{"id":112594,"date":"2018-03-11T10:39:36","date_gmt":"2018-03-11T10:39:36","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/application-of-the-superspace-formalism-to-systems-with-flexible-composition\/"},"modified":"2018-03-11T10:39:36","modified_gmt":"2018-03-11T10:39:36","slug":"application-of-the-superspace-formalism-to-systems-with-flexible-composition","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/cristalografia\/application-of-the-superspace-formalism-to-systems-with-flexible-composition\/","title":{"rendered":"Application of the superspace formalism to systems with flexible composition"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Pablo Javier Bereciartua Perez <\/strong><\/h2>\n<p>Durante el desarrollo de la presente tesis se ha llevado a cabo el an\u00e1lisis estructural de dos sistemas de composici\u00f3n flexible a trav\u00e9s del formalismo superespacial.Dado que dicho formalismo superespacial no forma parte de los m\u00e9todos cristalogr\u00e1ficos convencionales, la primera parte de esta tesis consiste en una breve revisi\u00f3n de los conceptos b\u00e1sicos del mencionado formalismo, junto con las ideas fundamentales de su aplicaci\u00f3n a los sistemas de composici\u00f3n flexible.En la segunda parte se ha estudiado la fase monocl\u00ednica del sistema inal1-xtixo3+x\/2. La estructura de dicha fase se ha investigado a trav\u00e9s de experimentos de difracci\u00f3n de rayos x con muestras monocristalinas, combinados con un microan\u00e1lisis wdx. Se ha obtenido que esta fase puede ser descrita como una estructura inconmensurable modulada o como una estructura inconmensurable de intercalaci\u00f3n. Ambos modelos son equivalentes y permiten establecer una relaci\u00f3n simple entre la estructura y la composici\u00f3n en este sistema. En la tercera parte de esta tesis se ha estudiado la estructura de la familia bi2(n+2)mono6(n+1). El an\u00e1lisis realizado se basa en experimentos de difracci\u00f3n de muestras policristalinas, empleando tanto radiaci\u00f3n sincrotr\u00f3n como neutrones. Para la descripci\u00f3n de esta familia se han necesitado dos modelos superespaciales diferentes, en funci\u00f3n de la paridad del par\u00e1metro n. Ambos modelos permiten una descripci\u00f3n concisa de la distribuci\u00f3n cati\u00f3nica que presentan los diferentes compuestos de la familia, aunque la descripci\u00f3n de ciertos \u00e1tomos de ox\u00edgeno resulta no ser tan sencilla<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Application of the superspace formalism to systems with flexible composition<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Application of the superspace formalism to systems with flexible composition <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Pablo Javier Bereciartua Perez <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Pa\u00eds vasco\/euskal herriko unibertsitatea<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 30\/03\/2012<\/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>Francisco Javier Zu\u00f1iga Lagares<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: gotzon Madariaga menendez <\/li>\n<li>vaclac Petricek (vocal)<\/li>\n<li>Mar\u00eda  cristina Gonzalez silgo (vocal)<\/li>\n<li>michal Dusek &#8212; (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Pablo Javier Bereciartua Perez Durante el desarrollo de la presente tesis se ha llevado a cabo el [&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 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":[12152,20483,12909],"tags":[212170,119731,223945,223946,223943,223944],"class_list":["post-112594","post","type-post","status-publish","format-standard","hentry","category-cristalografia","category-estructura-cristalina","category-pais-vasco-euskal-herriko-unibertsitatea","tag-francisco-javier-zuniga-lagares","tag-gotzon-madariaga-menendez","tag-maria-cristina-gonzalez-silgo","tag-michal-dusek","tag-pablo-javier-bereciartua-perez","tag-vaclac-petricek"],"_links":{"self":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/posts\/112594","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=112594"}],"version-history":[{"count":0,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/posts\/112594\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/media?parent=112594"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/categories?post=112594"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/tags?post=112594"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}