Log in

Relevant bibliographies by topics / Magnets / Dissertations / Theses

To see the other types of publications on this topic, follow the link: Magnets.

Dissertations / Theses on the topic 'Magnets'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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

Select a source type:

Consult the top 50 dissertations / theses for your research on the topic 'Magnets.'

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.

Browse dissertations / theses on a wide variety of disciplines and organise your bibliography correctly.

1

Marcellini, Moreno. "Magnetic Ordering in Layered Magnets." Doctoral thesis, Uppsala universitet, Materialfysik, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-8604.

Full text

Abstract:

The preparation of layered magnets needs the knowledge of growth techniques which are focused on the growth of Fe/V(001) superlattices. Such films have been structurally investigated by X-rays reflectivity and diffraction. The magnetic investigations have been carried out by magneto-optic Kerr effect (MOKE), Superconducting Quantum Interference Device (SQUID) magnetometry and polarized neutron reflectivity (PNR). This latter technique has been used in cooperation with the Institute Laue Langvin (Grenoble, France) and Ruhr Universität (Bochum, Germany). The cross-over in universality class is s

APA, Harvard, Vancouver, ISO, and other styles

2

Riley, Melissa Alessandra. "The use of magnets in biomedical applications." Thesis, University of Birmingham, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.364498.

Full text

APA, Harvard, Vancouver, ISO, and other styles

3

Etzkorn, Stephen J. "Magnetic relaxation in organic-based magnets." Connect to this title online, 2003. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1044548603.

Full text

Abstract:

Thesis (Ph. D)--Ohio State University, 2003.<br>Title from first page of PDF file. Document formatted into pages; contains xvi, 134 p. : ill. (some col.). Includes abstract and vita. Advisor: Arthur J. Epstein, Dept. of Physics. Includes bibliographical references (p. 128-134).

APA, Harvard, Vancouver, ISO, and other styles

4

Klešč, Tania. "Neodimio magnetų eksperimentinis tyrimas." Bachelor's thesis, Lithuanian Academic Libraries Network (LABT), 2013. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2013~D_20130821_115730-10514.

Full text

Abstract:

Bakalauro darbą „ Neodimio magnetų eksperimentinis tyrimas“ sudaro įvadas, keturi skyriai, išvados, priedai ir literatūros sąrašas. Šio darbo apimtis 30 puslapių. Darbe yra 26 paveikslėliai ir 1 lentelė.Įvade iškeliama darbo problema, tikslai ir uždaviniai. Pirmajame skyriuje pateikta literatūros analizė. Antrajame skyriuje aprašoma eksperimento metodika. Trečiajame skyriuje pateikti sistemų su neodimio magnetais tyrimo rezultatai. Ketvirtajame skyriuje pateikta eksperimento rezultatų analizė. Darbo pabaigoje pateiktos išvados apibendrinančios atliktą darbą ir pateikti pasiūlymai, kur būtų gal

APA, Harvard, Vancouver, ISO, and other styles

5

Krupskaya, Yulia. "Magnetic Properties of Molecular and Nanoscale Magnets." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2011. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-73289.

Full text

Abstract:

The idea of miniaturizing devices down to the nanoscale where quantum ffeffects become relevant demands a detailed understanding of the interplay between classical and quantum properties. Therefore, characterization of newly produced nanoscale materials is a very important part of the research in this fifield. Studying structural and magnetic properties of nano- and molecular magnets and the interplay between these properties reveals new interesting effects and suggests ways to control and optimize the respective material. The main task of this thesis is investigating the magnetic properties o

APA, Harvard, Vancouver, ISO, and other styles

6

Henderson, John. "SPIN QUANTUM DYNAMICS IN MOLECULAR MAGNETS." Doctoral diss., University of Central Florida, 2009. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/3535.

Full text

Abstract:

Molecular magnets are ideal systems to probe the realm that borders quantum and classical physics, as well as to study decoherence phenomena in nanoscale systems. The control of the quantum behavior of these materials and their structural characteristics requires synthesis of new complexes with desirable properties which will allow probing of the fundamental aspects of nanoscale physics and quantum information processing. Of particular interest among the magnetic molecular materials are single-molecule magnets (SMMs) and antiferromagnetic (AFM) molecular wheels in which the spin state of the m

APA, Harvard, Vancouver, ISO, and other styles

7

Sun, Fei. "Transformation Optics for Controlling DC Magnetic Field." Doctoral thesis, KTH, Elektroteknisk teori och konstruktion, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-155326.

