{"id":31704,"date":"1997-01-01T00:00:00","date_gmt":"1997-01-01T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/conduccion-electrica-en-nanocontactos-metalicos\/"},"modified":"1997-01-01T00:00:00","modified_gmt":"1997-01-01T00:00:00","slug":"conduccion-electrica-en-nanocontactos-metalicos","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/fisica\/conduccion-electrica-en-nanocontactos-metalicos\/","title":{"rendered":"Conduccion electrica en nanocontactos metalicos."},"content":{"rendered":"<h2>Tesis doctoral de <strong> Carlos Sirvent Stolzenberg <\/strong><\/h2>\n<p>En este trabajo se ha presentado un estudio detallado de la conduccion electrica en nanocontactos metalicos, tanto en estado normal como en el estado superconductor. Este trabajo se ha realizado principalmente a bajas temperaturas y se ha usado un microscopio de efecto tunel (stm). Este estudio abarca desde los contactos mas peque\u00f1os que se pueden fabricar, y que son de pocos atomos hasta contactos con secciones de decenas de nanometros.  en el contacto mas peque\u00f1o se ha estudiado como se produce el paso de tunel a contacto, y como afecta a este proceso el voltaje de polarizacion aplicado entre los dos electrodos. Se ha presentado una simulacion numerica en el que se obtiene un buen acuerdo cualitativo con los resultados experimentales.  tambien se ha estudiado el valor minimo de conductancia que se obtiene en contacto. En este caso se ha medido el efecto de la naturaleza electronica del material, la temperatura, el voltaje de polarizacion, y la superconductividad en los valores de conductancia obtenidos.  se ha estudiado el efecto de la forma del cuello conector, en contactos grandes, en la conduccion de pares entre electrodos superconductores, y en el calentamiento del contacto debido a la disipacion de potencia.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Conduccion electrica en nanocontactos metalicos.<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Conduccion electrica en nanocontactos metalicos. <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Carlos Sirvent Stolzenberg <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Aut\u00f3noma de Madrid<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 01\/01\/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>Sebasti\u00e1n Vieira D\u00edaz<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: Raul Villar Lazaro <\/li>\n<li>Ignacio Zu\u00f1iga Lopez (vocal)<\/li>\n<li>Fernando Flores Sintas (vocal)<\/li>\n<li> Lopez De La Torre Hidalgo Marco Antonio (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Carlos Sirvent Stolzenberg En este trabajo se ha presentado un estudio detallado de la conduccion electrica en 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