Academic literature on the topic 'Lanthanum manganite'

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Journal articles on the topic "Lanthanum manganite"

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Nikitin, Stanislav, Sergey Popkov, Mikhail Petrov, Konstantin Terent’ev, Sergey Semenov, and Kirill Shaikhutdinov. "Features Of Magnetoresistance In The Bilayer Single Crystal Manganite LA1.4SR1.6MN2O7." Siberian Journal of Physics 10, no. 1 (March 1, 2015): 63–66. http://dx.doi.org/10.54362/1818-7919-2015-10-1-63-66.

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We investigate magnetoresistance of single-crystal bilayer lanthanum manganite La1.4Sr1.6Mn2O7 at a transport current flowing along the crystal c axis and in external magnetic fields applied parallel to the crystal c axis or ab plane. It is demonstrated that the La1.4Sr1.6Mn2O7 manganite exhibits the positive magnetoresistance effect in the magnetic field applied in the ab plane of the sample at the temperatures T < 60 K. The mechanism of this effect is shown to be fundamentally different from the colossal magnetoresistance effect typical of lanthanum manganites. The positive magnetoresistance originates from spin-dependent tunneling of carriers between the manganese-oxygen bilayers and can be explained by features of the magnetic structure of the investigated compounds.
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Rizzuti, Anotnio, Massimo Viviani, Anna Corradi, Paolo Nanni, and Cristina Leonelli. "Microwave-Assisted Hydrothermal Synthesis as a Rapid Route Towards Manganite Preparation." Solid State Phenomena 128 (October 2007): 21–24. http://dx.doi.org/10.4028/www.scientific.net/ssp.128.21.

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In this work attempts to prepare strontium-doped lanthanum manganites La1-xSrxMnO3 using microwave-assisted hydrothermal synthesis were undertaken from a mixture of lanthanum nitrate, strontium nitrate, manganese(II) nitrate, potassium permanganate and potassium hydroxide as a mineralizer. For x = 0.3, and x = 0.5, the perovskite obtained is not defined since both La0.7Sr0.3MnO3 and La0.5Sr0.5MnO3 phases are consistent with XRD spectra. While with x = 1.0, for the first time, hexagonal strontium manganite was prepared as blade-shaped crystallites with a narrow particle length distribution (range 3.75-7.75 μm) at 210°C using a treatment time of only 1 hour. Conventional hydrothermal synthetic routes require at least 24 hrs treatment time.
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Bolarín, A. M., F. Sánchez, A. Ponce, and E. E. Martínez. "Mechanosynthesis of lanthanum manganite." Materials Science and Engineering: A 454-455 (April 2007): 69–74. http://dx.doi.org/10.1016/j.msea.2006.12.062.

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Sardjono, Priyo, and Wisnu Ari Adi. "Thermal Analysis and Magnetic Properties of Lanthanum Barium Manganite Perovskite." Advanced Materials Research 896 (February 2014): 381–84. http://dx.doi.org/10.4028/www.scientific.net/amr.896.381.

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The lanthanum manganite is the family of magnetic materials which had the magnetic properties are varied depend on the composition. This study has been carried out synthesis and characterization of thermal and magnetic properties of the lanthanum barium manganite perovskite. The perovskite material is prepared by oxides, namely La2O3, BaCO3, and MnCO3. The mixture was milled for 10h and then sintered at temperature of 1000 °C for 10h. Thermal analysis and magnetic properties are measured by differential thermal analysis (TG-DTA) and vibrating sample magnetometer (VSM), respectively. Decomposition phase of MnCO3become MnO occurred at temperatures around 390 °C with releasing in CO2. Since lanthanum manganite has a stable ion configuration, magnetic properties of these systems are built from MnO phase transformation become α-Mn2O3is arrayed anti-ferromagnetic due to the presence of lanthanum in the system. And this anti-ferromagnetic behavior occurred due to magnetic interactions between Mn3+adjacent ions through super-exchange mechanism. While lanthanum barium manganite had a less stable ion configuration, therefore magnetic properties of these systems are built from phase transformation MnO become α-Mn3O4is arrayed ferromagnetic due to the presence of lanthanum and barium in this system. The presence of lanthanum and barium trigger in the emergence of mixed-valence Mn ions, so that occur to magnetic interaction between Mn3+and Mn4+through the double-exchange mechanism. We concluded that the characteristic of magnetic properties on the lanthanum barium manganite system perovskite is affected by thermal properties, fundamental properties of raw material and the result of reaction is formed.
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Wei, Ziyu, A. V. Pashchenko, N. A. Liedienov, I. V. Zatovsky, D. S. Butenko, Quanjun Li, I. V. Fesych, et al. "Multifunctionality of lanthanum–strontium manganite nanopowder." Physical Chemistry Chemical Physics 22, no. 21 (2020): 11817–28. http://dx.doi.org/10.1039/d0cp01426e.

