. In contrast to the previously reported experiments, a magnetic exchange bias is observed that reproducibly occurs in both (111)- and (001)-oriented superlattices with the thin single layers of 5 and 7 unit cells, respectively. The exchange bias is theoretically explained by charge transfer-induced magnetic moments at Ni atoms. Furthermore, magnetization data at low temperature suggest two magnetic phases in the superlattices, with Néel temperature around 10 K. Electrical transport measurements reveal a metal-insulator transition with strong localization of electrons in the superlattices with the thin LaNiO3 layers of 4 unit cells, in which the electrical transport is dominated by two-dimensional variable range hopping.
APA, Harvard, Vancouver, ISO, and other styles
10

Souri, Maryam. "ELECTRONIC AND OPTICAL PROPERTIES OF METASTABLE EPITAXIAL THIN FILMS OF LAYERED IRIDATES." UKnowledge, 2018. https://uknowledge.uky.edu/physastron_etds/60.

Full text
Abstract:
The layered iridates such as Sr2IrO4 and Sr3Ir2O7, have attracted substantial attention due to their novel electronic states originating from strong spin-orbit coupling and electron-correlation. Recent studies have revealed the possibilities of novel phases such as topological insulators, Weyl semimetals, and even a potential high-Tc superconducting state with a d-wave gap. However, there are still controversial issues regarding the fundamental electronic structure of these systems: the origin of the insulating gap is disputed as arising either from an antiferromagnetic ordering, i.e. Slater scheme or electron-correlation, i.e. Mott scheme. Moreover, it is a formidable task to unveil the physics of layered iridates due to the limited number of available materials for experimental characterizations. One way to overcome this limit and extend our investigation of the layered iridates is using metastable materials. These materials which are far from their equilibrium state, often have mechanical, electronic, and magnetic properties that different from their thermodynamically stable phases. However, these materials cannot be synthesized using thermodynamic equilibrium processes. One way to synthesize these materials is by using pulsed laser deposition (PLD). PLD is able to generate nonequilibrium material phases through the use of substrate strain and deposition conditions. Using this method, we have synthesized several thermodynamically metastable iridate thin-films and have investigated their electronic and optical properties. Synthesizing and investigating metastable iridates opens a path to expand the tunability further than the ability of the bulk methods. This thesis consists of four studies on metastable layered iridate thin film systems. In the first study, three-dimensional Mott variable-range hopping transport with decreased characteristic temperatures under lattice strain or isovalent doping has been observed in Sr2IrO4 thin films. Application of lattice strain or isovalent doping exerts metastable chemical pressure in the compounds, which changes both the bandwidth and electronic hopping. The variation of the characteristic temperature under lattice strain or isovalent doping implies that the density of states near the Fermi energy is reconstructed. The increased density of states in the Sr2IrO4 thin films with strain and isovalent doping could facilitate a condition to induce unprecedented electronic properties, opening a way for electronic device applications. In the second study, the effects of tuning the bandwidth via chemical pressure (i.e., Ca and Ba doping) on the optical properties of Sr2IrO4 epitaxial thin films has been investigated. Substitution of Sr by Ca and Ba ions exerts metastable chemical pressure in the system, which changes both the bandwidth and electronic hopping. The optical conductivity results of these thin films suggest that the two-peak-like optical conductivity spectra of the layered iridates originates from the overlap between the optically-forbidden spin-orbit exciton and the inter-site optical transitions within the Jeff = ½ band, which is consistent with the results obtained from a multi-orbital Hubbard model calculation. In the third study, thermodynamically metastable Ca2IrO4 thin- films have been synthesized. Since the perovskite structure of Ca2IrO4 is not thermodynamically stable, its bulk crystals do not exist in nature. We have synthesized the layered perovskite phase Ca2IrO4 thin- films from a polycrystalline hexagonal bulk crystal using an epitaxial stabilization technique. The smaller A-site in this compound compared to Sr2IrO4 and Ba2IrO4, increases the octahedral rotation and tilting, which enhance electron-correlation. The enhanced electron-correlation is consistent with the observation of increased gap energy in this compound. This study suggest that the epitaxial stabilization of metastable-phase thin-films can be used effectively for investigating complex-oxide systems. Finally, structural, transport, and optical properties of tensile strained (Sr1-xLax)3Ir2O7 (x = 0, 0.025, 0.05) thin-films have been investigated. While high-Tc superconductivity is predicted in the system, all of the samples are insulating. The insulating behavior of the La-doped Sr3Ir2O7 thin-films is presumably due to disorder-induced localization and ineffective electron-doping of La, which brings to light the intriguing difference between epitaxial thin films and bulk single crystals of the iridates. These studies thoroughly investigate a wide array of novel electronic and optical phenomena via tuning the relative strengths of electron correlation, electronic bandwidth, and spin-orbit coupling using perturbations such as chemical doping, and the stabilization of metastable phases in the layered iridates.
APA, Harvard, Vancouver, ISO, and other styles
More sources

Books on the topic "Pulsed electro deposition"

1

Hong, M. H. Laser applications in nanotechnology. Edited by A. V. Narlikar and Y. Y. Fu. Oxford University Press, 2017. http://dx.doi.org/10.1093/oxfordhb/9780199533060.013.24.