Full text

Abstract:

Based on the form-invariant of Maxwell’s equations under coordinate transformations, we extend the theoryof transformation optics to transformation magneto-statics, which can design magnets through coordinatetransformations. Some novel DC magnetic field illusions created by magnets (e.g. rescaling magnets,cancelling magnets and overlapping magnets) are designed and verified by numerical simulations. Ourresearch will open a new door to designing magnets and controlling DC magnetic fields.<br><p>QC 20141105</p>

APA, Harvard, Vancouver, ISO, and other styles

8

Varghese, Philip. "Magnet design considerations for superconductive magnetic energy storage." Diss., This resource online, 1992. http://scholar.lib.vt.edu/theses/available/etd-02052007-081238/.

Full text

APA, Harvard, Vancouver, ISO, and other styles

9

Melander, Emil. "Optical and magneto-optical diractometer for studies ofpatterned magnets." Thesis, KTH, Tillämpad fysik, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-32898.

Full text

Abstract:

A MOKE setup was constructed and measurements have been performed in order to verify the versatility of this equipment. The quadrupole air core coils are capable of delivering a maximum magnetic eld of 13 mT in longitudinal, transversal as well as polar MOKE. The diractometer enables re　ective scans (Kerr eect) from 20 to 90 degrees and transmissive scans (Faraday eect) from 0 to 90 degrees (optical convention). The combined equipment that constitutes of these two parts enables thorough characterization of optical, magnetical and magneto-optical phenomena which will be of great benet for studi

APA, Harvard, Vancouver, ISO, and other styles

10

Poole, A. L. "Magnetism in frustrated magnets revealed by neutron polarimetry." Thesis, University College London (University of London), 2011. http://discovery.ucl.ac.uk/1302402/.

Full text

Abstract:

The work in this thesis uses neutron polarimetry and representational analysis to illuminate complex magnetic structures. The combination of these techniques is particularly suited to examining magnetic materials that have frustrated magnetic order and domain structures. The materials that are investigated in depth are Er2Ti2O7 and MnWO4. Er2Ti2O7 is a member of the pyrochlore family of materials and exhibits the classic signs of geometric frustration. The material has been proposed as an XY antiferromagnet that selects a specic basis vector ground state due to an order-by-disorder transition.

APA, Harvard, Vancouver, ISO, and other styles

11

Lopez, Gomez Partida Fausto. "Design of a Permanent Magnet Synchronous Generator with Alnico Magnets." Thesis, Uppsala universitet, Elektricitetslära, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-395215.

Full text

Abstract:

Following the trends to diminish the fossil fuel energy production new technologies known for their renewable sources have become a signficant option for helping combat climate change and handle the current oil prices. These new technologies base their power production on already established physical principles that convert mechanical power to electrical power. Generators are the fundamental piece of machinery for electricity production. Among the various types of generators that exist, permanent magnet synchronous generators (PMSGs) are commonly used for renewable electricity production. At p

APA, Harvard, Vancouver, ISO, and other styles

12

DAMENTO, MICHAEL ANTHONY. "DETECTION OF MAGNETIZATION REVERSAL IN A NEODYMIUM-IRON-BORON MAGNET USING A HALL-EFFECT MICROPROBE." Diss., The University of Arizona, 1986. http://hdl.handle.net/10150/183945.

Full text

Abstract:

Magnetization processes in a sintered Nd-Fe-B permanent magnet (NEOMAX-35) were examined on a small scale using a Hall-effect microprobe with an active area 75 μm on a side. Probes were made by evaporating bismuth through a stencil mask onto glass slides. Experiments were performed by placing a probe onto the polished pole face of a Nd-Fe-B magnet and inserting the probe-magnet assembly into an electromagnet. Barkhausen steps, indicating rapid domain wall motion, were observed (superimposed upon the blank probe signal) in the demagnetization of a fully magnetized magnet. Magnetization traces f

APA, Harvard, Vancouver, ISO, and other styles

13

Seabra, Luís Miguel Alves Vidal de. "Novel phases in frustrated magnets under high magnetic field." Thesis, University of Bristol, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.535217.