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The established results expand the understanding of the practical use of manganite perovskites as multifunctional nanomaterials with a unique combination of magnetic, magnetothermal, and electrocatalytic properties.
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Shah, Syed Shaheen, Khizar Hayat, Shahid Ali, Kamran Rasool, and Yaseen Iqbal. "Conduction mechanisms in lanthanum manganite nanofibers." Materials Science in Semiconductor Processing 90 (February 2019): 65–71. http://dx.doi.org/10.1016/j.mssp.2018.10.008.

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YOKOKAWA, H. "Thermodynamic representation of nonstoichiometric lanthanum manganite." Solid State Ionics 86-88 (July 1996): 1161–65. http://dx.doi.org/10.1016/0167-2738(96)00281-0.

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Ushakova, T. G., A. G. Usvyatsova, and A. A. Safonova. "Chemical analysis of strontium-lanthanum-manganite." Refractories 33, no. 9-10 (September 1992): 423–24. http://dx.doi.org/10.1007/bf01283389.

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Liu, S. T., Y. Wu, and Y. Q. Jia. "Magnetic properties of lanthanum manganite and valence equilibria of manganese." Journal of Alloys and Compounds 197, no. 1 (June 1993): 91–96. http://dx.doi.org/10.1016/0925-8388(93)90624-v.

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Turky, Ali Omar, Mohamed Mohamed Rashad, Ali Mostafa Hassan, Elsayed M. Elnaggar, and Mikhael Bechelany. "Tailoring optical, magnetic and electric behavior of lanthanum strontium manganite La1−xSrxMnO3 (LSM) nanopowders prepared via a co-precipitation method with different Sr2+ ion contents." RSC Advances 6, no. 22 (2016): 17980–86. http://dx.doi.org/10.1039/c5ra27461c.

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Dissertations / Theses on the topic "Lanthanum manganite"

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Novokhatska, A. O., G. Ya Akimov, A. V. Zhebel, O. I. Linnik, V. T. Dovgiy, and V. V. Burkhovetskiy. "Forming of Nanoscale Structure in Manganite Ceramics with Superstoichiometric Manganese." Thesis, Sumy State University, 2013. http://essuir.sumdu.edu.ua/handle/123456789/35335.

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The new method for obtaining of the nanoscale structure by means of superstoichiometric manganese in lanthanum manganite (La0.65Sr0.35)1 – xMn1 + xO3 +_ Δ (x = 0, 0.1, 0.2) ceramics sintered at 1500 °C is developed. The increasing of x content from 0.1 to 0.2 leads to forming internal nanosize multilayer structure of ceramic grains with layer size of 190 and 280 nm, respectively. The correlation between such nanostructure and magnetoresistive properties is revealed. When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/35335
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Chen, Chun-che. "Correlation between electrical and magnetic properties in alkali and alkaline earth metal doped lanthanum manganites /." Digital version accessible at:, 1999. http://wwwlib.umi.com/cr/utexas/main.

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Cooper, Celeste Eaton. "Degradation in Performance of Lanthanum Strontium Manganite Based Solid Oxide Fuel Cell Cathodes Under Accelerated Testing." Case Western Reserve University School of Graduate Studies / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=case1485524881843845.

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Yang, Jun. "Studies on Polarization Behavior and Microstructure of Strontium-doped Lanthanum Manganite Cathodes for Solid Oxide Fuel Cells." 京都大学 (Kyoto University), 2011. http://hdl.handle.net/2433/151984.

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Mishra, Snigdharaj K. "Mean-field and density-functional studies of charge ordering and magnetic transitions in lanthanum manganites /." free to MU campus, to others for purchase, 1997. http://wwwlib.umi.com/cr/mo/fullcit?p9841176.