Full text
Abstract:
This article discusses a variety of laser applications in nanotechnology. The laser has proven to be one of many mature and reliable manufacturing tools, with applications in modern industries, from surface cleaning to thin-film deposition. Laser nanoengineering has several advantages over electron-beam and focused ion beam processing. For example, it is a low-cost, high-speed process in air, vacuum or chemical environments and also has the capability to fulfill flexible integration control. This article considers laser nanotechnology in the following areas: pulsed laser ablation for nanomaterials synthesis; laser nanoprocessing to make nanobumps for disk media nanotribology and anneal ultrashort PN junctions; surface nanopatterning with near-field, and light-enhancement effects; and large-area parallel laser nanopatterning by laser interference lithography and laser irradiation through a microlens array. Based on these applications, the article argues that the laser will continue to be one of the highly potential nanoengineering means in next-generation manufacturing.
APA, Harvard, Vancouver, ISO, and other styles

Book chapters on the topic "Pulsed electro deposition"

1

Strikovski, Mikhail D., Jeonggoo Kim, and Solomon H. Kolagani. "Plasma Energetics in Pulsed Laser and Pulsed Electron Deposition." In Springer Handbook of Crystal Growth, 1193–211. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-540-74761-1_35.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Andriesh, A. M., S. A. Malkov, and M. S. Iovu. "Deposition of CuInSe2 thin Films By Pulsed Electron Beam Ablation." In Physics and Applications of Non-Crystalline Semiconductors in Optoelectronics, 452. Dordrecht: Springer Netherlands, 1997. http://dx.doi.org/10.1007/978-94-011-5496-3_35.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Li, Bing, Lushan Jiang, Heng Wang, Zhiwei Weng, and Zhuxin Zhao. "Pulse Electro-deposition of TiB2 onto Graphite from TiO2-B2O3-KF-LiF Melts." In Light Metals 2012, 1373–76. Cham: Springer International Publishing, 2012. http://dx.doi.org/10.1007/978-3-319-48179-1_237.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Dong, Rui, Qun Wang, Li Dong Chen, and Xiao Min Li. "Chemical Solution Deposition Growth of La0.7Ca0.3MnO3 Films and their Electric Pulse Induced Resistance Change Effect." In High-Performance Ceramics III, 473–76. Stafa: Trans Tech Publications Ltd., 2007. http://dx.doi.org/10.4028/0-87849-959-8.473.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Tao, Shaohu, Jianping Peng, Yuezhong Di, Kejia Liu, Kun Zhao, and Naixiang Feng. "Electrochemical Study of Potassium Fluoride in a Cryolite-Aluminum Oxide Molten Salt." In Encyclopedia of Aluminum and Its Alloys. Boca Raton: CRC Press, 2019. http://dx.doi.org/10.1201/9781351045636-140000409.

Full text
Abstract:
Selective and efficient electrochemical methods to characterize aluminum are necessary. Current methods are based on potentiodynamic polarization, recurrent potential double pulses, chronopotentiometry, open-circuit chronopotentiometry, and potentiostatic electrolysis, but have not been used to characterize the deposition of aluminum in Na3AlF6-Al2O3-KF molten salts. The control processes of the formation of aluminum-tungsten inter-metallic compounds, and the deposition of aluminum have been investigated by using steady-state potentiodynamic cathodic polarization curves. The dissolution loss rate of aluminum was determined with an increase in KF concentration by the analysis of recurrent potential double pulses. Using chronopotentiometry, it was confirmed that the deposition potential of aluminum shifted more negative as the KF concentration increased, and a higher KF concentrations induced a higher cathodic overpotential. From open-circuit potential measurements and scanning electron micrographs, it was concluded that aluminum(III) ions react with tungsten substrates to form an aluminum-tungsten compound, and the reaction mechanism of aluminum was determined. These electrochemical methods applied with aluminum electrolysis were accurate, efficient, and reliable.
APA, Harvard, Vancouver, ISO, and other styles
6

Sahu, Anshuman Kumar, and Siba Sankar Mahapatra. "Electrical Discharge Coating by Copper-Tungsten Composite Electrode Prepared by Powder Metallurgy Route." In Soft Computing Techniques and Applications in Mechanical Engineering, 195–224. IGI Global, 2018. http://dx.doi.org/10.4018/978-1-5225-3035-0.ch010.

