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Dissertations / Theses on the topic 'Magnetic properties of solids'

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1

Obertelli, S. D. "Magnetic properties of low-dimensional solids." Thesis, University of Cambridge, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.305925.

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2

Coomber, Andrew Treeve. "Magnetic and electrical properties of low dimensional molecular solids." Thesis, University of Cambridge, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.387616.

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3

Harrison, W. T. A. "Structural and magnetic properties of some mixed metal oxides." Thesis, University of Oxford, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.379947.

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4

Ranmohotti, Kulugammana G. S. "Synthesis, structure and magnetic properties of oxy-anion based magnetic solids containing transition metal oxide nanostructures." Connect to this title online, 2008. http://etd.lib.clemson.edu/documents/1233347528/.

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5

Harrison, Richard John. "Magnetic properties of the magnetite-spinel solid solution." Thesis, University of Cambridge, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.603779.

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The intrinsic magnetic properties of Fe-bearing solid solutions with the "spinel" crystal structure are determined to a large extent by the processes of non-convergent cation ordering and subsolvus exsolution. The aim of this dissertation is to investigate the interaction between these processes and the magnetic properties of the magnetite-spinel solid solution, with a view to assessing how these factors might influence the acquisition of natural remanent magnetization in other Fe-bearing solid solutions. Temperature and compositional variations in the state of non-convergent cation order are
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6

Petit, Leon. "Screened real-space Korringa-Kohn-Rostoker description of the magnetic properties of solids." Thesis, University of Sheffield, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.310727.

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7

Bertrand, Renee. "Magnetic properties of asbestos." Thesis, Open University, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.235729.

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8

Horsfall, Alton Barrett. "Electrical and magnetic properties of II-VI diluted magnetic semiconductors." Thesis, Durham University, 1997. http://etheses.dur.ac.uk/4984/.

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The electrical and magnetic properties of MOVPE grown epitaxial layers of Hg(_1-x)Mn(_x)Te layers has been investigated using a number of techniques. The samples have been grown by the Inter Diffused Multilayer Process, (IMP) on (100) semi insulating GaAs substrates with ZnTe and CdTe buffer layers. The samples have been shown to show a number of phenomena nopt observed in the bulk material, such as an anomaly in the resistivity, rnagnetoresistance related to the intrinsic magnetism of the material, and saturation of the room temperature magnetisation. In general the samples are of a highly co
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9

Lambrick, David Brynne. "Magnetic properties of metallic fine particle systems." Thesis, Durham University, 1986. http://etheses.dur.ac.uk/7087/.

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A study of the magnetic properties of metallic fine particle systems in the form of magnetic fluids has been made. The fluids were prepared utilising the organometallic decomposition route (detailed separately by N. Mason, Ph.D. thesis, Durham University 1986) and single metal systems containing Fe, Co and Ni were prepared from new precursors. The properties of the first hydrocarbon based mixed metal particle systems are also reported. For systems prepared with Fe precursors it is thought that the fine particles are not in the α-Fe phase but may be amorphous and/or consist of iron carbides. Co
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10

Thompson, Sarah M. "The magnetic properties of plastically deformed steels." Thesis, Durham University, 1991. http://etheses.dur.ac.uk/3600/.

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This study concentrates on low carbon pearlitic steels. Two sets of experiments are carried out, the first on a section of semi-killed gas pipe and the second on specially prepared alloys of iron and carbon with pearlite fractions varying from 0.19% to 100%. Their magnetic properties are studied both in the as received state and after tensile plastic deformation. In addition, four different heat treatments are applied to the low carbon steel. Standard magnetisation and fluxmeter techniques are used to determine the bulk magnetic properties, with further use of a vibrating sample magnetometer f
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11

Stanley, H. B. "Magnetic properties of rare-earth single crystals." Thesis, University of Southampton, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.356720.

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12

Simpson, John Andrew. "Magnetic properties of rare-earth elements and superlattices." Thesis, University of Oxford, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.308539.

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13

Cook, A. J. "Electrical and magnetic properties of high temperature superconductors." Thesis, University of Oxford, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.240538.

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14

Bentall, Mark J. "Structure and magnetic properties of thin films and superlattices." Thesis, University of Oxford, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.269864.

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15

Walker, Michelle. "Modelling of the magnetic properties of fine particle systems." Thesis, Bangor University, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.303081.

