{"id":4265,"date":"2025-04-24T07:50:04","date_gmt":"2025-04-24T07:50:04","guid":{"rendered":"https:\/\/fs.kibu.ac.ke\/?p=4265"},"modified":"2025-12-27T00:13:02","modified_gmt":"2025-12-27T00:13:02","slug":"crystal-structure-and-mechanism-of-superconductivity-in-cerium-based-heavy-fermions","status":"publish","type":"post","link":"https:\/\/kibu.ac.ke\/fs\/crystal-structure-and-mechanism-of-superconductivity-in-cerium-based-heavy-fermions\/","title":{"rendered":"Crystal Structure And Mechanism Of Superconductivity In Cerium Based Heavy Fermions"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"4265\" class=\"elementor elementor-4265\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-62cfb0b0 elementor-section-full_width elementor-section-height-min-height elementor-section-items-stretch elementor-section-height-default\" data-id=\"62cfb0b0\" data-element_type=\"section\" id=\"ourgoal\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-3c98b957\" data-id=\"3c98b957\" data-element_type=\"column\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-61f7ccb9 elementor-widget elementor-widget-theme-post-title elementor-page-title elementor-widget-heading\" data-id=\"61f7ccb9\" data-element_type=\"widget\" data-widget_type=\"theme-post-title.default\">\n\t\t\t\t\t<h1 class=\"elementor-heading-title elementor-size-default\">Crystal Structure And Mechanism Of Superconductivity In Cerium Based Heavy Fermions<\/h1>\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-10369fd0 elementor-section-height-min-height elementor-section-boxed elementor-section-height-default elementor-section-items-middle\" data-id=\"10369fd0\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-no\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-6b4d544c\" data-id=\"6b4d544c\" data-element_type=\"column\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-71525571 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"71525571\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-inner-column elementor-element elementor-element-6c98684e elementor-invisible\" data-id=\"6c98684e\" data-element_type=\"column\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;,&quot;animation&quot;:&quot;fadeIn&quot;,&quot;animation_mobile&quot;:&quot;none&quot;}\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-3d163fab elementor-widget__width-auto elementor-widget elementor-widget-heading\" data-id=\"3d163fab\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">2025<\/h2>\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-inner-column elementor-element elementor-element-6680e551 elementor-invisible\" data-id=\"6680e551\" data-element_type=\"column\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;,&quot;animation&quot;:&quot;fadeIn&quot;,&quot;animation_mobile&quot;:&quot;none&quot;}\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-1ea004d3 elementor-widget elementor-widget-heading\" data-id=\"1ea004d3\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">KIBU Authors<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4353553a elementor-invisible elementor-widget elementor-widget-text-editor\" data-id=\"4353553a\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeIn&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Michael Nakitare Waswa<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-inner-column elementor-element elementor-element-65626738 elementor-invisible\" data-id=\"65626738\" data-element_type=\"column\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;,&quot;animation&quot;:&quot;fadeIn&quot;,&quot;animation_mobile&quot;:&quot;none&quot;}\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-253f10a8 elementor-tablet-align-left elementor-invisible elementor-widget elementor-widget-button\" data-id=\"253f10a8\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInLeft&quot;}\" data-widget_type=\"button.default\">\n\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm elementor-animation-shrink\" href=\"https:\/\/www.jmest.org\/wp-content\/uploads\/JMESTN42354492.pdf\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">VIEW ON PUBLISHER SITE<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-dc29d0c elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"dc29d0c\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-inner-column elementor-element elementor-element-25624005 elementor-invisible\" data-id=\"25624005\" data-element_type=\"column\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;,&quot;animation&quot;:&quot;fadeIn&quot;,&quot;animation_mobile&quot;:&quot;none&quot;}\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-5a650a2d elementor-widget elementor-widget-heading\" data-id=\"5a650a2d\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Abstract<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-16588b9f elementor-invisible elementor-widget elementor-widget-text-editor\" data-id=\"16588b9f\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeIn&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Superconductivity in certain intermetallic rare-earth compounds takes place amongst it&#8217;s electron-hole elementary excitations referred to as excitons. No theoretical study has been performed taking account of these excitons. In the present attempt it has been done. Formation of Cooper pair in heavy electrons due to electron-hole interaction has been shown in our study. This knowledge is consistently used in the present investigation of bulk superconductivity in Ce-based silicons. Singlet superconducting electron-hole pairing of excitonic-type in heavy fermion system has been used to explain superconductivity, quite unlike earlier studies where conduction and felectrons and their hybridization were considered independently. It turns out that one can explain Tc = 0.6 K in CeCu2Si2 and other Ce-based silicons with tetragonal crystal structure. In these materials magnetism and superconductivity do not coexist and has nonFermi Liquid (NFL) behaviour with critical temperature Tc\u22480.7K. The superconducting cooper pairs are particle having large effective masses. The tetragonal crystal CeCu2Si2 has the layers of CeSi2 separated by layers of CuSi2. Electron \u2013 hole coupling has extensively been studied in Graphene bilayer and very little on heavy fermion systems. Graphene which is one atomic layer separated from graphite crystal. The pairing of electrons and holes due to their coulomb attraction in two parallel independently gated layers separated by a barrier which is a dielectric material shows the existence of the BCS-like pair \u2013 condensed state at weak coupling. The total energy increases with increase in temperature since a sigmoid- like curve was observed. The specific heat capacity data revealed the fact that at the transition temperature, an energy gap is created at the Fermi energy level and hence there is a sudden change in the value of specific heat capacity of these heavy fermion system. The Gaussian \u2013 like curve obtained skewed to the left suggests that superconductivity is a bulk phenomenon in these compounds. At the peak, the \ud835\udc36\ud835\udc63 was observed to be 0.4560 eV\/K. The transition temperature obtained was 0.59K<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>2025 KIBU Authors Michael Nakitare Waswa VIEW ON PUBLISHER SITE Abstract Superconductivity in certain intermetallic rare-earth compounds takes place amongst it&#8217;s electron-hole elementary excitations referred to as excitons. No theoretical study has been performed taking account of these excitons. In the present attempt it has been done. Formation of Cooper pair in heavy electrons due [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"elementor_header_footer","format":"standard","meta":{"footnotes":""},"categories":[9],"tags":[],"class_list":["post-4265","post","type-post","status-publish","format-standard","hentry","category-research-list"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Crystal Structure And Mechanism Of Superconductivity In Cerium Based Heavy Fermions - Faculty of Science<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/kibu.ac.ke\/fs\/crystal-structure-and-mechanism-of-superconductivity-in-cerium-based-heavy-fermions\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Crystal Structure And Mechanism Of Superconductivity In Cerium Based Heavy Fermions - Faculty of Science\" \/>\n<meta property=\"og:description\" content=\"2025 KIBU Authors Michael Nakitare Waswa VIEW ON PUBLISHER SITE Abstract Superconductivity in certain intermetallic rare-earth compounds takes place amongst it&#8217;s electron-hole elementary excitations referred to as excitons. 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No theoretical study has been performed taking account of these excitons. In the present attempt it has been done. 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