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Dissertations / Theses on the topic 'Trilayers'

Author: Grafiati
Published: 2 June 2025
Last updated: 31 July 2025

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1

Ward, James Michael. "Exchange couplings in magnetic trilayers." Thesis, Imperial College London, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.244164.

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2

Mendus, Thomas. "Structure and magnetic exchange coupling of iron based trilayers." Thesis, University of York, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.286038.

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3

Schanzer, Christian. "Investigation of interlayer exchange coupling in ferro-, antiferro-, ferromagnetic trilayers." [S.l.] : [s.n.], 2006. http://deposit.ddb.de/cgi-bin/dokserv?idn=980313430.

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4

Ives, Andrew J. R. "Polar magneto-optic studies of exchange-coupled ultrathin magnetic trilayers." Thesis, University of Cambridge, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.263525.

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5

Patel, Merul. "Magnetotransport in magnetic multilayers : a study of FeNi/Cu/Co trilayers." Thesis, University of Cambridge, 1994. https://www.repository.cam.ac.uk/handle/1810/251735.

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6

Gaucher, Samuel. "Growth of lattice-matched hybrid semiconductor-ferromagnetic trilayers using solid-phase epitaxy." Doctoral thesis, Humboldt-Universität zu Berlin, 2021. http://dx.doi.org/10.18452/22599.

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Diese Arbeit befasst sich mit dem Wachstum von Dünnschichtstrukturen, die zur Herstellung eines Spin-selektiven Schottky-Barrier-Tunneltransistors (SS-SBTT) erforderlich sind. Das Bauelement basiert auf dem Transport von Ladungsträgern durch eine dünne halbleitende (SC) Schicht, die zwei ferromagnetische (FM) Kontakte trennt. Daher müssen hochqualitative und gitterangepasste vertikale FM/SC/FM-Trilayer gezüchtet werden, was aufgrund der inkompatiblen Kristallisationsenergien zwischen SC und Metallen eine experimentelle Herausforderung darstellt. Das Problem wurde mit einem Festphasenepitaxie-A
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7

Gaucher, Samuel [Verfasser]. "Growth of lattice-matched hybrid semiconductor-ferromagnetic trilayers using solid-phase epitaxy. / Samuel Gaucher." Berlin : Humboldt-Universität zu Berlin, 2021. http://d-nb.info/1231275162/34.

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8

Wei, Yajun. "Ferromagnetic Resonance as a Probe of Magnetization Dynamics : A Study of FeCo Thin Films and Trilayers." Doctoral thesis, Uppsala universitet, Institutionen för teknikvetenskaper, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-247238.

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The high frequency dynamic magnetic responses of FeCo thin films and structures have been investigated mainly using ferromagnetic resonance (FMR) technique. The FMR resonance condition and linewidth are first derived from the dynamic Landau- Lifshitz-Gilbert equation, followed by a study of the conversion between FMR field and frequency linewidths. It is found that the linewidth conversion relation based on the derivative of resonance condition is only valid for samples with negligible extrinsic linewidth contribution. The dynamic magnetic properties obtained by using FMR measurements of FeCo
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9

Addis, Matthew James. "Transitional metal trilayers and films investigated using Brillouin light scattering and the magneto-optic Kerr effect." Thesis, University of Southampton, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.243210.

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10

Hempel, Tobias. "GMR limits for interlayer coupled and pinned trilayers and new concepts for GMR sensors experimental investigations and computer simulation /." [S.l.] : [s.n.], 2006. http://deposit.ddb.de/cgi-bin/dokserv?idn=979388864.

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11

Kehrle, Jan-Michael [Verfasser], and Siegfried R. [Akademischer Betreuer] Horn. "The Fulde-Ferrell Larkin-Ovchinnikov Like State in Bilayers and Trilayers of Superconducting and Ferromagnetic Thin Films / Jan-Michael Kehrle. Betreuer: Siegfried Horn." Augsburg : Universität Augsburg, 2012. http://d-nb.info/107770108X/34.

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12

Novakoski-Fischer, Kenia [Verfasser]. "The impact of atomic and electronic structure modifications on magnetoelastic coupling of epitaxial Fe films and Fe/Au/Fe trilayers investigated by stress measurements / Kenia Novakoski-Fischer." Halle, 2018. http://d-nb.info/1154766160/34.