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Jin, Tongan. "Interactions of the Air Electrode with Electrolyte and Interconnect in Solid Oxide Cells." Diss., Virginia Tech, 2011. http://hdl.handle.net/10919/39223.

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The interactions between different components of solid oxide cells (SOCs) are critical issues for achieving the tens of thousands of hourâ s goal for long-term performance stability and lifetime. The interactions between the ceramic electrolyte, porous ceramic air electrode, and metallic interconnect materials â including solid state interfacial reactions and vaporization/deposition of some volatile elements â have been investigated in the simulated SOC operating environment. The interactions demonstrate the material degradation mechanisms of the cell components and the effects of different factors such as chemical composition and microstructure of the materials, as well as atmosphere and current load on the air electrode side. In the aspect of materials, this work contributes to the degradation mechanism on the air electrode side and provides practical material design criteria for long-term SOC operation. In this research, an yttria-stabilized zirconia electrolyte (YSZ)/strontium-doped lanthanum manganite electrode (LSM)/AISI 441 stainless steel interconnect tri-layer structure has been fabricated in order to simulate the air electrode working environment of a real cell. The tri-layer samples have been treated in dry/moist air atmospheres at 800°C for up to 500 h. The LSM air electrode shows slight grain growth, but the growth is less in moist atmospheres. The amount of Cr deposition on the LSM surface is slightly more for the samples thermally treated in the moist atmospheres. At the YSZ/LSM interface, La enrichment is significant while Mn depletion occurs. The Cr deposition at the YSZ/LSM interface is observed. The stoichiometry of the air electrode is an important factor for the interactions. The air electrode composition has been varied by changing the x value in (La0.8Sr0.2)xMnO3 from 0.95 to 1.05 (LSM95, LSM100, and LSM105). The enrichment of La at the YSZ/LSM interface inhibits the Cr deposition. The mechanisms of Cr poisoning and LSM elemental surface segregation are discussed. A 200 mA·cm-2 current load have been applied on the simulated cells. Mn is a key element for Cr deposition under polarization. Excessive Mn in the LSM lessens the formation of La-containing phases at the YSZ/LSM interface and accelerates Cr deposition. Deficient Mn in LSM leads to extensive interfacial reaction with YSZ forming more La-containing phase and inhibiting Cr deposition.
Ph. D.
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Esteve, David. "Développement d'une technique de caractérisation optique appliquée au suivi in situ de la croissance d'oxydes fonctionnels par ablation laser pulsé." Paris 11, 2010. http://www.theses.fr/2010PA112385.

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Une instrumentation optique entièrement statique permettant le suivi in situ de la croissance d'oxydes fonctionnels par ablation laser pulsé, est présenté. Au travers de l'étude de deux système modèles, que sont la croissance de films minces de La₀. ₆₇Sr₀. ₃₃LMnO₃ sur des pseudo-substrats de SrTiO₃/Si et de couches minces de SrRuO₃ déposées sur des substrats de SrTiO₃ vicinaux, le dispositif proposé permet d'obtenir une précision de mesure sur les épaisseurs de l'ordre de la maille atomique (4Å), d'extraire les paramètres physiques de diffusion des espèces en surface (énergie d'activation de diffusion), mais aussi d'observer et d'identifier les modes de croissance. Ces résultats sont en parfait accord avec la simulation numérique développée, reposant sur des modèles de traitement de réflectivité de systèmes multi couches combiné avec la théorie des milieux effectifs
A fully static set up allowing in situ observation of the growth of functionnal oxides grown by pulsed laser deposition, is presented. Through the study of two model systems, those are the growth of thin films of La₀. ₆₇Sr₀. ₃₃LMnO₃ on pseudo-substrate of SrTiO₃/Si and thin layers of SrRuO₃ grown on vicinal substrate of SrTiO₃, the proposed instrumentation permit to achieve a precision about one unit cell (4Å) on thickness measurments, to extract physical parameters of the diffusion of species on the surface (activation energy of diffusion), but also observing and identifying growth modes. These results are in good agreement with the numerical simulation developped, based on the treatment of the reflectivity of multi-layers systems combined with effective medium theory
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Devenson, Jelena. "Fabrication and investigation of heterostructures based on lanthanum manganites." Doctoral thesis, Lithuanian Academic Libraries Network (LABT), 2009. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2009~D_20091008_155508-20318.