Full text

APA, Harvard, Vancouver, ISO, and other styles

14

Luo, Guangpu. "Electron Transport via Single Molecule Magnets with Magnetic Anisotropy." Diss., Virginia Tech, 2019. http://hdl.handle.net/10919/87532.

Full text

Abstract:

Single molecule magnets (SMMs) are molecules of mesoscopic scale which exhibit quantum properties such as quantum tunneling of magnetization, quantum interference, spin filtering effects, strong spin-phonon coupling and strong hyperfine Stark effects. These effects allow applications of SMMs to high-density information storage, molecular spintronics, and quantum information science. Therefore, SMMs are of interest to physicists, chemists, and engineers. Recently, experimental fabrication of individual SMMs within transistor set-ups have been achieved, offering a new method to examine magnetic

APA, Harvard, Vancouver, ISO, and other styles

15

Pejaković, Dusan. "Optical control of magnetic order in molecule-based magnets." The Ohio State University, 2001. http://rave.ohiolink.edu/etdc/view?acc_num=osu1343232538.

Full text

APA, Harvard, Vancouver, ISO, and other styles

16

Pejakovi?, Dušan. "Optical control of magnetic order in molecule-based magnets /." The Ohio State University, 2001. http://rave.ohiolink.edu/etdc/view?acc_num=osu1486572165278271.

Full text

APA, Harvard, Vancouver, ISO, and other styles

17

Khelfallah, Malika. "Magnetic properties of ferrofluids of self-assembled nano-magnets." Electronic Thesis or Diss., Sorbonne université, 2023. http://www.theses.fr/2023SORUS502.

Full text

Abstract:

Cette thèse a pour objectif principal d'explorer les effets de l’assemblage créé par les interactions magnétiques dipolaires entre des nanoparticules magnétiques en suspension colloïdales dans un liquide (ferrofluide) sur les propriétés magnétiques de ce ferrofluide. Ce travail se base sur la caractérisation approfondie de ferrofluides constitués de nanoparticules en forme de fleurs composées de matériaux magnétiques durs tels que la ferrite de cobalt (CoFe2O4), ou de matériaux magnétiques mous comme la ferrite de manganèse (MnFe2O4) et la maghémite (γ-Fe2O3). Les propriétés magnétiques de ces

APA, Harvard, Vancouver, ISO, and other styles

18

Aubin, Sheila Marie Josée. "Single-molecule magnets /." Diss., Connect to a 24 p. preview or request complete full text in PDF format. Access restricted to UC campuses, 1997. http://wwwlib.umi.com/cr/ucsd/fullcit?p9820882.

Full text

APA, Harvard, Vancouver, ISO, and other styles

19

Schoerling, Daniel. "Superconducting wiggler magnets for beam-emittance damping rings." Doctoral thesis, Technische Universitaet Bergakademie Freiberg Universitaetsbibliothek "Georgius Agricola", 2012. http://nbn-resolving.de/urn:nbn:de:bsz:105-qucosa-85819.

Full text

Abstract:

Elektronen- und Positronenstrahlen mit niedrigsten Emittanzen und hohen Strömen werden in zukünftigen Linearbeschleunigern, wie zum Beispiel dem Compact Linear Collider (CLIC), benötigt, um die geforderte Leuchtkraft für physikalische Experimente bereit zu stellen. Diese Strahlen können in Dämpfungsringen, ausgestattet mit starken, supraleitenden Dämpfungswigglermagneten, erzeugt werden. In dieser Arbeit sind Designkonzepte verschiedener supraleitender Dämpfungswigglermagnete entwickelt worden. Testspulen sowie Modelle sind gebaut und getestet, elektrische Verbindungstechniken entwickelt worde

APA, Harvard, Vancouver, ISO, and other styles

20

Inglis, Ross. "Oxime based manganese molecular magnets." Thesis, University of Edinburgh, 2010. http://hdl.handle.net/1842/4755.