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13

Khan, Muhammad Yaqoob [Verfasser]. "Probing the antiferromagnetism of NixMn100−x with ferromagnetic Ni in exchange-biased bilayers and trilayers on Cu3Au(001) / Muhammad Yaqoob Khan." Berlin : Freie Universität Berlin, 2012. http://d-nb.info/1027816177/34.

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14

Cela, Devin Artan. "Studies of bilayer and trilayer graphene." Thesis, Massachusetts Institute of Technology, 2013. http://hdl.handle.net/1721.1/83814.

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Thesis (S.B.)--Massachusetts Institute of Technology, Dept. of Physics, 2013.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 69-76).<br>Graphene is a single 2-dimensional atomic layer of hexagonally packed carbon atoms. Graphene has a unique combination of thermal, mechanical, and electronic properties, making it a useful tool for learning new physics as well as a material with high potential for applications. Bilayer graphene (2LG) and trilayer graphene (3LG) share many of the interesting properties of its monolayer relative, but with several key differ
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15

Bari, M. A. "The fabrication of high temperature superconducting trilayer devices." Thesis, University of Cambridge, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.596356.

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In this research we have successfully developed a THS version of the Whole Wafer Process (WWP) to fabricate YBCO/PBCO/YBCO trilayer Josephson junctions using both c-axis and a-axis oriented single crystalline films. As in the case of LTS Niobium-based tunnel junction technology, the planar trilayer technology promises to be a good candidate for HTS electronics. Planar HTS Josephson junctions in the c-axis orientation are thought to be difficult to fabricate due to the low value of the coherence length in the c-direction (ξ<SUB>c</SUB>~0.3 nm) compared to ξ<SUB>ab</SUB>~1.6 nm along the <I>ab</
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16

Ho, Wei Hsuan (Wei Hsuan Jessie). "Design, fabrication and characterization of polypyrrole trilayer actuators." Thesis, Massachusetts Institute of Technology, 2008. http://hdl.handle.net/1721.1/45850.

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Thesis (S.B.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2008.<br>Includes bibliographical references (leaf 48).<br>Conducting polymers are currently studied as artificial muscle materials. They are used instead of traditional actuators because they mimic the movements of animal muscles. They can generate larger active stresses than real muscles as well as generate small strains which can be amplified to cause larger motions. Traditionally, conductive polymers are immersed in liquid electrolytes. Utilizing a trilayer configuration by sandwiching the ions between t
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17

Madzorera, Tatenda Panashe. "A slow-release organophosphate-filled trilayer polyolefin film." Diss., University of Pretoria, 2017. http://hdl.handle.net/2263/66215.

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The development of pyrethroid resistance in mosquitoes threatens the goal of malaria elimination in Africa. Alternative insecticides, e.g. organophosphates, can be considered to control pyrethroid resistant mosquitoes. The problem associated with the deployment of organophosphate-based insecticides is their high volatility. Conventional application forms have a fairly short residual efficacy. This study aimed at extending the residual efficacy of an organophosphate insecticide by using a polymer matrix as a slow release device. A multilayer film blower was used to produce a trilayer film. The
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18

Nworah, Nnamdi Felix. "Fabrication and Characterization of Individually Addressable Polypyrrole Trilayer Microactuators." Thesis, Linköpings universitet, Biosensorer och bioelektronik, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-94278.

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Conjugated polymers are organic polymers that can conduct electricity. They undergo a volume change upon redox reaction and can be used as an active material in some micro- actuator system. Micro-actuators are useful in biomedical and electronic application. We have fabricated a patterned Polypyrrole (PPy) trilayer microactuator device that has individually addressable microactuators (a micro walker) which can operate in air. Furthermore, the PPy trilayer microactuator device is fabricated using standard microfabrication method called photolithography to pattern PPy on PVDF membrane material.
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19

Casao-Perez, J. A. "Edge States and Magnetization in Bernal-Stacked Trilayer Graphene Nanoribbons." Thesis, Sumy State University, 2015. http://essuir.sumdu.edu.ua/handle/123456789/42715.