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In this dissertation application of the lanthanum manganite films and their heterostructures for fabrication of new spintronic devices is discussed. The main subjects of this work are the junctions between lanthanum manganite oxide thin films doped by divalent (Ca, Ba, Sr) and tetravalent (Ce) ions as well heterojunctions formed between lanthanum manganites and n-type SrTiO3 (STON) or n - Si substrates. The influence of doping and substrate influence on crystalline quality of manganite film structures, interface roughness as well as their electrical and magnetic properties has been estimated in this dissertation. After performing complex investigations it has been determined that tetravalent Ce ion doped lanthanum manganite films have not the electron but hole-type conductivity on the contrary to that has been reported earlier. Forming of magnetic filed dependent “manganite / (STON, n - Si)“ diode structures has been described, comparative studies of electrical and magnetic properties have been presented, and major electro-physical parameters have been estimated in this work. Possible reasons of the origin of positive and negative magnetoresistance have been pointed out. In addition, structural stabilization problems of BiFeO3 compound, exhibiting at the same time magnetic as well as ferroelectric properties and possibilities of application of its unique properties in various lanthanum manganite structures for the development of new magnetic and electrical filed... [to full text]
Disertacijoje nagrinėjamos įvairios galimybės panaudoti feromagnetinių oksidų – manganitų sluoksnius bei jų darinius naujų spintronikos prietaisų gaminimui. Šio darbo pagrindiniu tyrimo objektu pasirinktos sandūros, sudarytos tarp dvivalenčiais (Ca, Ba, Sr) ir keturvalenčiais (Ce) jonais legiruotų lantano mangano oksidų plonųjų sluoksnių, o taip pat tarp manganitų ir elektroninio laidumo SrTiO3 (STON) bei n - Si padėklų. Darbe pateiktas išsamus minėtų manganitų sluoksnių ir jų darinių gaminimo magnetroninio dulkinimo ir impulsinio lazerinio garinimo būdais aprašymas. Disertacijoje pateikti plonųjų manganitų sluoksnių, užaugintų ant skirtingų padėklų, kristalinės struktūros bei paviršiaus kokybės tyrimo duomenys, aprašytas magnetiniu lauku valdomų diodinių darinių formavimas, jų elektrinių bei magnetinių savybių tyrimai, įvertinti svarbiausi atskirų manganitų sluoksnių bei jų diodinių darinių elektrofiziniai parametrai. Atlikus kompleksinius keturvalenčiais Ce4+ jonais legiruotų lantano manganito sluoksnių kristalinės sandaros bei elektrinių savybių tyrimus nustatyta, kad šie sluoksniai pasižymi ne elektroniniu, kaip buvo skelbta anksčiau, o skyliniu elektriniu laidumu. Skylinis junginio elektrinis laidumas paaiškintas nežymiu šalutinės CeO2 fazės ir katijonų vakansijų susidarymu auginamuose sluoksniuose. Pateikti Ca, Ba, Sr ir Ce jonais legiruotų manganitų įvairialyčių darinių palyginamieji tyrimai, įvertinta padėklo įtaką kristalinės manganitų sandaros tobulumui... [toliau žr. visą tekstą]
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Beyreuther, Elke. "Photon-assisted spectroscopy of electronic interface states in perovskite oxide heterostructures." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2007. http://nbn-resolving.de/urn:nbn:de:swb:14-1198071350768-13837.