Full text

Abstract:

The synthesis and characterisation of a large family of hexametallic [MnIII 6] Single-Molecule Magnets with general formula [MnIII 6O2(R-sao)6(X)2(L)4-6] (where sao2- = dianion of salicylaldoxime; R = H, Me, Et, Ph; X = O2CR' (R' = H, Me, Ph etc), Hal , O2PHPh or O2P(Ph)2; L = solvent) are presented. Deliberate structural distortions of the [Mn3O] trinuclear moieties within the complexes are used to tune the observed magnetic properties. These findings highlight a qualitative magnetostructural correlation whereby the type (anti- or ferromagentic) of each Mn2 pairwise magnetic exchange is domin

APA, Harvard, Vancouver, ISO, and other styles

21

Lim, Joshua A. "The role of local versus itinerant magnetism : studies of dilute magnetic semiconductors and multi-k magnets." Thesis, University of Birmingham, 2013. http://etheses.bham.ac.uk//id/eprint/4639/.

Full text

Abstract:

The electronic properties of the materials studied in this thesis: a dilute magnetic semiconductor and a member of the actinide family, are thought to lie on the edge of local and itinerant behaviours. The role of localised versus itinerant magnetism is indirectly explored by characterising the magnetism through a range of experimental techniques. Reports of magnetism in dilute magnetic semiconductors have been largely conflicting, with most focusing on thin films. This work characterises high quality bulk single crystals of Cr-doped TiO\(_2\) and finds no magnetic ordering down to 4K. This su

APA, Harvard, Vancouver, ISO, and other styles

22

Hilton, Geoffrey. "The analysis of magnetic drives using rare earth permanent magnets." Thesis, University of Sunderland, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.368123.

Full text

APA, Harvard, Vancouver, ISO, and other styles

23

Pollard, Robert James. "The microstructure and magnetic properties of NdFeB based permanent magnets." Thesis, University of Salford, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.328260.

Full text

APA, Harvard, Vancouver, ISO, and other styles

24

Brunt, Daniel C. "Magnetic properties of frustrated Shastry-Sutherland magnets : rare earth tetraborides." Thesis, University of Warwick, 2017. http://wrap.warwick.ac.uk/98779/.

Full text

Abstract:

Geometrically frustrated magnetism arises when the competing interactions are incompatible with the geometry of the lattice. This leads to a large ground state degeneracy and the system typically has difficulty establishing a unique ground state, often giving rise complex intermediate magnetic phases and other unusual phenomena. Recently the rare-earth tetraborides, RB4, family of compounds has garnered attention as it is a rare experimental realisation of the frustrated Shastry-Sutherland lattice. Here the R3+ ions form a network of squares and triangles which is topologically equivalent to t

APA, Harvard, Vancouver, ISO, and other styles

25

Venkateswaran, N. "Magnetic and microstructure properties of iron-rare earth-carbon magnets." Thesis, Kansas State University, 1988. http://hdl.handle.net/2097/16051.

Full text

APA, Harvard, Vancouver, ISO, and other styles

26

Tituana, Luis Rodrigo. "IMPLEMENTATION OF A PLANAR MAGNETIC MANIPULATOR WITH ROTATABLE PERMANENT MAGNETS." OpenSIUC, 2020. https://opensiuc.lib.siu.edu/theses/2664.

Full text

Abstract:

The development of new techniques for control of magnetic objects by external magnetic fields has been in constant improvement. These advancements range from the design and fabrication of magnetic nanoparticles to design and control of actuators that enable their manipulation. The ability to guide such magnetic objects at a distance without any direct mechanical contact is an attractive feature with great potential in medical applications. Magnetic fields are not distorted by their interaction with nonmagnetic materials, like those in the human body; and pose no harm to living tissues, which m

APA, Harvard, Vancouver, ISO, and other styles

27

Gîrtu, Mihai A. "Magnetic ordering in hybrid organic/inorganic nanocomposites -magnets by design-." The Ohio State University, 1998. http://rave.ohiolink.edu/etdc/view?acc_num=osu1343145729.

Full text

APA, Harvard, Vancouver, ISO, and other styles

28

Gîr?u, Mihai A. "Magnetic ordering in hybrid organic/inorganic nanocomposites -magnets by design- /." The Ohio State University, 1998. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487949836207972.