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We have used a tight-binding Hamiltonian of an ABA-stacked trilayer zigzag graphene nanoribbon with -alignment edges to study the edge magnetizations. Firstly, in the neutral system we analyzed a magnetic state in which both edge magnetizations reach their maximum value; and is characterized by an intralayer ferromagnetic coupling between the magnetizations at opposite edges. The band structure and the location of the edge-state bands are calculated in order to understand the origins of the edge magnetizations. We have also introduced an electron doping so that the number of electrons in th
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20

Khodkov, Tymofiy. "Probing the electrical properties of multilayer graphene." Thesis, University of Exeter, 2012. http://hdl.handle.net/10036/4352.

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Graphene is a new two-dimensional (2D) material with unique electrical transport, optical and mechanical properties. However, monolayer graphene (MLG) is a gapless semiconductor, which limits its relevance for transistor applications where a large on/off ratio of the current is required. In this work the investigation of transport properties of few-layer graphene (FLG) is presented. These 2D electronic systems offer a novel solution to the problem concerned the absence of an energy gap in single layer graphene, since they exhibit an electric field and stacking-dependent band gap in the energy
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21

Georgieva, Milena Todorova. "Magnetization reversal and tunnelling in nitrogen doped Fe/insulator/Fe trilayer structures." Thesis, University of Salford, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.400831.

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22

Winterer, Felix Simon [Verfasser], and Thomas [Akademischer Betreuer] Weitz. "Spontaneous symmetry-breaking in trilayer graphene / Felix Simon Winterer ; Betreuer: Thomas Weitz." München : Universitätsbibliothek der Ludwig-Maximilians-Universität, 2021. http://d-nb.info/1234912031/34.

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23

Atwa, Mohamed. "Chemical Vapor Deposition Growth and Density Functional Theory Calculations of Trilayer Graphene." Thesis, KTH, Skolan för informations- och kommunikationsteknik (ICT), 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-206117.

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Density functional theory was employed to investigate the energetics of ABA, ABC, and intermediary stacked phases for both pristine and s-triazine functionalized graphene trilayers. The energy of the ABC-stacked phase relative to the pristine ABA-stacked ground state showed a 94% increase when s-triazine was adsorbed to the graphene surface, confirming previous studies of the ability of s-triazine to facilitate the ABC to ABA phase-transition. This work is outlined in an enclosed publication titled “Trilayer Graphene as a Candidate Material for Phase Change Memory Applications.” Subsequently,
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24

Stepanov, Petr. "Spin and Charge Transport in Monolayer and Trilayer Graphene in the Quantum Hall Regime." The Ohio State University, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=osu1532103607994675.

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25

Alwusaydi, Huda Abdulaziz. "LINE TENSION ASSOCIATED WITH THE MONOLAYER/TRILAYER BOUNDARY OF 8CB AT THE AIR-WATER INTERFACE." Kent State University / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=kent1496412951160797.

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26

Sena, Silvia Helena Roberto de. "Propriedades eletrônicas de tricamada de grafeno e nanofitas de carbono tensionadas." reponame:Repositório Institucional da UFC, 2012. http://www.repositorio.ufc.br/handle/riufc/13671.

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SENA, Silvia Helena Roberto de. Propriedades eletrônicas de tricamada de grafeno e nanofitas de carbono tensionadas. 2012. 112 f. Tese (Doutorado em Física) - Programa de Pós-Graduação em Física, Departamento de Física, Centro de Ciências, Universidade Federal do Ceará, Fortaleza, 2012.<br>Submitted by Edvander Pires (edvanderpires@gmail.com) on 2015-10-15T18:11:54Z No. of bitstreams: 1 2012_tese_shrsena.pdf: 15892821 bytes, checksum: ed3de1e000d2b9d87efc866ee0064b8f (MD5)<br>Approved for entry into archive by Edvander Pires(edvanderpires@gmail.com) on 2015-10-21T20:35:21Z (GMT) No. of bitstre
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27

Li, Haoxiang. "Angle-Resolved Photoemission Spectroscopy Study of High Temperature Superconductor Cuprate, and Potential High Temperature Superconductors K-Doped p-Terphenyl and Trilayer Nickelate." Thesis, University of Colorado at Boulder, 2018. http://pqdtopen.proquest.com/#viewpdf?dispub=10642070.