Full text
Abstract:
Electrical discharge machining (EDM), a thermo-mechanical machining process, is used in producing complicated intrinsic cavity in difficult-to- machine materials with excellent surface finish. One of the major disadvantage of EDM process is the tool wear, which can be used advantageously for coating purpose. Coating is a unique method of EDM process by the use of electrode prepared via powder metallurgy route. Copper and tungsten powders in weight percentage of 30 and 70 respectively are used for the preparation of the tool electrode by varying the PM process parameters like compaction pressure and sintering temperature. The substrate on which coating is made is chosen as AISI 1040 stainless steel with EDM oil as the dielectric fluid. During coating, influence of parameters like discharge current, duty cycle and pulse-on-time on material deposition rate, tool wear rate and radial under deposition are studied. To find out the best parametric combination Grey Relational Analysis method combined with Harmony Search algorithm has been employed.
APA, Harvard, Vancouver, ISO, and other styles
7

Müller, G., M. Konijnenberg, G. Krafft, and C. Schultheiss. "THIN FILM DEPOSITION BY MEANS OF PULSED ELECTRON BEAM ABLATION." In Science and Technology of Thin Films, 89–119. WORLD SCIENTIFIC, 1995. http://dx.doi.org/10.1142/9789814261425_0004.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Mangasa Simanjuntak, Firman, Sridhar Chandrasekaran, Debashis Panda, Aftab Salem, and Themis Prodromakis. "Practical Approach to Induce Analog Switching Behavior in Memristive Devices: Digital-to-Analog Transformation." In Memristors [Working Title]. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.98607.

Full text
Abstract:
The capability of memristor devices to perform weight changes upon electrical pulses mimics the analogous firing mechanism in biological synapses. This capability delivers the potential for neuromorphic computing and pushes renewed interests in fabricating memristor with analog characteristics. Nevertheless, memristors could often exhibit digital switching, either during the set, reset, or both processes that degenerate their synaptic capability, and nanodevice engineers struggle to redesign the device to achieved analog switching. This chapter overviews some important techniques to transform the switching characteristics from digital to analog in valence change and electrochemical metallization types memristors. We cover physical dynamics involving interfacial diffusion, interfacial layer, barrier layer, deposition, and electrode engineering that can induce digital-to-analog switching transformation in memristor devices.
APA, Harvard, Vancouver, ISO, and other styles
9

Pankov, V. V., R. H. Prince, M. Couillard, and G. A. Botton. "Transmission electron microscopy of AIN/TiN superlattice coatings fabricated by pulsed laser deposition." In Microscopy of Semiconducting Materials 2003, 159–62. CRC Press, 2018. http://dx.doi.org/10.1201/9781351074636-37.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

"Minister. At first sight it is an interesting example of a reverse linkage between national and European developments. This book has highlighted a number of occasions when the course of European integration was profoundly influenced, even determined, by national political developments. The deposition of Thatcher was an occasion on which European issues apparently impacted decisively on national politics. However, occasion and cause are not always synonymous and the reality is slightly different. European issues were undoubtedly the occasion for the change of Prime Minister. However, the underlying causes lay in domestic politics – particularly the poll tax fiasco – and a fear amongst Conservative back-benchers that the next general election could be lost if changes were not made. There is little evidence that the replacement of Margaret Thatcher by John Major changed British attitudes towards the Community, soon to become the Union. Differences between leading British government ministers remained and splits over European issues in the Conservative party were to deepen, especially after the 1992 elections. Other European leaders now had to deal with a much weaker British Prime Minister – not necessarily an advantage. Although there is little evidence that the changed external context had much impact on the IGCs and the shape of the Treaty on European Union, the same may not necessarily be true for developments immediately post-Maastricht. The ratification process was more difficult than that for any other treaty. A referendum in Denmark rejected the entire Treaty, a situation only reversed by special concessions and opt outs. President Mitterand called a referendum in France, largely in the hope of boosting his own waning popularity, and came within a whisker of losing. In Britain the ratification process in Parliament was delayed by the growing split in the Conservative party re-inforced by a crisis in the European Monetary System. When Britain had finally joined the exchange rate mechanism in 1990, the pound sterling – which had for some time previously been shadowing the mark – was valued at a high rate which simply could not be sustained. Faced with enormous and uncontrollable speculative movements and unwilling to seek an agreed currency revaluation, Britain simply pulled out of the exchange rate mechanism in September 1992. Thereafter with the Conservative party increasingly adopting the line on Europe which had theoretically cost Thatcher her job, ratification of Maastricht was for some time on a knife edge. This chapter is entitled ‘From Commmunity to Union’. An apparent relaunching of the integration process with the single market initiative promoted another of those relatively brief and infrequent waves of what has." In The Uniting of Europe, 88. Routledge, 2006. http://dx.doi.org/10.4324/9780203131503-18.

