{"id":107126,"date":"2011-02-03T00:00:00","date_gmt":"2011-02-03T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/materiales-ferroelectricos-basados-en-batio3-y-ba2smndti2nb3o15-caracterizacion-electrica-por-espectroscopia-de-impedancia\/"},"modified":"2011-02-03T00:00:00","modified_gmt":"2011-02-03T00:00:00","slug":"materiales-ferroelectricos-basados-en-batio3-y-ba2smndti2nb3o15-caracterizacion-electrica-por-espectroscopia-de-impedancia","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/quimica-del-estado-solido\/materiales-ferroelectricos-basados-en-batio3-y-ba2smndti2nb3o15-caracterizacion-electrica-por-espectroscopia-de-impedancia\/","title":{"rendered":"Materiales ferroel\u00e9ctricos basados en batio3 y ba2(sm,nd)ti2nb3o15. caracterizaci\u00f3n el\u00e9ctrica por espectroscopia de impedancia."},"content":{"rendered":"<h2>Tesis doctoral de <strong> Marta Prades Tena <\/strong><\/h2>\n<p>Esta tesis versa en la s\u00edntesis, mediante m\u00e9todos de baja temperatura (sol-gel y solvotermal), la caracterizaci\u00f3n y el estudio de las propiedades el\u00e9ctricas, mediante espectroscopia de impedancia, de dos tipos de materiales ferroel\u00e9ctricos: el \u00f3xido mixto de titanio y bario, batio3 (bt), dopado con diferentes iones (con estructura perovsquita), y la familia de compuestos ba2lnti2nb3o15 (ln = i\u00f3n lant\u00e1nido), con estructura de bronce de tungsteno tetragonal (ttb). Los principales resultados en el primer sistema estudiado (bt) es el descubrimiento de un nuevo fen\u00f3meno en materiales dopados con iones aceptores relacionado con la respuesta no-\u00f3hmica de su resistencia al aplicar un peque\u00f1o voltaje dc, tanto de la frontera como del interior de grano, lo que los hace prometedores para aplicaciones tales como dispositivos de memoria (similares a los memristores), de protecci\u00f3n o sensores. Respecto al segundo sistema estudiado (ttb), el principal resultado fue la inusual hist\u00e9resis t\u00e9rmica en la transici\u00f3n ferroel\u00e9ctrica y la gran diferencia entre la temperatura de transici\u00f3n y la temperatura de curie-weiss. En todos los materiales se ha analizado en detalle la relaci\u00f3n existente entre estructura, composici\u00f3n y propiedad.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Materiales ferroel\u00e9ctricos basados en batio3 y ba2(sm,nd)ti2nb3o15. caracterizaci\u00f3n el\u00e9ctrica por espectroscopia de impedancia.<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Materiales ferroel\u00e9ctricos basados en batio3 y ba2(sm,nd)ti2nb3o15. caracterizaci\u00f3n el\u00e9ctrica por espectroscopia de impedancia. <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Marta Prades Tena <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Jaume i de castell\u00f3n<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 02\/03\/2011<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h3>Direcci\u00f3n y tribunal<\/h3>\n<ul>\n<li><strong>Director de la tesis<\/strong>\n<ul>\n<li>Eloisa Cordoncillo Cordoncillo<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: Juan  bautista Carda castell\u00f3 <\/li>\n<li>john a. Kilner (vocal)<\/li>\n<li>glenn christhofer Mather (vocal)<\/li>\n<li>Fernando Manuel Bico marqu\u00e9s (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Marta Prades Tena Esta tesis versa en la s\u00edntesis, mediante m\u00e9todos de baja temperatura (sol-gel y solvotermal), [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"footnotes":""},"categories":[10426,18725,1117],"tags":[32683,215305,136463,215304,143577,215303],"class_list":["post-107126","post","type-post","status-publish","format-standard","hentry","category-dielectricos","category-jaume-i-de-castellon","category-quimica-del-estado-solido","tag-eloisa-cordoncillo-cordoncillo","tag-fernando-manuel-bico-marques","tag-glenn-christhofer-mather","tag-john-a-kilner","tag-juan-bautista-carda-castello","tag-marta-prades-tena"],"_links":{"self":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/posts\/107126","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/comments?post=107126"}],"version-history":[{"count":0,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/posts\/107126\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/media?parent=107126"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/categories?post=107126"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/tags?post=107126"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}