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16

Gregory, Christopher Ian. "Magnetic properties of the itinerant helimagnets MnSi and FeGe." Thesis, Durham University, 1992. http://etheses.dur.ac.uk/6057/.

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This thesis describes high quality magnetisation measurements made on single crystals of MnSi, FeGe and ZrZn(_2) using a vibrating sample magnetometer. The measurements on MnSi have also been complemented with neutron scattering experiments. MnSi is a heavily investigated itinerant helimagnet which exhibits a variety of interesting phenomena associated with formation of a helical spin density wave propagating along < 111 > directions. Magnetisation measurements were performed as a function of magnetic field at fixed temperatures stepping through the magnetic transition observed at 29.1 ± 0.05K
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17

Al-Jiboory, Muhammed Mekki. "Magnetic and microstructural properties of single crystal terfenol-D." Thesis, University of Salford, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.333993.

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18

Yoshizawa, Kazunari. "STUDIES ON ELECTRONIC AND MAGNETIC PROPERTIES IN SOLID STATE CHEMISTRY." Kyoto University, 1992. http://hdl.handle.net/2433/168752.

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本文データは平成22年度国立国会図書館の学位論文(博士)のデジタル化実施により作成された画像ファイルを基にpdf変換したものである<br>Kyoto University (京都大学)<br>0048<br>新制・課程博士<br>博士(工学)<br>甲第5090号<br>工博第1211号<br>新制||工||864(附属図書館)<br>UT51-92-J137<br>京都大学大学院工学研究科分子工学専攻<br>(主査)教授 山邊 時雄, 教授 清水 剛夫, 教授 藤本 博<br>学位規則第4条第1項該当
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19

Bouvier, Philippe. "The magnetic and magneto-optic properties of sputtered granular layers." Thesis, Coventry University, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.318531.

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20

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.

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21

Bryn-Jacobsen, Caelia. "The structural and magnetic properties of rare-earth alloys and superlattices." Thesis, University of Oxford, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.361887.

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22

Chapman, James R. "Optical properties of highly correlated electron systems in a magnetic field." Thesis, University of Oxford, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.389008.

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23

Lawless, Martin John. "Magneto-optical properties of strained layer and dilute magnetic semiconductor superlattices." Thesis, University of Oxford, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.334257.

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24

Greaves, Simon John. "Magnetic, magneto-optic and microstructural properties of Pt/Co multilayer films." Thesis, University of Salford, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.333969.

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25

Purdy, Jonathan Harry. "The magnetic and magnetoelastic properties of amorphous rare earth metal metal alloys." Thesis, University of Hull, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.259781.

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26

Butler, David. "The preparation and magnetic properties of melt spun terbium-iron-boron alloys." Thesis, University of Hull, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.328839.

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27

Hawton, M. J. "An investigation of anisotropic magnetic properties of rare earth iron boron alloys." Thesis, Durham University, 1987. http://etheses.dur.ac.uk/6758/.

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In 1983 Sumitomo in Japan and General Motors in the USA both announced the production of new 'super magnets' based on a rare earth iron boron mixture. The Sumitomo magnets are based on an intermetallic compound with a composition Nd(_2)Fe(_14)B. This thesis describes an Investigation towards understanding the reason why permanent magnets made from this material have such favourable magnetic properties. A description is given of a new type of torque magnetometer designed to operate within the bore of a superconducting solenoid to make measurements at a field high enough for this type of materia
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28

Papakonstantinou, Pagona. "Magnetic, optical and magneto-optical properties of Co/Ti substituted barium hexaferrite." Thesis, Queen's University Belfast, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.241427.

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29

Williams, Paul Ieuan. "The magnetic and magnetostrictive properties of rare earth - transition metal alloy films." Thesis, University of Salford, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.315402.

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30

Baskar, Dinesh. "High temperature magnetic properties of transition metal oxides with perovskite structure /." Thesis, Connect to this title online; UW restricted, 2008. http://hdl.handle.net/1773/9812.

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31

Tzou, Der-Lii M. "Solid state 13C NMR studies of the Morphology and orientational order of polymer fibers." Diss., Georgia Institute of Technology, 1991. http://hdl.handle.net/1853/30276.

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32

El-Hilo, Mohammad. "The effects of magnetostatic interactions on the properties of magnetic fine particle systems." Thesis, Bangor University, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.276175.

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33

Yi, Zhu-an. "The preparation and magnetic properties of melt-textured RBa←2Cu←3O←x superconductors." Thesis, University of Southampton, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.261621.