Full text
APA, Harvard, Vancouver, ISO, and other styles

Conference papers on the topic "Pulsed electro deposition"

1

Kandyla, M., A. Mellos, and M. Kompitsas. "Hydrogenated amorphous silicon films grown by pulsed laser deposition." In 2013 Conference on Lasers & Electro-Optics Europe & International Quantum Electronics Conference CLEO EUROPE/IQEC. IEEE, 2013. http://dx.doi.org/10.1109/cleoe-iqec.2013.6801594.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Prentice, Jake J., James A. Grant-Jacob, Stephen J. Beecher, David P. Shepherd, Robert W. Eason, and Jacob I. Mackenzie. "Ytterbium-doped mixed sesquioxides grown by pulsed laser deposition." In 2017 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC). IEEE, 2017. http://dx.doi.org/10.1109/cleoe-eqec.2017.8087222.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Chen, X. Y., and Y. F. Lu. "Optical properties of SiO/sub x/ nanostructured films by pulsed-laser deposition." In 2005 Conference on Lasers and Electro-Optics (CLEO). IEEE, 2005. http://dx.doi.org/10.1109/cleo.2005.202261.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

"Growth of KNbO/sub 3/ thin films on MgO by pulsed laser deposition." In Conference on Lasers and Electro-Optics Europe. IEEE, 1994. http://dx.doi.org/10.1109/cleoe.1994.635812.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Nishimura, J., R. Guo, M. Higashihata, and T. Okada. "Optical Characteristics of ZnO Nanowires Synthesized by Nano-Particles Assisted Pulsed Laser Deposition." In 2007 Conference on Lasers and Electro-Optics - Pacific Rim. IEEE, 2007. http://dx.doi.org/10.1109/cleopr.2007.4391262.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Guo, R. Q., J. Nishimura, M. Ueda, M. Higashihata, D. Nakamura, and T. Okada. "Vertically Aligned Growth of ZnO Nanonails by Nanoparticle-Assisted Pulsed-Laser Ablation Deposition." In 2007 Conference on Lasers and Electro-Optics - Pacific Rim. IEEE, 2007. http://dx.doi.org/10.1109/cleopr.2007.4391263.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Szela, Jakub, Katherine A. Sloyan, Tina L. Parsonage, Jacob I. Mackenzie, and Robert W. Eason. "Thulium-doped yttria planar waveguide laser grown by pulsed laser deposition." In 2013 Conference on Lasers & Electro-Optics Europe & International Quantum Electronics Conference CLEO EUROPE/IQEC. IEEE, 2013. http://dx.doi.org/10.1109/cleoe-iqec.2013.6801312.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Tabata, Kazutoshi, Yo Ichikawa, Shingo Ono, Kentaro Fukuda, Toshihisa Suyama, Yuui Yokota, Takayuki Yanagida, Akira Yoshikawa, and Fumio Saito. "Ultraviolet photoconductive detector using CeF3 thin film grown by pulsed laser deposition." In The Pacific Rim Conference on Lasers and Electro-Optics (CLEO/PACIFIC RIM). IEEE, 2009. http://dx.doi.org/10.1109/cleopr.2009.5292623.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

May-Smith, T. C., J. Wang, J. I. Mackenzie, D. P. Shepherd, and R. W. Eason. "Diode-pumped garnet crystal waveguide structures fabricated by pulsed laser deposition." In 2006 Conference on Lasers and Electro-Optics and 2006 Quantum Electronics and Laser Science Conference. IEEE, 2006. http://dx.doi.org/10.1109/cleo.2006.4627736.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Afonso, C. N., R. Serna, J. M. Ballesteroa, A. Zschoke, and A. Polman. "Er Doped Active Waveguide Films Prepared by IN-SITU Doping During Pulsed Laser Deposition." In Proceedings of European Meeting on Lasers and Electro-Optics. IEEE, 1996. http://dx.doi.org/10.1109/cleoe.1996.562096.

Full text
APA, Harvard, Vancouver, ISO, and other styles

Reports on the topic "Pulsed electro deposition"

1

Chapman, J. N. Life cycle cost study for coated conductor manufacture by electron beam and pulsed laser deposition systems. Office of Scientific and Technical Information (OSTI), April 1999. http://dx.doi.org/10.2172/8939.

Full text
APA, Harvard, Vancouver, ISO, and other styles
You might also be interested in the extended bibliographies on the topic 'Pulsed electro deposition' for particular source types:
Journal articles Dissertations / Theses
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!

To the bibliography