{"id":62516,"date":"2018-03-09T22:50:25","date_gmt":"2018-03-09T22:50:25","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/topotaxia-en-el-sistema-ca-sr-mn-o-un-compromiso-entre-el-orden-cationico-y-la-subred-anionica\/"},"modified":"2018-03-09T22:50:25","modified_gmt":"2018-03-09T22:50:25","slug":"topotaxia-en-el-sistema-ca-sr-mn-o-un-compromiso-entre-el-orden-cationico-y-la-subred-anionica","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/topotaxia-en-el-sistema-ca-sr-mn-o-un-compromiso-entre-el-orden-cationico-y-la-subred-anionica\/","title":{"rendered":"Topotaxia en el sistema (ca\/sr)-mn-o: un compromiso entre el orden cati\u00f3nico y la subred ani\u00f3nica."},"content":{"rendered":"

Tesis doctoral de Susana De Dios Sinovas <\/strong><\/h2>\n

Las perovskitas de manganeso, amno3, han recibido particular atenci\u00f3n debido a sus potenciales aplicaciones como catalizadores y sensores magnetorresistivos. Sus propiedades qu\u00edmico-f\u00edsicas son sensibles tanto a la distorsi\u00f3n estructural como a las variaciones de composici\u00f3n en las subredes ani\u00f3nica y cati\u00f3nica. El objetivo de esta tesis ha sido la s\u00edntesis de materiales derivados del tipo estructural perovskita de composici\u00f3n amno3-5(a=ca y\/o sr y =<-delta<-0.5) y tipo k2nif4, a2mno4-delta (a=ca y\/o sr y 0<-delta<-0.5), con el fin de realizar un estudio sistem\u00e1tico de la influencia de las variaciones de composici\u00f3n cati\u00f3nica y ani\u00f3nica en sus propiedades f\u00edsico-qu\u00edmicas. En el cap\u00edtulo i, se ha estudiado el sistema ca1-xsrxmno3-delta y se han propuesto modelos estructurales que explican la distribuci\u00f3n de las vacantes ani\u00f3nicas en el sistema y que justifican las propiedades magn\u00e9ticas observadas. En el cap\u00edtulo ii, se ha realizado un estudio microestructural del sistema ca2-xsrxmno4-delta. Se han establecido los intervalos de composici\u00f3n tanto cati\u00f3nica como ani\u00f3nica de estabilizaci\u00f3n de diferentes simetr\u00edas, mostrando la correlaci\u00f3n entre la estructura y las propiedades magn\u00e9ticas observadas. En el cap\u00edtulo iii de la memoria se han estudiado los procesos de reducci\u00f3n-oxidaci\u00f3n topot\u00e1cticos entre algunos \u00f3xidos de los sistemas anteriores y \u00f3xidos con estructura tipo naci. La reducci\u00f3n topot\u00e1ctica de estos \u00f3xidos da lugar a \u00f3xidos ca1-xmnxo, tipo naci, con orden cati\u00f3nico ca\/mn que se establece a corta distancia. Se proponen los mecanismos que rigen la reducci\u00f3n topot\u00e1ctica de los procesos: camno3 -camno2, ca2mno4 - ca2mno3 y camno4 - camn2o3.\n\n\n\n \n\n\n

Datos acad\u00e9micos de la tesis doctoral \u00abTopotaxia en el sistema (ca\/sr)-mn-o: un compromiso entre el orden cati\u00f3nico y la subred ani\u00f3nica.<\/strong>\u00ab<\/h3>\n
    \n
  • T\u00edtulo de la tesis:<\/strong>\u00a0 Topotaxia en el sistema (ca\/sr)-mn-o: un compromiso entre el orden cati\u00f3nico y la subred ani\u00f3nica. <\/li>\n
  • Autor:<\/strong>\u00a0 Susana De Dios Sinovas <\/li>\n
  • Universidad:<\/strong>\u00a0 Complutense de Madrid<\/li>\n
  • Fecha de lectura de la tesis:<\/strong>\u00a0 21\/01\/2008<\/li>\n<\/ul>\n

     <\/p>\n

    Direcci\u00f3n y tribunal<\/h3>\n
      \n
    • Director de la tesis<\/strong>\n
        \n
      • M\u00aa \u00e1urea Varela Losada<\/li>\n<\/ul>\n<\/li>\n
      • Tribunal<\/strong>\n
          \n
        • Presidente del tribunal: Mar\u00eda dulce nombre Vallet reg\u00ed <\/li>\n
        • Carlos Otero arean (vocal)<\/li>\n
        • Emilio Mor\u00e1n Miguelez (vocal)<\/li>\n
        • M\u00aa del mar Garc\u00eda hern\u00e1ndez (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n

           <\/p>\n","protected":false},"excerpt":{"rendered":"

          Tesis doctoral de Susana De Dios Sinovas Las perovskitas de manganeso, amno3, han recibido particular atenci\u00f3n debido a sus potenciales […]<\/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 center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"footnotes":""},"categories":[1],"tags":[52014,15134,138055,138054,138056,138053],"class_list":["post-62516","post","type-post","status-publish","format-standard","hentry","category-sin-categoria","tag-carlos-otero-arean","tag-emilio-moran-miguelez","tag-maria-dulce-nombre-vallet-regi","tag-ma-aurea-varela-losada","tag-ma-del-mar-garcia-hernandez","tag-susana-de-dios-sinovas"],"_links":{"self":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/posts\/62516","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/comments?post=62516"}],"version-history":[{"count":0,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/posts\/62516\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/media?parent=62516"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/categories?post=62516"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/tags?post=62516"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}