{"id":109495,"date":"2018-03-11T10:34:59","date_gmt":"2018-03-11T10:34:59","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/chemical-magnetic-and-electronic-properties-of-naxcoo2-and-related-compounds\/"},"modified":"2018-03-11T10:34:59","modified_gmt":"2018-03-11T10:34:59","slug":"chemical-magnetic-and-electronic-properties-of-naxcoo2-and-related-compounds","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/santiago-de-compostela\/chemical-magnetic-and-electronic-properties-of-naxcoo2-and-related-compounds\/","title":{"rendered":"Chemical, magnetic and electronic properties of naxcoo2 and related compounds."},"content":{"rendered":"<h2>Tesis doctoral de <strong> Manuel Ba\u00f1obre L\u00f3pez <\/strong><\/h2>\n<p>Durante los \u00faltimos a\u00f1os, el naxcoo2 ha experimentado un renovado y creciente inter\u00e9s en el campo de la ciencia del estado s\u00f3lido. El descubrimiento en naxcoo2 de propiedades novedosas hasta ahora desconocidas (alto poder termoel\u00e9ctrico o presencia de superconductividad a t<5k) y su posible relaci\u00f3n con fen\u00f3menos similares en otros materiales, estimul\u00f3 enormemente la investigaci\u00f3n en este sistema electr\u00f3nico altamente correlacionado. en esta tesis se pretende sintetizar diferentes muestras de naxcoo2 (0<x<1), tanto por reacci\u00f3n en estado s\u00f3lido como por desintercalaci\u00f3n qu\u00edmica oxidativa. Las muestras ser\u00e1n qu\u00edmica y f\u00edsicamente caracterizadas utilizando diversas t\u00e9cnicas de an\u00e1lisis. Se estudiar\u00e1n en detalle sus propiedades estructurales, magn\u00e9ticas y electr\u00f3nicas con el objetivo de profundizar en el entendimiento de algunos de los aspectos m\u00e1s fundamentales que rigen el comportamiento qu\u00edmico y f\u00edsico de este sistema: presencia de vacantes de ox\u00edgeno, papel del agua en la aparici\u00f3n de superconductividad o la naturaleza de la fase magn\u00e9tica en la fase x=0.5, entre otras. Todos estos temas que se mantienen bajo una fuerte discusi\u00f3n cient\u00edfica que, lejos de resolverlos, contribuye a generar una cada vez mayor controversia. por otro lado, la alta movilidad de los iones na+, que se encuentran entre las capas de octaedros coo6 en naxcoo2, permite realizar substituciones topot\u00e1cticas a temperaturas relativamente moderadas. De esta forma, se estudiar\u00e1 la eficacia de reacciones topot\u00e1cticas en las que se intercambien los iones na+ por otros iones mono- o di-valentes, tales como li+, ag+, ca2+ o sr2+. Las propiedades f\u00edsicas de los compuestos resultantes ser\u00e1n analizadas y comparadas con aquellas observadas en su an\u00e1logo precursor naxcoo2.\n\n\n\n&nbsp;\n\n\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Chemical, magnetic and electronic properties of naxcoo2 and related compounds.<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Chemical, magnetic and electronic properties of naxcoo2 and related compounds. <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Manuel Ba\u00f1obre L\u00f3pez <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Santiago de compostela<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 24\/06\/2011<\/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>Manuel Arturo L\u00f3pez Quintela<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: jose Rivas rey <\/li>\n<li>Jaime Merino troncoso (vocal)<\/li>\n<li>Emilio Moran Migueles (vocal)<\/li>\n<li>Mar\u00eda antonia Se\u00f1ar\u00eds  rodr\u00edguez (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Manuel Ba\u00f1obre L\u00f3pez Durante los \u00faltimos a\u00f1os, el naxcoo2 ha experimentado un renovado y creciente inter\u00e9s en [&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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