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34

Yamada, Takashi. "Basic properties of Dual Reciprocity Boundary Element Method and applications to magnetic field analysis." Thesis, University of Portsmouth, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.240420.

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35

Atzori, Matteo. "Anilate-based Functional Molecular Materials with Conducting and Magnetic Properties." Thesis, Angers, 2015. http://www.theses.fr/2015ANGE0009/document.

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Ce travail de thèse explore la capacité des ligands anilates d’être employés pour la préparation de nouveaux matériaux moléculaires fonctionnels avec des propriétés magnétiques et de conduction électrique. Les anilates, qui sont les dérivés du 2,5-dihydroxy-1,4- benzoquinone substitués sur les positions 3 et 6, ont été sélectionnés comme ligands puisque leurs caractéristiques électroniques et structurales, leurs modalités de coordination et leur capacité de médiation des interactions de super-échange magnétique en font d’excellents ligands pour la préparation de ces matériaux. Plusieurs ligand
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36

Newnham, Sharon. "Studies of the microstructure and magnetic properties of Nd-Fe-B based permanent magnet materials." Thesis, University of Oxford, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.260188.

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37

Adnan, Johari Bin. "Development of instruments for the study of magnetic properties of recording materials, minerals and rocks." Thesis, University of Newcastle Upon Tyne, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.316241.

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38

Marques, Marcelo. "Estudo teórico das ligas quaternárias semicondutoras AlxGayIn1-x-yX (X=As, P ou N) e do sistema semicondutor magnético (Ga,Mn)N." Universidade de São Paulo, 2005. http://www.teses.usp.br/teses/disponiveis/43/43134/tde-07032014-145041/.

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Este trabalho pode ser dividido em duas partes. Na primeira, estudamos a série de ligas quaternárias \'Al IND. x\'\'Ga IND. y\'\'In IND. 1-x-y\'As, \'Al IND. x\'\'Ga IND. y\'\'In IND. 1-x-Y\', e \'Al IND. x\'\'Ga IND. y\'\'In IND. 1-x-y\'N. Estes sistemas são muito importantes do ponto de vista tecnológico, principalmente na optoeletrônica. O estudo é feito através de cálculos de estrutura eletrônica baseados na teoria do funcional da densidade (TFD) (com o uso de pseudopotenciais ultrasuaves) combinados com métodos estatísticos, como o Monte Carlo e o método da Abordagem Quase-Química General
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39

Dungate, David George. "A theoretical study of the magnetic and superconducting properties of strongly interacting d and f electron systems." Thesis, University of Cambridge, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.239615.

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40

Richard, Laura Amanda. "A study of the crystallographic, magnetic and electronic properties of selected ZrM2-H systems." Thesis, University of Oxford, 2011. http://ora.ox.ac.uk/objects/uuid:276c59fe-cf45-42d2-a5a0-8c534c8b46bd.

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Dissolution of hydrogen into intermetallic compounds characteristically occurs at interstitial sites, causing little alteration to the base metal substructure but often bringing about substantial electronic and magnetic changes to the material. These hydrogen-induced alterations in the intermetallic hydrides are of interest both on a fundamental research level and in terms of technological applications; however, there exists no general theory as to how and why these alterations arise. The objective of this research is to elucidate to general effect of hydrogen on intermetallic compounds throug
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41

Pan, Genhua. "Investigation into the microstructure, magnetic properties and read/write performance of thin-film media for perpendicular recording computer disks." Thesis, University of Plymouth, 1993. http://hdl.handle.net/10026.1/2363.

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Pronounced effect of under layers on the squareness and slope T of the perpendicular loops of very thin CoCr films was observed. Experimental and theoretical studies suggest that, depending on the film microstructure, there are two origins on the anomalous shearing of perpendicular loops of Cc-based perpendicular films: the columnar shape anisotropy and the wall-motion-like magnetization reversal process. For films with larger intercolumnar separation, the contribution of the columnar shape anisotropy to the total demagnetizing factor is mainly responsible for the deshearing of the loops. For
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42

Huang, Mantao. "Voltage control of electrical, optical and magnetic properties of materials by solid state ionic transport and electrochemical reactions." Thesis, Massachusetts Institute of Technology, 2020. https://hdl.handle.net/1721.1/127898.