Full text

APA, Harvard, Vancouver, ISO, and other styles

29

Borghi, Chiara Caterina <1986&gt. "Continuous-Flow Magnetic Separation with Permanent Magnets for Water Treatment." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2014. http://amsdottorato.unibo.it/6233/1/Borghi_ChiaraCaterina_tesi.pdf.

Full text

Abstract:

More efficient water treatment technologies would decrease the water bodies’ pollution and the actual intake of water resource. The aim of this thesis is an in-depth analysis of the magnetic separation of pollutants from water by means of a continuous-flow magnetic filter subjected to a field gradient produced by permanent magnets. This technique has the potential to improve times and efficiencies of both urban wastewater treatment plants and drinking water treatment plants. It might also substitute industrial wastewater treatments. This technique combines a physico-chemical phase of adsorptio

APA, Harvard, Vancouver, ISO, and other styles

30

Borghi, Chiara Caterina <1986&gt. "Continuous-Flow Magnetic Separation with Permanent Magnets for Water Treatment." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2014. http://amsdottorato.unibo.it/6233/.

Full text

Abstract:

More efficient water treatment technologies would decrease the water bodies’ pollution and the actual intake of water resource. The aim of this thesis is an in-depth analysis of the magnetic separation of pollutants from water by means of a continuous-flow magnetic filter subjected to a field gradient produced by permanent magnets. This technique has the potential to improve times and efficiencies of both urban wastewater treatment plants and drinking water treatment plants. It might also substitute industrial wastewater treatments. This technique combines a physico-chemical phase of adsorptio

APA, Harvard, Vancouver, ISO, and other styles

31

Peil, Oleg E. "Theory of Disordered Magnets." Doctoral thesis, Uppsala universitet, Institutionen för fysik och materialvetenskap, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-9528.

Full text

Abstract:

Studying magnetic properties of disordered alloys is important both for the understanding of phase transformations in alloys and from the point of view of fundamental issues of magnetism in solids. Disorder in a magnetic system can result in unconventional magnetic structures, such as spin glass, which have rather peculiar features. In this Thesis, a rather general approach to studying disordered magnetic alloys from first principles is presented. Phase transformations and magnetic behavior of crystalline substitutional alloys are considered. This approach is exemplified by calculations of an

APA, Harvard, Vancouver, ISO, and other styles

32

Mohan, Ashwin. "Low-Dimensional Quantum Magnets." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2014. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-155389.

Full text

Abstract:

The field of low-dimensional quantum magnets has received lot of attention owing to the possibility of studying phenomena associated with the quantum nature of matter. Many materials that realize low-dimensional spin arrangements in their structure have been synthesized in the past twenty years due to the emergence and development of crystal growth techniques. These materials have been studied using various experiments in order to explore the wide range of interesting properties predicted theoretically for low-dimensional systems. In this pursuit, novel properties have been observed and many o

APA, Harvard, Vancouver, ISO, and other styles

33

NikoliÄ, Predrag 1974. "Geometrically frustrated quantum magnets." Thesis, Massachusetts Institute of Technology, 2004. http://hdl.handle.net/1721.1/28650.

Full text

Abstract:

Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Physics, 2004.<br>Includes bibliographical references (p. 215-219).<br>(cont.) more general lessons on frustrated quantum magnetism. At the end, we demonstrate some new mathematical tools on two other frustrated two-dimensional systems, and summarize our conclusions, with an outlook to remaining open problems.<br>In this thesis we attempt to reach a physical understanding and theoretical description of some of the greatest challenges in the field of frustrated quantum magnetism, mainly the Kagome lattice antiferromagnets. After a

APA, Harvard, Vancouver, ISO, and other styles

34

Morin, Brian Gerald. "Disorder in molecular magnets." The Ohio State University, 1994. http://rave.ohiolink.edu/etdc/view?acc_num=osu1343230971.

Full text

APA, Harvard, Vancouver, ISO, and other styles

35

Farr, Matthew. "Production of anisotropic injection moulded NdFeB magnets from end-of-life sintered magnets." Thesis, University of Birmingham, 2018. http://etheses.bham.ac.uk//id/eprint/8116/.