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<p>The macroscopic quantum phenomenology of superconductivity has attracted broad interest from both scientific research and applications. Many exotic physics found in the first high $T_C$ superconductor family cuprate remain unsolved even after 30 years of intense study. Angle-Resolved Photoemission Spectroscopy (ARPES) provides the direct probe to the major information of the electronic interactions, which plays the key role in these exotic physics including high $T_C$ superconductivity. ARPES is also the best tool to study the electronic structure in materials that potentially hold high $T_
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28

Taychatanapat, Thiti. "From Hopping to Ballistic Transport in Graphene-Based Electronic Devices." Thesis, Harvard University, 2013. http://dissertations.umi.com/gsas.harvard:10815.

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This thesis describes electronic transport experiments in graphene from the hopping to the ballistic regime. The first experiment studies dual-gated bilayer graphene devices. By applying an electric field with these dual gates, we can open a band gap in bilayer graphene and observe an increase in resistance of over six orders of magnitude as well as a strongly non-linear behavior in the transport characteristics. A temperature-dependence study of resistance at large electric field at the charge neutrality point shows the change in the transport mechanism from a hopping dominated regime at low
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29

Sena, Silvia Helena Roberto de. "Propriedades eletrÃnicas de tricamada de grafeno e nanofitas de carbono tensionadas." Universidade Federal do CearÃ, 2012. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=8961.

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CoordenaÃÃo de AperfeiÃoamento de Pessoal de NÃvel Superior<br>Grafeno à um cristal bidimensional cujo espectro eletrÃnico a baixas energias (E <1 eV) apresenta dispersÃo linear e ausÃncia de gap que, juntamente com a natureza quiral dos portadores de carga, sÃo responsÃveis por uma variedade de propriedades incomuns. Como resultado da sua natureza singular, um grande esforÃo tem sido feito para entender todas as suas propriedades fundamentais e tentar gerar uma nova tecnologia baseada nesse material. Nesta tese, nÃs realizamos um estudo teÃrico de dois tipos de sistemas: nanofitas de grafeno
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30

Bruno, François. "Optimisation des modes de Lamb à vitesse de groupe nulle engendrés par laser et évaluation locale de structures collées." Thesis, Sorbonne Paris Cité, 2017. http://www.theses.fr/2017USPCC147/document.

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Les structures planes supportent la propagation de modes de Lamb, dont certains présentent une vitesse de groupe nulle et une vitesse de phase finie. Ces modes ZGV, favorablement engendrés et détectés par ultrasons laser, donnent lieu à des résonances locales étroites qui sont sensibles à l'épaisseur, aux propriétés élastiques et aux conditions de surface. Dans le premier volet de cette thèse, l'optimisation spatiale de la source laser (Faisceau rectangle ou Gaussien, anneau à profil rectangle ou Gaussien obtenu à l'aide d'un axicon) est étudiée afin d'améliorer la génération d'un mode de Lamb
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31

Poumirol, Jean-Marie. "Etude des propriétés électroniques du graphène et des matériaux à base de graphène sous champs magnétiques intenses." Thesis, Toulouse, INSA, 2011. http://www.theses.fr/2011ISAT0012/document.

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Cette thèse présente des mesures de transport électronique dans des systèmes bi-dimensionels et uni-dimensionels à base de graphène sous champ magnétique pulsé (60T). L'objectif de ces travaux consiste à sonder la dynamique des porteurs de charge en modifiant la densité d'états du système par l'application d'un champ magnétique. Une première partie est consacrée à l'étude de l'influence des îlots électrons-trous sur les propriétés de transport du graphène au voisinage du point de neutralité de charge. Nous avons constaté l'apparition de fluctuations de la magnéto-résistance liée à la transitio
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32

Bou, Adrien. "Electrodes multifeuillets de type oxyde/métal/oxyde à transparence accordable pour cellules solaires organiques." Thesis, Aix-Marseille, 2015. http://www.theses.fr/2015AIXM4367.

