{"id":88844,"date":"2018-03-10T00:13:55","date_gmt":"2018-03-10T00:13:55","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/efecto-tunel-resonante-y-coherencia-cuantica-en-materiales-magneticos-mesoscopicos\/"},"modified":"2018-03-10T00:13:55","modified_gmt":"2018-03-10T00:13:55","slug":"efecto-tunel-resonante-y-coherencia-cuantica-en-materiales-magneticos-mesoscopicos","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/fisica\/efecto-tunel-resonante-y-coherencia-cuantica-en-materiales-magneticos-mesoscopicos\/","title":{"rendered":"Efecto tunel resonante y coherencia cuantica en materiales magneticos mesoscopicos."},"content":{"rendered":"<h2>Tesis doctoral de <strong> Enrique Gonzalez Garcia <\/strong><\/h2>\n<p>En la mentada tesis se presentan los experimentos realizados en materiales magn\u00e9ticos mesoscopicos, como clusters moleculares organometalicos y particulas magneticas nanom\u00e9tricas, para la consecuci\u00f3n de la observaci\u00f3n de los fen\u00f3menos de efecto t\u00fanel resonante de la magnetizaci\u00f3n y la coherencia cu\u00e1ntica de esp\u00edn.  tiene tres cap\u00edtulos que se reparten como sigue:  capitulo 1: exposici\u00f3n detallada sobre el estado de la f\u00edsica de efecto t\u00fanel de la relajaci\u00f3n magn\u00e9tica en sistemas de part\u00edculas mesosc\u00f3picas y clusters moleculares de fe8 y mn12. Adem\u00e1s se incluyen las \u00faltimas aportaciones experimentales realizadas por el autor en los \u00faltimos cuatro a\u00f1os.  capitulo 2: exposici\u00f3n detallada de la observaci\u00f3n del efecto t\u00fael resonante en ferritina natural del bazo del caballo. La observaci\u00f3n se ha realizado mediante medidas de relajaci\u00f3n magn\u00e9tica y viscosidad, adem\u00e1s de medidas de magnetometria d.C. En funci\u00f3n del campo magn\u00e9tico aplicado.  capitulo 3: desarrollo de los experimentos que llevaron al autor al descubrimiento del fen\u00f3meno de la coherencia cuantica de esp\u00edn: las medidas realizadas sobre una muestra molecular de fe8 se han llevado a cabo mediante cavidades resonantes que utilizan radiaci\u00f3n electromagn\u00e9tica de frecuencias comprendidas entre 680mhz y 110 ghz. La observaci\u00f3n de las resonancias de la superposici\u00f3n de los niveles de esp\u00edn de la molecula supone un nuevo hito en la fisica del estado s\u00f3lido desde que surguiera en 1935 la paradoja del \u00abgato de schrodinger\u00bb. Es la primera vez que se observa dicho fen\u00f3meno en sistemas magneticos y en general en sistemas de gran tama\u00f1o.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Efecto tunel resonante y coherencia cuantica en materiales magneticos mesoscopicos.<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Efecto tunel resonante y coherencia cuantica en materiales magneticos mesoscopicos. <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Enrique Gonzalez Garcia <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Barcelona<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 13\/02\/2001<\/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>Javier Tejada Palacios<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: Miguel Rub\u00ed capaceti <\/li>\n<li>Juan Bartolom\u00e9 sanjoaqu\u00edn (vocal)<\/li>\n<li>Jos\u00e9 Luis Morenza gil (vocal)<\/li>\n<li>elias Molins grau (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Enrique Gonzalez Garcia En la mentada tesis se presentan los experimentos realizados en materiales magn\u00e9ticos mesoscopicos, como [&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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