Full text

Abstract:

In this work, the hydrogenation-disproportionation-desorption-recombination (HDDR) processing conditions were optimised for scrap sintered NdFeB magnets from hard disk drives (HDDs). The HDDR process was then performed on scrap sintered NdFeB magnets, which were separated from HDD assemblies using hydrogen, on a large scale in order to produce anisotropic NdFeB alloy powder. The HDDR powder was then used to produce injection moulded magnets on pilot scale equipment (5 kg load) at Kolektor Magnet Technology GmbH, Germany. Sintered NdFeB magnets were separated from cropped hard disk drive corner

APA, Harvard, Vancouver, ISO, and other styles

36

De, Silvestri Federica. "Investigation of the magnetic levitation between HTS bulks and permanent magnets." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2018.

Find full text

Abstract:

Lo scopo di questa ricerca è lo studio della levitazione magnetica risultante dall'interazione fra bulk di superconduttori ad alta temperatura critica e magneti permanenti. E' stato realizzato un modello numerico 2D in Comsol che simula l'interazione fra i due componenti, per studiare la forza di levitazione ottenuta. Il modello è stato successivamente validato con i risultati sperimentali ottenuti nei laboratori del dipartimento di Ingegneria dell'Energia Elettrica dell'Università di Bologna, ottenendo un buon riscontro sia per quanto riguarda i valori della forza sia per quanto riguarda le d

APA, Harvard, Vancouver, ISO, and other styles

37

Schneider, Claus M., Daniel E. Bürgler, Peter M. Oppeneer, et al. "Quantitative characterization of nanoscale polycrystalline magnets with electron magnetic circular dichroism." nature publishing group, 2014. http://hdl.handle.net/2237/20835.

Full text

APA, Harvard, Vancouver, ISO, and other styles

38

Dudáš, Juraj. "Návrh synchronního motoru s vnějším rotorem a s permanentními magnety." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2015. http://www.nusl.cz/ntk/nusl-221153.

Full text

Abstract:

The diplomatic thesis will describe the principle functions of synchronous motors with permanent magnets, for therein analysis of PMSM and BLDC motors. We will make calculation of the required parameters from the power unit for glider Discus 2. We will create a design of BLDC and PMSM motor from specified parameters. Features of the proposed engines will be verified with the help of the programs FEMM, RMxprt, Maxwell. At the end of the work will make conclusion about the diplamatic project and diffrences between PMSM and BLDC motor.

APA, Harvard, Vancouver, ISO, and other styles

39

Chen, Hansheng. "Correlating the microstructure, magnetic domain structure, and magnetic properties of rare earth permanent magnets." Thesis, The University of Sydney, 2018. http://hdl.handle.net/2123/18996.

Full text

Abstract:

Rare earth permanent magnets have been broadly integrated into various applications, such as advanced electric motor technologies which partly relieve the current energy crisis worldwide by taking advantages of their extraordinary magnetic properties. Traditional approaches for increasing the intrinsic coercivity (Hci) of rare earth permanent magnets typically come at the expense of remanence, resulting in a reduction of maximum magnetic energy product [(BH)max]. Therefore, novel design and processing strategies are in urgent need to circumvent this trade-off in the advanced rare earth permane

APA, Harvard, Vancouver, ISO, and other styles

40

Castaldi, Lorenzo. "Thin film rare earth magnets." Thesis, University of Sheffield, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.289666.

Full text

APA, Harvard, Vancouver, ISO, and other styles

41

Dakin, Simon John. "Spin fluctuations in metallic magnets." Thesis, University of Southampton, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.359234.

Full text

APA, Harvard, Vancouver, ISO, and other styles

42

Sidambe, Alfred Twala. "Surface engineered polymer bonded magnets." Thesis, Cranfield University, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.427154.

Full text

APA, Harvard, Vancouver, ISO, and other styles

43

Head, David Ian. "Two dimensional Langmuir-Blodgett magnets." Thesis, University of Southampton, 1988. https://eprints.soton.ac.uk/192469/.