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Parmi les filières de cellules photovoltaïques, les cellules solaires organiques suscitent un intérêt industriel par leur faible coût financier et de production énergétique et leur application possible sur des substrats flexibles de type plastique. L'ITO (Indium Tin Oxide) est l'électrode transparente conductrice (ETC) la plus utilisée pour ces cellules ainsi que pour d'autres dispositifs optoélectroniques. Cependant, ce matériau n'est pas sans présenter certains inconvénients (rareté de l'indium, structure non adaptée à des substrats flexibles,…), et la recherche d'alternatives à l'ITO est un
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33

Bonneau-Brault, Aurélien. "Multicouches magnétiques à fréquences de résonance ajustable pour applications hyperfréquences." Thesis, Tours, 2013. http://www.theses.fr/2013TOUR4034/document.

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Cette thèse avait pour objectif d'augmenter la fréquence de travail d'un multicouche magnéto-diélectrique pour des applications des Nouvelles Technologies de l'Information et de la Communication (NTIC). Ainsi, deux types de structures ont été étudiés : des multicouches (CoO=CoFeB)n et des tricouches Py/Ru/Py. Dans les empilements (CoO=CoFeB)n, la montée en fréquence est assurée par une anisotropie de surface du CoFeB induite par une rugosité orientée à la surface de la couche CoO. Cette rugosité est générée par la géométrie de dépôt. La fréquence de résonance de ce système est ajustable sur to
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34

Bou, Adrien. "Electrodes multifeuillets de type oxyde/métal/oxyde à transparence accordable pour cellules solaires organiques." Electronic Thesis or Diss., Aix-Marseille, 2015. http://www.theses.fr/2015AIXM4367.

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Parmi les filières de cellules photovoltaïques, les cellules solaires organiques suscitent un intérêt industriel par leur faible coût financier et de production énergétique et leur application possible sur des substrats flexibles de type plastique. L'ITO (Indium Tin Oxide) est l'électrode transparente conductrice (ETC) la plus utilisée pour ces cellules ainsi que pour d'autres dispositifs optoélectroniques. Cependant, ce matériau n'est pas sans présenter certains inconvénients (rareté de l'indium, structure non adaptée à des substrats flexibles,…), et la recherche d'alternatives à l'ITO est un
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35

Shih, Wen-Tai, and 施文泰. "Studies of physical properties of Nb/Co trilayers." Thesis, 1999. http://ndltd.ncl.edu.tw/handle/18373606864885640950.

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碩士<br>輔仁大學<br>物理學系<br>87<br>Single Nb films, Nb/Co/Nb and Co/Nb/Co trilayers were grown on Si(100) substrates at room temperature by dc sputtering method. We discussed their superconductivity from the resistive and magnetic properties. The main measuring instruments we used were low temperature resistance measuring system and SQUID magnetometer. We observed that with increasing dNb, the value of superconducting transition temperature Tc increases monotonically, before eventually close to the terminal value of Tc~9.2K for pure bulk Nb as dNb≧4000A. This was related to the finite-size
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36

施名遠. "Ferromagnetic Resonance studies on NiFe/Cu/NiFe magnetic trilayers." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/48589896199569941930.

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碩士<br>國立臺灣師範大學<br>物理學系<br>98<br>Giant magnetoresistance (GMR) effect of trilayer (FM/NM/FM) and multilayers are mainly result of RKKY coupling phenomenon. In the thesis, we assume a free energy model of NiFe/Cu/NiFe trilayer. The free energy is consist of following terms: crystal field, anisotropy energy, exchange energy and magneto static energy. A angular resolved ferromagnetic resonance, magneto-resistance and vibrating sample magnetometer measurement were performed. Through fitting of FMR data, we obtained uniaxial anisotropy constant, coupling energy and damping constant. For the research
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37

Hsing, Meng-Kai, and 幸盟凱. "Studies of magnetism and mgnetoresistance in Py╱Ru╱Py trilayers." Thesis, 2002. http://ndltd.ncl.edu.tw/handle/z25wat.

