{"id":13153,"date":"2001-04-10T00:00:00","date_gmt":"2001-04-10T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/estudio-espectroscopico-de-la-dinamica-de-la-red-cristalina-y-su-desorden-en-materiales-ferroelectricos-y-similares\/"},"modified":"2001-04-10T00:00:00","modified_gmt":"2001-04-10T00:00:00","slug":"estudio-espectroscopico-de-la-dinamica-de-la-red-cristalina-y-su-desorden-en-materiales-ferroelectricos-y-similares","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/fisica\/estudio-espectroscopico-de-la-dinamica-de-la-red-cristalina-y-su-desorden-en-materiales-ferroelectricos-y-similares\/","title":{"rendered":"Estudio espectroscopico de la dinamica de la red cristalina y su desorden en materiales ferroelectricos y similares"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Elena Buixaderas Lopez <\/strong><\/h2>\n<p>Esta tesis doctoral esta dedicada al estudio de la din\u00e1mica de la red cristalina y a la influencia del desorden din\u00e1mico, mediante espectroscopia infrarroja y otras t\u00e9cnicas complementarias en una serie de materiales ferroelectricos, se ha realizado el an\u00e1lisis de los modos polares en las diferentes fases y se ha determinado la simetr\u00eda del par\u00e1metro de orden de las transiciones en las diferentes fases.  se ha comprobado la existencia de modos centrales que contribuyen fuertemente a la permisividad en todos los materiales. El acoplamiento entre fonones ha sido satisfactoriamente explicado en varios materiales. Finalmente se ha concluido que los materiales ferroelectricos estudiados en de tipo intermedio entre los tipos de desplazamiento y orden-desorden.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Estudio espectroscopico de la dinamica de la red cristalina y su desorden en materiales ferroelectricos y similares<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Estudio espectroscopico de la dinamica de la red cristalina y su desorden en materiales ferroelectricos y similares <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Elena Buixaderas Lopez <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Pa\u00eds vasco\/euskal herriko unibertsitatea<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 04\/10\/2001<\/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>Jan Petzelt<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: manuel Tello leon <\/li>\n<li>ivan Gregora (vocal)<\/li>\n<li> Perez mato Juan  Manuel (vocal)<\/li>\n<li>Jos\u00e9 Rodr\u00edguez (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Elena Buixaderas Lopez Esta tesis doctoral esta dedicada al estudio de la din\u00e1mica de la red cristalina [&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 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