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Complex oxides are an intriguing field of solid-state research, as they can exhibit a wide variety of functional properties, such as ferroelasticity, ferroelectricity, ferro- and antiferromagnetism or an even more complicated type of magnetic ordering, the combination or interaction of those ferroic properties (multiferroicity), high spin polarization, or high-temperature superconductivity. Thus they are prospective candidates for future materials in microelectronics. It is a matter of fact that the performance of such oxide-based devices depends mainly on transport properties, which in turn depend on the distribution and density of intrinsic or extrinsic electronic interface states across the device structure. The present thesis focuses on the identification and characterization of such electronic properties by two different photoassisted spectroscopy techniques: surface photovoltage spectroscopy and photoelectron spectroscopy. This work especially deals with perovskite oxides, namely with the model perovskite strontium titanate (SrTiO3) as a substrate and three differently doped lanthanum manganite thin films (10-15 nm thickness) grown by pulsed laser deposition (PLD) on the SrTiO3 substrate(La0.7Sr0.3MnO3, La0.7Ca0.3MnO3, La0.7Ce0.3MnO3). The first part aims at the identification of electronic surface and interface states at the free SrTiO3 surface as well as at the three different lanthanum manganite/SrTiO3 interfaces. For that purpose three different experimental realizations of the surface photovoltage spectroscopy technique were implemented and employed: photoelectron spectroscopy under additional optical excitation, the capacitive detection of the photoinduced displacement current in a parallel-plate capacitor geometry under modulated optical excitation, and the classical Kelvin probe technique. The methods are evaluated comparatively with respect to their suitability to analyze the given oxidic interfaces. The main result of this first part is a map of the energetic positions and relaxation time constants of the surface states at the SrTiO3 surface as well as of the interface states at the lanthanum manganite/SrTiO3 interfaces within the SrTiO3 bandgap. The interface states were classified into film- and substrate-induced states and it could be demonstrated that an appropriate annealing procedure can dramatically decrease their densities. The second part tackles the problem of the manganese valence and the doping type of di- and tetravalent-ion-doped LaMnO3. The question whether the insulating parent compound LaMnO3 becomes an electron-doped semiconductor after doping with tetravalent cations such as Ce4+ - which would be in analogy to the well-established hole doping after partial substitution of La3+ by divalent cations such as Sr2+ or Ca2+ - has been discussed controversially in the literature so far. Due to the physics of the manganite crystal lattice the question can also be formulated in a different way: Can part of the manganese ions be driven from the Mn3+ state towards the Mn2+ state without any crystal instabilities or phase separation phenomena? In order to contribute to the clarification of this question, an extensive X-ray- and UV-photoelectron spectroscopy (XPS/UPS) investigation was performed. The three differently doped lanthanum manganite thin films were comparatively studied considering the exchange splitting of the Mn 3s core level line, which is a linear function of the Mn valence, as measured by XPS and the work function as extracted from UPS. All measurements were performed at different states of deoxygenation after heating in ultrahigh vacuum and reoxidation after heating in a pure oxygen atmosphere. Strong evidence for electron doping of the La0.7Ce0.3MnO3 film after deoxygenation was found. Furthermore, the reversible tunability of the Mn valence by variation of the oxygen content could be demonstrated for both tetravalent- and divalent-ion-doped lanthanum manganite films
Oxidische Komplexverbindungen können eine Vielzahl an funktionellen Eigenschaften, wie z.B. Ferroelastizität, Ferroelektrizität, Ferro- und Antiferromagnetismus sowie kompliziertere magnetische Ordnungen, die Kombination und Interaktion solcher ferroischer Eigenschaften (Multiferroizität), hohe Spinpolarisation oder Hochtemperatursupraleitung aufweisen und gelten daher als aussichtsreiche Materialien für die zukünftige Mikroelektronik. Entscheidend für die Funktionsfähigkeit oxidischer Bauelemente sind deren elektronische Transporteigenschaften, die in äußerst sensibler Weise von der Verteilung und Dichte von ex- oder intrinsischen elektronischen Defektzuständen an Grenz- und Oberflächen innerhalb der Bauelementstruktur abhängen. Die vorliegende Arbeit beschäftigt sich mit der Spektroskopie solcher elektronischer Eigenschaften mittels photonenbasierter Methoden. Im Fokus stehen dabei perowskitische Oxide , speziell das Modellperowskit Strontiumtitanat (SrTiO3) als Substrat und darauf mittels gepulster Laserdeposition (PLD) abgeschiedene dünne Filme (10-15 nm Dicke) dotierter Lanthanmanganate (La0.7Sr0.3MnO, La0.7Ca0.3MnO3, La0.7Ce0.3MnO3). Im Rahmen einer halbleiterphysikalischen Interpretation widmet sich der erste Teilder Identifikation elektronischer Ober- und Grenzflächenzustände an der SrTiO3-Oberfläche sowie an verschiedenen Lanthanmanganat/SrTiO3-Grenzflächen mittels dreier unterschiedlicher experimenteller Methoden zur Vermessung der Oberflächenphotospannung: der Photoelektronenspektroskopie unter zusätzlicher optischer Anregung, einer kapazitiven Detektionsmethode in Plattenkondensatorgeometrie unter modulierter optischer Anregung und der optischen Kelvin-Sonde. Neben einem auf die bei oxidischen Ober- und Grenzflächen auftretenden besonderen Herausforderungen zugeschnittenen Methodenvergleich werden Grenzflächenzustände bezüglich ihrer energetischen Position in der Bandlücke des SrTiO3 und ihres Relaxationsverhaltens analysiert, als substrat- oder filminduziert klassifiziert, und die Verringerung ihrer Dichte nach geeigneter Ausheilprozedur wird nachgewiesen. Der zweite Teil der Arbeit befasst sich mit der in der Literatur bisher kontrovers diskutierten Frage, ob sich die isolierende Stammverbindung LaMnO3 durch Dotierung mit tetravalenten Kationen, wie z.B. Ce4+, in einen elektronendotierten Halbleiter verwandeln lässt - analog zur Herstellung lochdotierter Lanthanmanganate durch Dotierung mit divalenten Kationen, wie z.B. Sr2+ oder Ca2+. Die Frage ist äquivalent zur Betrachtung, ob unter Beibehaltung der Stabilität des Kristallgitters ein Teil der Manganionen vom Mn3+-Zustand in den Mn2+-Zustand übergehen kann. Um einen Beitrag zur Klärung dieses Problems zu leisten, wurden als elektronisch sensitive Methoden die Röntgen- und UV-Photoelektronenspektroskopie (XPS/UPS) gewählt. Die oben genannten Lanthanmanganatfilme wurden dazu hinsichtlich der Austauschaufspaltung der Mangan-3s-Linie im XP-Spektrum, die in linearer Weise von der Manganvalenz abhängt, und der anhand der Breite des UP-Spektrums ermittelten Austrittsarbeit jeweils nach Reinigung der Oberfläche im Ultrahochvakuum (UHV) vergleichend untersucht. Die Messungen wurden nach unterschiedlich starker Desoxidation durch Heizen im UHV und Reoxidierung durch Heizen in Sauerstoffatmosphäre durchgeführt. Es konnte nachgewiesen werden, dass eine Elektronendotierung des La0.7Ce0.3MnO3-Films bei geeigneter Einstellung des Sauerstoffgehalts tatsächlich möglich ist. Außerdem wurde gezeigt, dass sich sowohl in di- als auch in tetravalent dotierten Lanthanmanganatfilmen die Manganvalenz und damit der Dotierungstyp reversibel durchstimmen lässt
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Berenov, Andrey Valdimirovich. "Cation deficiency in lanthanum manganites." Thesis, Imperial College London, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.322303.

