{"id":56510,"date":"2007-10-01T00:00:00","date_gmt":"2007-10-01T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/estudio-calorimetrico-y-magnetico-de-compuestos-de-transicion-de-espa%c2%adn-y-de-sus-estadosmetaestables-fotoinducidos\/"},"modified":"2007-10-01T00:00:00","modified_gmt":"2007-10-01T00:00:00","slug":"estudio-calorimetrico-y-magnetico-de-compuestos-de-transicion-de-espa%c2%adn-y-de-sus-estadosmetaestables-fotoinducidos","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/propiedades-magneticas-de-los-solidos\/estudio-calorimetrico-y-magnetico-de-compuestos-de-transicion-de-espa%c2%adn-y-de-sus-estadosmetaestables-fotoinducidos\/","title":{"rendered":"Estudio calorim\u00e9trico y magn\u00e9tico de compuestos de transici\u00f3n de esp\u00edn y de sus estadosmetaestables fotoinducidos"},"content":{"rendered":"<h2>Tesis doctoral de <strong>  Rodriguez Velamazan Jos\u00e9 Alberto <\/strong><\/h2>\n<p>En esta tesis se ha abordado el estudio de ciertos compuestos de transici\u00f3n de esp\u00edn de fe(ii) en torno a dos ejes principales: (i) eldesarrollo de una novedosa instalaci\u00f3n de fotocalorimetr\u00eda y su aplicaci\u00f3n al estudio calorim\u00e9trico de los fen\u00f3menos fotoinducidosque presentan estos compuestos a baja temperatura, y (ii) el estudio magn\u00e9tico, fotomagn\u00e9tico, estructural y calorim\u00e9trico de dosfamilias de compuestos que siguen la aproximaci\u00f3n polim\u00e9rica para favorecer las interacciones intermoleculares.- Se ha desarrollado una instalaci\u00f3n de calorimetr\u00eda (t\u00e9cnicas ac y de relajaci\u00f3n) con modulaci\u00f3n resistiva que permite fotoexcitar abaja temperatura muestras del orden de 1 mg. Se han dise\u00f1ado y obtenido sustratos calentadores adecuados para la modulaci\u00f3nresistiva.- Se han realizado las primeras medidas calorim\u00e9tricas del estado metaestable fotoinducido en dos compuestos de sco: [fe(pm?Bia)2(ncs)2], representante de la aproximaci\u00f3n molecular, y fe(pmd)2[cu(cn)2]2, representante de la aproximaci\u00f3n polim\u00e9rica.- Las anomal\u00edas detectadas reflejan la relajaci\u00f3n del estado de as al de bs, y concuerdan con la caracterizaci\u00f3n magn\u00e9tica.- Los resultados obtenidos ponen en evidencia que la compactaci\u00f3n de las muestras en polvo para formar pastillas produce unamodificaci\u00f3n de las propiedades de los mismos, que se ha tratado de comprender mediante una caracterizaci\u00f3n completa cont\u00e9cnicas diversas.- Se ha estudiado la familia de compuestos polim\u00e9ricos bidimensionales fe(l)2[ag(cn)2]2 (l = py; 3-mepy; 4-mepy; 3,4-dimepy;3-clpy), que ha sido caracterizada mediante t\u00e9cnicas magn\u00e9ticas, fot\u00f3magn\u00e9ticas, calorim\u00e9tricas, de espectroscopia mdssbauer y de difracci\u00f3n de rayos x<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Estudio calorim\u00e9trico y magn\u00e9tico de compuestos de transici\u00f3n de esp\u00edn y de sus estadosmetaestables fotoinducidos<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Estudio calorim\u00e9trico y magn\u00e9tico de compuestos de transici\u00f3n de esp\u00edn y de sus estadosmetaestables fotoinducidos <\/li>\n<li><strong>Autor:<\/strong>\u00a0  Rodriguez Velamazan Jos\u00e9 Alberto <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Zaragoza<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 10\/01\/2007<\/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>Ram\u00f3n Burriel Lahoz<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: fernando Palacio parada <\/li>\n<li>Javier Rubin llera (vocal)<\/li>\n<li>francois Varret (vocal)<\/li>\n<li>daniel Ruiz molina (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Rodriguez Velamazan Jos\u00e9 Alberto En esta tesis se ha abordado el estudio de ciertos compuestos de transici\u00f3n [&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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