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碩士<br>國立成功大學<br>物理學系碩博士班<br>90<br>By molecular beam epitaxy (MBE), the author has prepared high-quality NiFe80Fe20 / Ru / NiFe80Fe20 trilayers with different spacer (Ru) thickness on Al2O3(11-20) substrates. This thesis study on the magnetoresistance effect and the oscillation behavior of antiferromagnetic coupling as a function of the Ru thickness in Ni80Fe20╱Ru╱Ni80Fe20 trilayers. The oscillation of the interlayer coupling as a function of the spacer thickness and the giant magnetoresistance effect have been extensively studied in recent years. In particular, Fe/Cr, Co/Cr, Co/Cu systems have
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38

Schanzer, Christian [Verfasser]. "Investigation of interlayer exchange coupling in ferro-, antiferro-, ferromagnetic trilayers / Christian Schanzer." 2006. http://d-nb.info/980313430/34.

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39

Dawson-Elli, David F. "On the processing of NbN-insulator-NbN trilayers for Josephson junction applications." 1993. http://catalog.hathitrust.org/api/volumes/oclc/29042403.html.

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Thesis (Ph. D.)--University of Wisconsin--Madison, 1993.<br>Typescript. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 138-142).
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40

Wu, Yu-Cheng. "Study of magnetic properties on TiO2/Co/TiO2 and Co/TiO2/Co trilayers." 2007. http://www.cetd.com.tw/ec/thesisdetail.aspx?etdun=U0001-2807200720102200.

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41

Wu, Yu-Cheng, and 吳宇正. "Study of magnetic properties on TiO2/Co/TiO2 and Co/TiO2/Co trilayers." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/84736827477773927609.

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碩士<br>臺灣大學<br>物理研究所<br>95<br>In this thesis, a series of TiO2/Co/TiO2 trilayer samples were synthesized by high vacuum based co-sputtering in a RF magnetron system. The samples were grown on the Si(100) substrates. We try to synthesize the Co doped TiO2 dilute magnetic semiconductor structure via thermal treatments under vacuum environment, and study its magnetic property. The results reveal that during thermal treatments in a vacuum environment, the Co grains may form the oxide phase structure, and lose their magnetic properties. In the second part, we synthesize a series of Co/TiO2/Co t
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42

Lin, Shih-che, and 林士哲. "Magnetic Compensation and Interfacial Coupling in Ferrimagnetic Spinel Oxide Fe3O4/Mn3O4/Fe3O4 Trilayers." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/41584184823177976691.

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碩士<br>國立中正大學<br>物理所<br>98<br>Fe3O4 and Mn3O4 are the most typical spinel ferrimagnetic oxides. The magnetic coupling between Fe3O4 and Mn3O4 has been studied through superlattices but with relatively smaller length scale of each constituent layer. In this thesis, a Fe3O4/Mn3O4/Fe3O4 trilayered structure on MgO(001), MgO(011) and STO(001) substrates, fabricated by molecular beam epitaxy(MBE), provides a simple system to test the magnetic response to a much larger length scale. These trilayered structure have been also characterized by X-ray diffraction(XRD) and scanning electron microscopy(
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Wu, Po-Tsang, and 吳柏蒼. "Studies of the Epitaxial Growth and Magnetic Coupling of Ni80Fe20/Ir(111)/Ni80Fe20 Trilayers." Thesis, 2003. http://ndltd.ncl.edu.tw/handle/77370904764406351426.

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碩士<br>國立成功大學<br>物理學系碩博士班<br>91<br>The molecular beam epitaxy (MBE) growth fcc(111) oriented Ni80Fe20/Ir/ Ni80Fe20 trilayers were prepared to study the interlayer exchange coupling. We found that Ni80Fe20/Ir (tIr Å)/ Ni80Fe20 (tIr = 5~40) sandwich exhibit anomalous oscillatory exchange coupling strength. The antiferromagnetic (AF) peaks appear at tIr =7, 19, 28, 40 Å, and the maxima AF coupling strength is about 2.32 erg/cm2 with tIr =7 Å, however, the oscillation period is not the same, may course by the superposition of the spanning vector of the complicated Ir(111) Fermi surface.
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Wang, Chih-Hsiung, and 王志雄. "Combination of Exchange-Bias and Long-Range Interlayer Coupling in Fe/Fct-Mn/Co Trilayers." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/98536547660046428838.