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Book chapters on the topic "Lanthanum manganite"

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McCarthy, Benjamin, Harlan Anderson, Xaio-Dong Zhou, Larry Pederson, Gregory Coffey, and Prabhakar Singh. "Anomolus Shrinkage of Lanthanum Strontium Manganite." In Ceramic Engineering and Science Proceedings, 139–49. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2008. http://dx.doi.org/10.1002/9780470291245.ch16.

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Chiba, Rubens, Reinaldo Azevedo Vargas, Marco Andreoli, and Emília Satoshi Miyamaru Seo. "Solid Oxide Fuel Cells: Strontium-Doped Lanthanum Manganite Obtained by the Citrate Technique." In Materials Science Forum, 643–48. Stafa: Trans Tech Publications Ltd., 2006. http://dx.doi.org/10.4028/0-87849-423-5.643.

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Zhang, Lan, Yujun Zhang, Y. D. Zhen, and San Ping Jiang. "Lanthanum Strontium Manganite Powders Synthesized by Gel-Casting for Solid Oxide Fuel Cell Cathode Materials." In Progress in Nanotechnology, 71–76. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2014. http://dx.doi.org/10.1002/9780470588246.ch11.

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Chaichanawong, Jintawat, Kazuyoshi Sato, Hiroya Abe, Makio Naito, Tawatchai Charinpanitkul, and Wiwut Tanthapanichakoon. "Influence of Water Content of Starting Powder Mixture on the Mechanochemical Synthesis of Strontium Doped Lanthanum Manganite." In Ceramic Transactions Series, 199–204. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2011. http://dx.doi.org/10.1002/9781118144145.ch31.

