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The behavior and properties of ferroelectric single crystals and ferroelectric nano-compositesSong, Yicheng, January 2007 (has links)
Thesis (Ph. D.)--University of Hong Kong, 2008. / Also available in print.
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Technology development of ferroelectric capacitors with iridium electrodes for ULSI memory applications /Chen, Tung-sheng, January 1998 (has links)
Thesis (Ph. D.)--University of Texas at Austin, 1998. / Vita. Includes bibliographical references (leaves 118-124). Available also in a digital version from Dissertation Abstracts.
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Confocal luminescence microscopy study of defect-domain wall interaction in LiNbO₃ and its application to light-induced domain engineering /Sandmann, Christian, January 2004 (has links)
Thesis (Ph. D.)--Lehigh University, 2005. / Includes vita. Includes bibliographical references (leaves 177-190).
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Ferroelectric liquid crystal display based on photo-aligned azo-dye layers /Huang, Danding. January 2004 (has links)
Thesis (Ph.D.)--Hong Kong University of Science and Technology, 2004. / Includes bibliographical references. Also available in electronic version. Access restricted to campus users.
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Exchange bias and its angular dependence in Fex̲Zn₁-x̲F₂/Co bilayersShi, Hongtao. January 2002 (has links)
Thesis (Ph. D.)--West Virginia University, 2002. / Title from document title page. On t.p. "x̲" is subscript. Document formatted into pages; contains ix, 93 p. : ill. (some col.). Vita. Includes abstract. Includes bibliographical references (p. 89-92).
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Ultrafast spectroscopy of semiconducting and multiferroic materialsLou, Shitao. January 2007 (has links)
Thesis (Ph. D.)--Rutgers University, 2007. / "Graduate Program in Physics and Astronomy." Includes bibliographical references (p. 103-112).
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Growth and characterization of zinc ferrite thin films for high frequency applications /Hu, Jiqing. January 1900 (has links)
Thesis (Ph. D.)--Oregon State University, 2006. / Printout. Includes bibliographical references (leaves 101-107). Also available on the World Wide Web.
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Trefftz boundary and polygonal finite element methods for piezoelectric and ferroelectric analysesSheng, Ni. January 2005 (has links)
Thesis (Ph. D.)--University of Hong Kong, 2005. / Title proper from title frame. Also available in printed format.
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On nanoferroelectric domain structures and distributions of defects in ferroelectricsHong, Liang, January 2010 (has links)
Thesis (Ph. D.)--University of Hong Kong, 2010. / Includes bibliographical references (leaves 104-128). Also available in print.
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Síntese e propriedades físicas de cerâmicas ferroelétricas de PMN-PT /Reis, Reginaldo Naves dos. January 2009 (has links)
Orientador: Eudes Borges de Araújo / Banca: Newton Luiz Dias Filho / Banca: Marcelo Rubens Barsi Andreeta / Banca: Fábio Simões de Vicente / Banca: Emerson Marcelo Girotto / O Programa de Pós-Graduação em Ciência e Tecnologia de Materiais, PosMat, tem caráter institucional e integra as atividades de pesquisa em materiais de diversos campi da Unesp / Resumo: Materiais ferroelétricos do sistema Pb('Mg IND. 1/3'Nb IND.2/3')'O IND. 3'-xPbTi'O IND. 3'(PMN-xPT), possuem potencial efetivo para aplicações em dispositivos eletromecânicos, tais como, transdutores e sensores. Porém, a obtenção de cerâmica de PMN-xPT livre de fase pirocloro (paraelétrica) exige rigoroso controle durante a síntese. Neste trabalho, as condições destinadas a supressão de fase pirocloro em cerâmicas de PMN e PMN-xPT (para x = 0,33, 0,35 e 0,37), foram estudadas a partir de uma nova rota de preparação em função do excesso de MgO e PbO. Paralelamente, cerâmicas de PMN e PMN-PT obtidas pela rota convencional de mistura de óxidos, foram preparadas e os resultados comparados. Os resultados obtidos revelaram valores mais elevados de permissividade para as cerâmicas preparadas pela nova rota. Os valores da polarização remanescente das cerâmicas de PMN-xPT mostraram-se comparáveis com monocristais. Medidas dielétricas realizadas nas cerâmicas de PMN-xPT apontam um significante aumento nos valores de permissividade dielétrica em função do aumento do campo elétrico AC. Condutividade AC e impedância nas cerâmicas de PMN-xT foram estudadaas na região de frequência de 100Hz-1MHz e temperatura 325 - 50ºC. Uma anomalia no espectro de condutividade foi observada para todas as composições, próximo ao ponto de transição de fase ferroelétrica-paraelétrica. / Abstract: Ferroelectric materials of Pb('Mg IND. 1/3'Nb IND.2/3')'O IND. 3'-xPbTi'O IND. 3'(PMN-xPT) system have effective potential for applications in electromechanical devices such as transducers and sensors. However, to obtain free pyrochlore phase (paraelectric) ceramics of PMN-xPT requires control during the synthesis. In this work, the conditions for the removal of pyrochlore phase of PMN and PMN-xPT (for x = 0.33, 0,35 and 0.37) ceramics, were studied using a new route of preparation with the excess MgO and PbO. The obtained results were compared with the ceramics of PMN and PMN-xPT prepared by the conventional route of mixed oxides. The results showed higher values of permittivity for the ceramics prepared by the new route. The remnant polarization values of PMN-xPT ceramics shown to be comparable with single crystal. Dielectric of PMN-xPT ceramics showed a significant increase in the values of dielectric permittivity due to the increase of the AC electric field. Conductivity AC and impedance of PMN-xPT ceramics were studied in the frequency range of 100Hz - 1MHz and temperature 325 - 50ºC. An anomaly was observed in the spectrum of conductivity for all the compositions, which is close to the point of ferroelectric-paraelectric phase transition. / Doutor
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