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碩士<br>國立臺灣師範大學<br>物理學系<br>99<br>In order to study the combination of exchange bias coupling and long range interlayer coupling, the Fe/fct-Mn/Co trilayers was grown on a single crystal of Cu(100). Low energy electron diffraction (LEED) and I-V LEED were used to check the crystalline structures of fct-Co and fct-Mn. We also used magnetic optical kerr effect (MOKE) to get a series of magnetic hysteresis loops with a function of Mn and Fe. When the thickness of Mn was increased to 24ML, the magnetic hysteresis loop became two-step loop with a special feature, because the Co and Fe moments un
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Hung, Chin-Tsang, and 洪志蒼. "The Effects of SiNx Underlayer’s Stress Status on Magnetic and Recording Properties of SiNx/TbFeCo/SiNx Trilayers." Thesis, 2003. http://ndltd.ncl.edu.tw/handle/52509898538694919245.

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碩士<br>國立交通大學<br>材料科學與工程系<br>91<br>This work studied the effects of stress statuses of SiNx underlayer on the magnetic and recording properties of SiNx/TbFeCo/SiNx trilayers. By adjusting the deposited parameters of SiNx underlayer, such as working pressure, Ar/N2 ratio, and thickness, the TbFeCo might exhibit strong perpendicular anisotropy when SiNx underlayer possessed large compressive stress. We also found that the compressive stress enhanced the coercivity squareness of TbFeCo. The observation of initial M-H curves revealed that the switching mechanism of TbFeCo strongly depend
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Lan, Tien-Chi, and 藍天琪. "The microstructural and magnetic characterization in NiFe/CoO/Co trilayers and ion-beam bombarded NiFe/Fe-oxide bilayers." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/9twyks.

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碩士<br>國立中興大學<br>材料科學與工程學系所<br>101<br>Exchange bias (EB) is the term used to describe the unidirectional anisotropy found in a ferromagnet (FM) exchanged-coupled to an antiferromagnet (AFM). In this research, a dual ion-beam deposition technique was used to prepare the NiFe/CoO/Co trilayers with different CoO thicknesss and NiFe/Fe-oxide bilayers for ion-beam bombardment. Results have shown that the trilayer consisted of f.c.c. NiFe, roak-salt CoO, and h.c.p. Co structures. At room temperature, the NiFe/CoO/Co trilayers exhibited soft magnetic properties with coercivity close to those of refere
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于冠禮. "Study of structure and the magnetic coupling of permalloy/Cr/permalloy trilayers using polarized neutron reflectivity and X-ray scattering." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/s7gu94.

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博士<br>國立清華大學<br>工程與系統科學系<br>92<br>The magnetic coupling between two permalloy layers with Cr separating layer was studied using longitude magneto-optical Kerr effect measurement (LMOKE), polarized neutron and X-ray diffraction XRD. The coupling between two permalloy layers is antiferromagnetic-like when the Cr thickness is near 2.4 nm along the easy axis. A strong biquadratic coupling term has been found from the polarized neutron reflectivity study. The strong biquadratic coupling may be caused by the rough interface between the permalloy and Cr layers. The coupling strength is getting strong
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Rodríguez, Hernán [Verfasser]. "Electronic transport properties of YBa2Cu3O7-x, PrBa2Cu2.9Ga0.1O7-y trilayers and superlattices perpendicular to the layer structure / vorgelegt von Hernán Rodríguez." 2004. http://d-nb.info/975975242/34.

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Hempel, Tobias [Verfasser]. "GMR limits for interlayer coupled and pinned trilayers and new concepts for GMR sensors : experimental investigations and computer simulation / vorgelegt von Tobias Hempel." 2006. http://d-nb.info/979388864/34.

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Samal, Debakanta. "On The Magnetic And Magnetotransport Studies Of Cobaltates And Superconductor/ Ferromagnet Heterostructures." Thesis, 2010. https://etd.iisc.ac.in/handle/2005/1251.

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The study of the co-existence of singlet superconductivity and ferromagnetism in bulk materials has been a long standing and intriguing problem in condensed matter physics since the superconductivity and ferromagnetism are quantum mechanically antagonistic to each other (i.e. parallel alignment of spins in the ferromagnet and Cooper pairs with oppositely aligned spins in the superconductor).Though it is incompatible to have the coexistence of singlet superconductivity and ferromagnetism in bulk compound, it is highly possible to artificially fabricate superconductor (S)/ferromagnet (F) heteros
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