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Aritonang, Sovian, Wisnu Ari Adi, Riyadi Juhana, and Tutut Herawan. "Structural and Reflection Loss Properties of Fe3+ Substituted Lanthanum Manganite as Microwave Absorbing Material in X-Ku Band." In Lecture Notes in Mechanical Engineering, 949–59. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-15-9505-9_83.

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Santos, Diogo M. F., and César A. C. Sequeira. "Electrocatalytic Studies of Oxygen Reduction by Lanthanum Barium Manganate." In Defect and Diffusion Forum, 327–32. Stafa: Trans Tech Publications Ltd., 2006. http://dx.doi.org/10.4028/3-908451-36-1.327.

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Backhaus-Ricoult, Monika, Michael Badding, Jacqueline Brown, Mike Carson, Earl Sanford, and Yves Thibault. "Interface Reactivity Between Yttria Stabilized Ziconia and Strontium-Lanthanum Manganites." In Ceramic Transactions Series, 21–30. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2012. http://dx.doi.org/10.1002/9781118407189.ch3.

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Oda, Katsuro, Yasunari Miwa, and Hideyuki Ohtsuka. "Electromagnetic Properties of Lanthanum Manganese Oxides Doped with Iron." In Industrial Applications of the Mössbauer Effect, 569–78. Dordrecht: Springer Netherlands, 2002. http://dx.doi.org/10.1007/978-94-010-0299-8_62.

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Pardasani, R. T., and P. Pardasani. "Magnetic properties of double perovskite of lanthanum, gallium and manganese." In Magnetic Properties of Paramagnetic Compounds, Magnetic Susceptibility Data, Volume 1, 44–45. Berlin, Heidelberg: Springer Berlin Heidelberg, 2021. http://dx.doi.org/10.1007/978-3-662-62478-4_12.

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Lin, Sidney, and Jiri Selig. "Finite Element Analysis of Self-propagating High-Temperature Synthesis of Strontium-Doped Lanthanum Manganate." In Ceramic Transactions Series, 53–62. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2009. http://dx.doi.org/10.1002/9780470522189.ch6.

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Conference papers on the topic "Lanthanum manganite"

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Nakano, K., M. Naoe, M. Yamasaki, K. K. Choi, T. Taniyama, and Y. Yamazaki. "Bias dependent intergrain tunneling in lanthanum manganite thin films." In IEEE International Magnetics Conference. IEEE, 1999. http://dx.doi.org/10.1109/intmag.1999.837376.

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Al Ahmad, Mahmoud. "Magnetic flux density computation in voltage-controlled lanthanum strontium manganite materials." In 2015 Joint IEEE International Symposium on the Applications of Ferroelectric (ISAF), International Symposium on Integrated Functionalities (ISIF), and Piezoelectric Force Microscopy Workshop (PFM). IEEE, 2015. http://dx.doi.org/10.1109/isaf.2015.7172718.

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Harris, William M., George J. Nelson, Jeffrey J. Lombardo, Alex P. Cocco, John R. Izzo, Wilson K. S. Chiu, Pietro Tanasini, et al. "Analysis of Solid Oxide Fuel Cell LSM-YSZ Composite Cathodes With Varying Starting Powder Sizes." In ASME 2011 International Mechanical Engineering Congress and Exposition. ASMEDC, 2011. http://dx.doi.org/10.1115/imece2011-64237.

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Solid oxide fuel cell cathodes have been examined using non-destructive x-ray nanotomography. The cathodes examined were a composite of strontium-doped lanthanum manganite (LSM) and yttria-stabilized zirconia (YSZ), with three different starting powder sizes of 0.3 μm, 0.5 μm, and 1 μm. Differential absorption contrast imaging was performed over the manganese K-edge (6539 eV) for the identification of the LSM, YSZ, and pore phases. The three phases were each segmented from reconstruction of the tomography data. Three dimensional volumes of the segmented phases were used to calculate structural characterization parameters of the sample including porosity, pore size distributions, and mean phase sizes. These parameters are reported and some correlations are drawn to the starting powder size.
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Gopalakrishna, Smitha Mysore, and Malalkere Veerappa Murugendrappa. "Optical band gap determination of calcium doped lanthanum manganite nano particle tailored with polypyrrole." In PROCEEDINGS OF THE INTERNATIONAL SEMINAR ON METALLURGY AND MATERIALS (ISMM2017): Metallurgy and Advanced Material Technology for Sustainable Development. Author(s), 2018. http://dx.doi.org/10.1063/1.5038691.