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Thesis: Ph. D., Massachusetts Institute of Technology, Department of Materials Science and Engineering, May, 2020<br>Cataloged from the official PDF of thesis.<br>Includes bibliographical references (pages 139-153).<br>Reversible post-fabrication control of material properties enables devices that can adapt to different needs or environmental conditions, and brings additional levels of functionality, paving the way towards applications such as reconfigurable electronics, reconfigurable antennas, active optical devices and energy efficient data storage. One promising way of achieving the contro
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43

Akintunde, Babajide O. "A study on the effect of Fe-Ni variation on the magnetocaloric properties of Mn0.5Fe0.5+xNi1-xSi0.94Al0.06 and Mn0.5Fe0.5-xNi1+xSi0.94Al0.06 systems." Miami University / OhioLINK, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=miami16267284137581.

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44

Esters, Marco. "Experimental and Computational Investigations of Kinetically Stable Selenides Synthesized by the Modulated Elemental Reactants Method." Thesis, University of Oregon, 2018. http://hdl.handle.net/1794/23175.

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The controlled and targeted synthesis of new solid materials is still a challenge difficult to overcome. Slow diffusion rates and long diffusion lengths require long reaction times and high synthesis temperatures, resulting in limited control over the reaction pathway. The Modulated Elemental Reactants (MER) method uses compositionally modulated precursors with atomically thin elemental layers that form amorphous alloys upon annealing while maintaining composition modulation. In this amorphous intermediate, nucleation, not diffusion, control the formation of the product, enabling kinetic contr
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45

Chaudhary, Praveen, and University of Lethbridge Faculty of Arts and Science. "Lewis-acid and fluoride-ion donor properties of SF₄ and solid-state NMR spectroscopy of Me₃SnF." Thesis, Lethbridge, Alta. : University of Lethbridge, Dept. of Chemistry and Biochemistry, c2011, 2011. http://hdl.handle.net/10133/2621.

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Trimethyltin fluoride (Me3SnF) is a useful fluorinating agent in organometallic chemistry. Its solid-state structure has been investigated by X-ray crystallography showing a polymeric fluorine-bridged structure. Disorder, however, has precluded the accurate refinement of all structural parameters. In order to obtain accurate structural information, trimethyltin fluoride was investigated using high-resolution 13C, 19F, and 119Sn solid-state NMR spectroscopy using a four-channel HFXY capability. The 119Sn{1H} solid-state NMR spectrum agrees with pentacoordination about Sn in this compound. The h
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46

Mastrogiacomo, Giovanni. "Development of Fe-based metallic glasses via destabilization of the solid state and characterization of their magnetic and electrical properties /." Zürich : ETH, 2008. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=17634.

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47

Schliesser, Jacob M. "Development and Application of New Solid-State Models for Low-Energy Vibrations, Lattice Defects, Entropies of Mixing, and Magnetic Properties." BYU ScholarsArchive, 2016. https://scholarsarchive.byu.edu/etd/5841.

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Low-temperature heat capacity data contain information on the physical properties of materials, and new models continue to be developed to aid in the analysis and interpretation of heat capacity data into physically meaningful properties. This work presents the development of two such models and their application to real material systems. Equations describing low-energy vibrational modes with a gap in the density of states (DOS) have been derived and tested on several material systems with known gaps in the DOS, and the origins of such gaps in the DOS are presented. Lattice vacancies have been
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48

Drew, Daniel L. Jr. "Investigating the Structure and Dynamic Properties of Bacteriophage S21 Pinholin Using Solid-State Nuclear Magnetic Resonance and Electron Paramagnetic Resonance Spectroscopy." Miami University / OhioLINK, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=miami1610187893016095.

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49

Lafuente, Hernández Mª Pilar. "Computational Study of the Mechanisms that Stabilize Organic Molecule‐Based Magnets." Doctoral thesis, Universitat de Barcelona, 2016. http://hdl.handle.net/10803/400864.

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The objective of this PhD thesis has been the study of the mechanisms that stabilize high-spin states in organic molecule-based magnetic materials. These materials require organic radicals with permanent magnetic moment as building units. Additionally, these molecules need to interact ferromagnetically, and expand that interaction along all three directions of the space. We have carried out our studies using computational chemistry techniques, mostly ab- initio methods (MP2, CASSCF and CASMP2), and DFT-based methods (B3LYP or M06L). Besides, we have also used the hybrid Molecular Mechanics
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50

Yates, Damian Leonard. "An investigation into the effects of different annealing conditions on the magnetic properties of overload La←2←-←xSr←xCuO←4←-←#←d←e←l←t←a←#." Thesis, University of Bristol, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.385683.

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