Full text

Abstract:

The susceptibility of quasi-two-dimensional magnets formed by the Langmuir-Blodgett deposition of manganese stearate on aluminium foil has been measured at several points between 20 K and 0.4 K. Large area samples of 101 and 11 layers were detected by a SQUID magnetometer. With the magnetic field parallel to the film we deduced an equivalent volume susceptibility of 6.4x10(-3) at 4.2 K. The signals from the multilayers were paramagnetic in nature and no evidence for a transition was found. Unfortunately the signal from a bilayer and monolayer were masked by contaminants on the substrate. The m

APA, Harvard, Vancouver, ISO, and other styles

44

Nicolas, Léa. "Modélisation mathématique des spring magnets." Thesis, Institut polytechnique de Paris, 2020. http://www.theses.fr/2020IPPAX051.

Full text

Abstract:

Cette thèse est consacrée à l'étude de matériaux nanocomposites, qui sont l'approche la plus prometteuse et la plus active pour fabriquer les meilleurs aimants permanents actuellement. Ce type d'aimant est appelé spring magnet.Mathématiquement parlant, l'étude de ces matériaux est difficilecar les modèles habituels sont non linéaires et la dépendance matérielle deles paramètres varient à une très petite échelle. Ainsi, résoudre directement les modèles magnétiques pour ces aimants est irréalisable, car les faibles dimensions des matériaux augmenteraient le nombre de cellules dans le maillage de

APA, Harvard, Vancouver, ISO, and other styles

45

Rehn, Jorge Armando. "Magnets with disorder and interactions:." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2017. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-220572.

Full text

Abstract:

A very important step in the art of cooking up models for the study of natural phenomena is the identification of the relevant ingredients. Taking into account too many details will lead to an overly complicated model, not at all useful to work with, but neglecting some crucial elements will lead to an equally useless model. So it is often the case that the actual experimental situation presents unavoidable sources of local randomness, whilst the analysed phenomenon does not really rely on presence/absence of such imperfections. For some other set of phenomena, however, disorder can play a cru

APA, Harvard, Vancouver, ISO, and other styles

46

Yoo, Jae. "Polynuclear manganese single-molecule magnets /." Diss., Connect to a 24 p. preview or request complete full text in PDF format. Access restricted to UC campuses, 2000. http://wwwlib.umi.com/cr/ucsd/fullcit?p9988317.

Full text

APA, Harvard, Vancouver, ISO, and other styles

47

Andreescu, Radu. "Exchange coupled thin film magnets /." Search for this dissertation online, 2004. http://wwwlib.umi.com/cr/ksu/main.

Full text

APA, Harvard, Vancouver, ISO, and other styles

48

Shinohara, Hajime. "Doping studies of frustrated magnets." Thesis, University of Cambridge, 2018. https://www.repository.cam.ac.uk/handle/1810/276013.

Full text

Abstract:

Doping nonmagnetic materials is known as an effective way of investigating the properties of frustrated magnets. LiCuSbO4 is one of the simplest quasi-one dimensional spin-1/2 magnets which can be modelled with ferromagnetic(FM) nearest neighbour and antiferromagnetic (AFM) next nearest neighbour interactions. Here, doping with both non-magnetic ions, Zn, Mg, and magnetic ions, Co, is investigated. LiCu1-xMxSbO4 (M=Mg, Zn, Co 0≦x≦0.1) samples were synthesized by a ceramics process. At higher doping levels (x≧0.04), paramagnetic Curie features are observed below 4 K, however the broad peak char

APA, Harvard, Vancouver, ISO, and other styles

49

RICCI, ALESSANDRO MARIA. "Superconducting magnets for future accelerators." Doctoral thesis, Università degli studi di Genova, 2020. http://hdl.handle.net/11567/1002038.

Full text

Abstract:

The Large Hadron Collider (LHC) at CERN, which is now in operation for ten years, is not only the largest and more powerful particle accelerator in the world, but also constitutes one of the greatest applications of the superconducting magnet technology. Nevertheless, the need to increase both the luminosity in the next future and the energy in more far future is demanding for the developments of new and more challenging superconducting magnets generating higher magnetic fields. Presently all laboratories worldwide involved in the superconducting magnet technology for accelerators are performi

APA, Harvard, Vancouver, ISO, and other styles

50

Matsumoto, Kenshi. "Crystal Structural Control of Nanomaterials toward High-Performance Permanent Magnets." Kyoto University, 2019. http://hdl.handle.net/2433/245309.

Full text

APA, Harvard, Vancouver, ISO, and other styles

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!