{"id":5488,"date":"1995-01-01T00:00:00","date_gmt":"1995-01-01T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/1995\/01\/01\/conductividad-magnetoconductividad-y-diamagnetismo-inducidos-por-fluctuaciones-en-los-planos-superconductores-de-cristales-multiperiodicos-de-oxidos-de-cobre\/"},"modified":"1995-01-01T00:00:00","modified_gmt":"1995-01-01T00:00:00","slug":"conductividad-magnetoconductividad-y-diamagnetismo-inducidos-por-fluctuaciones-en-los-planos-superconductores-de-cristales-multiperiodicos-de-oxidos-de-cobre","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/fisica\/conductividad-magnetoconductividad-y-diamagnetismo-inducidos-por-fluctuaciones-en-los-planos-superconductores-de-cristales-multiperiodicos-de-oxidos-de-cobre\/","title":{"rendered":"Conductividad, magnetoconductividad y diamagnetismo inducidos por fluctuaciones en los planos superconductores de cristales multiperiodicos de oxidos de cobre"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Alberto Pomar Barbeito <\/strong><\/h2>\n<p>En este trabajo se presentaron medidas de precision de los efectos asociados con la creacion de pares de cooper por fluctuaciones termicas por encima y cerca de la transicion superconductora en cristales de dos familias de oxidos de cobre superconductores: y1ba2cu3o7-  y bi2sr2ca1cu2o8. Estas medidas se realizaron en excelentes cristales de las dos familias de superconductores.  las tres magnitudes estudiadas han sido la conductividad y la magnetoconductividad inducidas por fluctuaciones en los planos ab o en la direccion a, y el diamagnetismo inducido por fluctuaciones en los planos ab. Tanto la magnetocunductividad como el diamagnetismo se han estudiado en el limite de campos magneticos debiles.  se presenta un analisis simultaneo y consistente de los efectos de las fluctuaciones del parametro de orden en las tres magnitudes indicadas. Dicho analisis se ha hecho con ayuda de los modelos teoricos que tienen en cuenta la doble periodicidad de estos compuestos, asi como los diferentes acoplamientos josephson entre los planos superconductores.  de estos analisis se concluye que los denominados efectos indirectos son irrelevantes en los htsc y se confirma la existencia de una region completamente critica.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Conductividad, magnetoconductividad y diamagnetismo inducidos por fluctuaciones en los planos superconductores de cristales multiperiodicos de oxidos de cobre<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Conductividad, magnetoconductividad y diamagnetismo inducidos por fluctuaciones en los planos superconductores de cristales multiperiodicos de oxidos de cobre <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Alberto Pomar Barbeito <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Santiago de compostela<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 01\/01\/1995<\/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>Felix Vidal Costa<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: Juan  S Mu\u00f1oz Dominguez <\/li>\n<li>Josep Fontcuberta Gri\u00f1\u00f3 (vocal)<\/li>\n<li>Jes\u00fas Maza Frechin (vocal)<\/li>\n<li>Rafael Navarro Linares (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Alberto Pomar Barbeito En este trabajo se presentaron medidas de precision de los efectos asociados con la [&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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