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Saw, Ajay Kumar, Ganesha Channagoudra, Shivakumar Hunagund, Fu Hao, Ravi L. Hadimani, and Vijaylakshmi Dayal. "Study of magnetotransport and low temperature anomaly in half doped lanthanum calcium manganite nanoparticle." In DAE SOLID STATE PHYSICS SYMPOSIUM 2018. AIP Publishing, 2019. http://dx.doi.org/10.1063/1.5113276.

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Hercuadi, Asep Yudi, Nasrullah Armi, Nanang Sudrajat, and Wisnu Ari Adi. "Calculation of complex permeability and permittivity on Lanthanum barium manganite materials at X-band frequency." In 2015 IEEE 4th Asia-Pacific Conference on Antennas and Propagation (APCAP). IEEE, 2015. http://dx.doi.org/10.1109/apcap.2015.7374462.

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Jadav, G. D., P. V. Kanjariya, S. K. Chavda, and J. A. Bhalodia. "Effect of Al and Ti substitution on the structural and magnetotransport properties of Lanthanum-Strontium manganite." In INTERNATIONAL CONFERENCE ON NANOMATERIALS FOR ENERGY CONVERSION AND STORAGE APPLICATIONS: NECSA 2018. Author(s), 2018. http://dx.doi.org/10.1063/1.5035195.

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Bhaskaran, Smitha, Honey Ross J. Manjaly, and E. Veena Gopalan. "On the structural and dielectric properties of sol-gel synthesized copper doped lanthanum sodium manganite (LNCMO) nanoparticles." In THE 3RD INTERNATIONAL CONFERENCE ON OPTOELECTRONIC AND NANO MATERIALS FOR ADVANCED TECHNOLOGY (icONMAT 2019). Author(s), 2019. http://dx.doi.org/10.1063/1.5093851.

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Al Ahmad, Mahmoud. "Combined Electric and Magnetic Field Tuning of the Impedance of Lanthanum Strontium Manganite Thin Film Interdigital Electrode Devices." In 2018 Progress in Electromagnetics Research Symposium (PIERS-Toyama). IEEE, 2018. http://dx.doi.org/10.23919/piers.2018.8597790.

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Song, Jung-Hoon, Nigel M. Sammes, and Xiaoyu Zhang. "Fabrication of Anode-Supported Micro-Tubular Solid Oxide Fuel Cell Using an Extrusion and Vacuum Infiltration Technique." In ASME 2008 6th International Conference on Fuel Cell Science, Engineering and Technology. ASMEDC, 2008. http://dx.doi.org/10.1115/fuelcell2008-65264.

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A simple and mass productive extrusion technique was applied to fabricate anode-supported micro-tubular solid oxide fuel cells (SOFCs). A standard NiO/8YSZ (Nickel oxide/8 mol % yttria stabilized zirconia) cermets anode, 8 YSZ electrolyte, and LSM (Lanthanum strontium manganite) cathode were used as the materials components. SEM (secondary electron microscopy) images indicated vacuum infiltration method successfully generated the thin electrolyte layer (10∼15 μm) with a structurally effective three phase boundaries. Fabricated unit cell showed the open circuit voltage of 1.12 V without any fuel leaking problems. Electrochemical tests showed a maximum power density up to 0.30 W/cm2 at 800 °C, implying the excellent performance as micro-tubular SOFCs. This study verified that the extrusion aided by vacuum infiltration process could be a promising technique for mass production of microtubualr SOFCs.
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Reports on the topic "Lanthanum manganite"

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Singh, Prabhakar, Manoj Mahapatra, Rampi Ramprasad, Nguyen Minh, and Scott Misture. Study of the Durability of Doped Lanthanum Manganite and Cobaltite Cathode Materials under ''Real World'' Air Exposure Atmospheres. Office of Scientific and Technical Information (OSTI), November 2014. http://dx.doi.org/10.2172/1183564.

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