{"id":33112,"date":"2018-03-09T09:30:05","date_gmt":"2018-03-09T09:30:05","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/teoria-de-conduccion-cuantica-en-nanocontactos-metalicos\/"},"modified":"2018-03-09T09:30:05","modified_gmt":"2018-03-09T09:30:05","slug":"teoria-de-conduccion-cuantica-en-nanocontactos-metalicos","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/fisica\/teoria-de-conduccion-cuantica-en-nanocontactos-metalicos\/","title":{"rendered":"Teoria de conduccion cuantica en nanocontactos metalicos."},"content":{"rendered":"<h2>Tesis doctoral de <strong> Jos\u00e9 Antonio Torres Alonso <\/strong><\/h2>\n<p>Desde el desarrollo de f\u00f3rmulas de car\u00e1cter general hasta el c\u00e1lculo exacto de modelos concretos de evoluci\u00f3n mec\u00e1nica de estos nanocontactos, se realiza un an\u00e1lisis te\u00f3rico del transporte el\u00e9ctrico a trav\u00e9s de nanocontactos met\u00e1licos. Se centra el trabajo en el r\u00e9gimen bal\u00edstico cu\u00e1ntico.  en concreto se exponen los siguientes subapartados: (los m\u00e1s importantes) -introducci\u00f3n &#8211; conductancia de contactos met\u00e1licos: maxwell, sharvin, landauer &#8211; generalizaci\u00f3n de la conductancia de sharvin (r\u00e9gimen semicl\u00e1sico) para el caso de potenciales suaves.  &#8211; correcciones de per\u00edmetro: efecto de la funci\u00f3n de trabajo.  &#8211; contactos curvil\u00edneos: bidimensionales.  tridimensionales: \u00e1ngulo de apertura &#8211; contactos abruptos: efectos de las resonancias.  &#8211; m\u00e9todo de la matriz de scattering generalizado: m\u00e9todo general de c\u00e1lculo &#8211; evoluci\u00f3n de nanocontactos (mec\u00e1nica, modelos):  contactos tipo \u00abl\u00edquido\u00bb, propiedades el\u00e1sticas y rugosidad. Estructura at\u00f3mica y energia cr\u00edtica de ruptura: fuerza, presi\u00f3n cr\u00edtica, c\u00e1lculos de conductancia seg\u00fan rompe el contacto, origen de las desviaciones de la cuantizaci\u00f3n perfecta (ensanchamiento y desplazamiento de los picos de conductancia en los histogramas), casos excepcionales.  &#8211; conductancia no lineal para voltajes altos (bal\u00edstica):  saturaci\u00f3n de la misma.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Teoria de conduccion cuantica en nanocontactos metalicos.<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Teoria de conduccion cuantica en nanocontactos metalicos. <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Jos\u00e9 Antonio Torres Alonso <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Aut\u00f3noma de Madrid<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 14\/10\/1997<\/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>Juan  Jos\u00e9 S\u00e1enz Guti\u00e9rrez<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: sebasti\u00e1n Vieira d\u00edaz <\/li>\n<li>Manuel Nieto vesperinas (vocal)<\/li>\n<li>ricardo Garcia garcia (vocal)<\/li>\n<li>Luis L\u00f3pez bonilla (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Jos\u00e9 Antonio Torres Alonso Desde el desarrollo de f\u00f3rmulas de car\u00e1cter general hasta el c\u00e1lculo exacto de [&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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