{"id":11062,"date":"1996-01-01T00:00:00","date_gmt":"1996-01-01T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/1996\/01\/01\/obtencion-y-caracterizacion-de-superconductores-de-alta-temperatura-critica-estudio-comparativo-con-superconductores-reentrantes\/"},"modified":"1996-01-01T00:00:00","modified_gmt":"1996-01-01T00:00:00","slug":"obtencion-y-caracterizacion-de-superconductores-de-alta-temperatura-critica-estudio-comparativo-con-superconductores-reentrantes","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/fisica\/obtencion-y-caracterizacion-de-superconductores-de-alta-temperatura-critica-estudio-comparativo-con-superconductores-reentrantes\/","title":{"rendered":"Obtencion y caracterizacion de superconductores de alta temperatura critica. estudio comparativo con superconductores reentrantes."},"content":{"rendered":"<h2>Tesis doctoral de <strong>  Cagigal De Gregorio Macarena <\/strong><\/h2>\n<p>En este trabajo se han fabricado peliculas delgadas de yba2cu3o7 mediante pld sobre sustratos policristalinos (ysz) y de interes tecnologico (si\/si3n4). Las peliculas de caracter policristalino estan texturadas (eje c ), y presentan temperaturas ( 91k) y corriente criticas ( 3.10 4 a\/cm2) que destacan entre los mejores resultados en la literatura sobre sustratos policristalinos. Se ha puesto a punto la tecnica de grabado con laser para la fabricacion de micropuentes superconductores con buenos resultados, como son puentes de 10 mum de anchura. Desde un punto de vista basico, se han estudiado las propiedades de los superconductores reentrantes de la familia del er1-xhoxrh4b4, para distintas concentraciones de ho. Hemos obtenido los campos criticos, longitudes coherentes y de penetracion y corrientes criticas. Esto nos ha permitido analizar las principales diferencias y semejanzas entre los satc y los de baja temperatura critica, como el er1-xhoxrh4b4. Se ha medido la magnetorresistencia y el efecto hall en estos materiales y en monocristales de superconductores electronicos.  algunas teorias, que intentan explicar el efecto hall en el estado mixto de los superconductores, se han estudiado en profundidad. Hemos encontrado que la estructura de bandas del material, o parametros como el recorrido libre medio (l) o la longitud coherente, juegan un papel importante en el comportamiento del efecto hall.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Obtencion y caracterizacion de superconductores de alta temperatura critica. estudio comparativo con superconductores reentrantes.<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Obtencion y caracterizacion de superconductores de alta temperatura critica. estudio comparativo con superconductores reentrantes. <\/li>\n<li><strong>Autor:<\/strong>\u00a0  Cagigal De Gregorio Macarena <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Complutense de Madrid<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 01\/01\/1996<\/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> Vicent Lopez Jos\u00e9 Luis<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: Juan  Manuel Rojo  Alaminos <\/li>\n<li>Josep Fontcuberta Gri\u00f1\u00f3 (vocal)<\/li>\n<li>Rafael Navarro Linares (vocal)<\/li>\n<li>  (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Cagigal De Gregorio Macarena En este trabajo se han fabricado peliculas delgadas de yba2cu3o7 mediante pld sobre [&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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