{"id":35254,"date":"1998-01-01T00:00:00","date_gmt":"1998-01-01T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/analisis-de-la-relajacion-magnetica-en-superconductores-de-la-familia-de-los-ybacuo\/"},"modified":"1998-01-01T00:00:00","modified_gmt":"1998-01-01T00:00:00","slug":"analisis-de-la-relajacion-magnetica-en-superconductores-de-la-familia-de-los-ybacuo","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/fisica\/analisis-de-la-relajacion-magnetica-en-superconductores-de-la-familia-de-los-ybacuo\/","title":{"rendered":"Analisis de la relajacion magnetica en superconductores de la familia de los ybacuo."},"content":{"rendered":"<h2>Tesis doctoral de <strong>  Raposo Funcia Victor Javier <\/strong><\/h2>\n<p>Se ha fabricado una serie de muestras policristalinas de superconductores de la familia de los ybacuo. Se ha puesto a punto un sistema para la medida de la relajaci\u00f3n magn\u00e9tica en superconductores. Se ha realizado una caracterizaci\u00f3n magn\u00e9tica de las muestras de la que se ha obtenido la temperatura de transici\u00f3n y anchura de la misma en diferentes condiciones de medida, observando el efecto que tiene el proceso de calcinaci\u00f3n en ellas. Se ha realizado un conjunto de medidas sistem\u00e1ticas de la relajaci\u00f3n magn\u00e9tica de las muestras en el intervalo de temperaturas en el que se encuentran en estado superconductor. Se han analizado los diversos modelos que existen sobre la relajaci\u00f3n magn\u00e9tica en superconductores. Se ha discutido en cada uno de los casos la validez de los mismos. Se ha particularizado el modelo de relajaciones lentas para este tipo de materiales. A partir de ellos se han obtenido los siguientes resultados: en todas las muestras se produce un aumento de la energ\u00eda efectiva de fijaci\u00f3n con la temperatura. Existe una dependencia no lineal entre la energ\u00eda efectiva de fijaci\u00f3n y el campo magn\u00e9tico aplicado. Con \u00e9l se pueden ver las discrepancias frente al comportamiento logar\u00edtmico y deducir la dependencia de la energ\u00eda efectiva con la susceptibilidad, que finalmente resulta ser no lineal.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Analisis de la relajacion magnetica en superconductores de la familia de los ybacuo.<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Analisis de la relajacion magnetica en superconductores de la familia de los ybacuo. <\/li>\n<li><strong>Autor:<\/strong>\u00a0  Raposo Funcia Victor Javier <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Salamanca<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 01\/01\/1998<\/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>Marcelino Zazo Rodriguez<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal:  Gonzalez Espeso Pablo G. <\/li>\n<li>Daniel Baldomir  Fern\u00e1ndez (vocal)<\/li>\n<li> Domingues Perdigao Joao Manuel (vocal)<\/li>\n<li> Mu\u00f1oz Mu\u00f1oz Jos\u00e9 Mar\u00eda (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Raposo Funcia Victor Javier Se ha fabricado una serie de muestras policristalinas de superconductores de la familia [&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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