{"id":1816,"date":"2021-07-27T13:47:37","date_gmt":"2021-07-27T17:47:37","guid":{"rendered":"http:\/\/girsh.rutgers.edu\/?p=1816"},"modified":"2022-04-07T17:31:08","modified_gmt":"2022-04-07T21:31:08","slug":"research-update-lattice-dynamics-of-excitonic-insulator-ta2nise1-xsx5","status":"publish","type":"post","link":"https:\/\/girsh.rutgers.edu\/index.php\/2021\/07\/27\/research-update-lattice-dynamics-of-excitonic-insulator-ta2nise1-xsx5\/","title":{"rendered":"Research Update: lattice dynamics of excitonic insulator Ta2Ni(Se1-xSx)5"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"1816\" class=\"elementor elementor-1816\">\n\t\t\t\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-6fe2cd7c elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"6fe2cd7c\" 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-top-column elementor-element elementor-element-5bce9d16\" data-id=\"5bce9d16\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-20137ef6 elementor-widget elementor-widget-text-editor\" data-id=\"20137ef6\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<!-- wp:paragraph {\"fontSize\":\"medium\"} -->\n<p class=\"has-medium-font-size\">What role does crystalline lattice play in the emergence of electronic order? Following our previous work on the excitonic soft mode and emergent coherence of Ta2NiSe5 (WebLink:\u00a0<a href=\"https:\/\/www.nature.com\/articles\/s41535-021-00351-4\">npj Quantum Materials 6, 52 (2021)<\/a>\u00a0ArXiv Link:\u00a0<a href=\"https:\/\/arxiv.org\/abs\/2007.07344\">arXiv:2007.07344<\/a>\u00a0PDF:\u00a0<a href=\"http:\/\/girsh.rutgers.edu\/wp-content\/uploads\/2021\/07\/Ta2NiSe5_npjQuantumMater.6.52.pdf\">File<\/a>), we explore the lattice dynamics of the excitonic insulator candidate family Ta2Ni(Se1-xSx)5 by means of Raman scattering. Strong interactions between optical phonons and a continuum of soft quadrupolar excitons lead to broad asymmetric lineshapes and anomalous temperature dependence of the phonon signatures. They further develop a model allowing to disentangle the intrinsic responses of excitons and phonons and assess their respective contributions in the phase diagram.\u00a0<\/p>\n<!-- \/wp:paragraph -->\n\n<!-- wp:paragraph {\"fontSize\":\"medium\"} -->\n<p class=\"has-medium-font-size\">\nWebLink:\u00a0<a href=\"https:\/\/journals.aps.org\/prb\/abstract\/10.1103\/PhysRevB.104.045102\">PhysRevB.104.045102 (2021)<\/a>\u00a0ArXiv Link:\u00a0<a href=\"https:\/\/arxiv.org\/abs\/2102.07912\">arXiv:2102.07912<\/a>\u00a0PDF:\u00a0<a href=\"http:\/\/girsh.rutgers.edu\/wp-content\/uploads\/2021\/07\/Ta2NiSe5_PhysRevB.104.045102.pdf\">File<\/a>\u00a0(Editors&#8217; Suggestion)<\/p>\n<!-- \/wp:paragraph -->\n\n<!-- wp:image {\"align\":\"center\",\"id\":1821,\"width\":319,\"height\":315,\"sizeSlug\":\"large\"} -->\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img fetchpriority=\"high\" decoding=\"async\" class=\"wp-image-1821\" src=\"http:\/\/girsh.rutgers.edu\/wp-content\/uploads\/2021\/07\/Screen-Shot-2021-07-27-at-1.46.12-PM-1024x1014.png\" alt=\"\" width=\"319\" height=\"315\" srcset=\"https:\/\/girsh.rutgers.edu\/wp-content\/uploads\/2021\/07\/Screen-Shot-2021-07-27-at-1.46.12-PM-1024x1014.png 1024w, https:\/\/girsh.rutgers.edu\/wp-content\/uploads\/2021\/07\/Screen-Shot-2021-07-27-at-1.46.12-PM-300x297.png 300w, https:\/\/girsh.rutgers.edu\/wp-content\/uploads\/2021\/07\/Screen-Shot-2021-07-27-at-1.46.12-PM-768x761.png 768w, https:\/\/girsh.rutgers.edu\/wp-content\/uploads\/2021\/07\/Screen-Shot-2021-07-27-at-1.46.12-PM.png 1246w\" sizes=\"(max-width: 319px) 100vw, 319px\" \/><\/figure>\n<\/div>\n<!-- \/wp:image -->\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>What role does crystalline lattice play in the emergence of electronic order? Following our previous work on the excitonic soft mode and emergent coherence of Ta2NiSe5 (WebLink:\u00a0npj Quantum Materials 6, 52 (2021)\u00a0ArXiv Link:\u00a0arXiv:2007.07344\u00a0PDF:\u00a0File), we explore the lattice dynamics of the excitonic insulator candidate family Ta2Ni(Se1-xSx)5 by means of Raman scattering. Strong interactions between optical phonons &hellip;<\/p>\n<p class=\"read-more\"> <a class=\"\" href=\"https:\/\/girsh.rutgers.edu\/index.php\/2021\/07\/27\/research-update-lattice-dynamics-of-excitonic-insulator-ta2nise1-xsx5\/\"> <span class=\"screen-reader-text\">Research Update: lattice dynamics of excitonic insulator Ta2Ni(Se1-xSx)5<\/span> Read More &raquo;<\/a><\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"_links":{"self":[{"href":"https:\/\/girsh.rutgers.edu\/index.php\/wp-json\/wp\/v2\/posts\/1816"}],"collection":[{"href":"https:\/\/girsh.rutgers.edu\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/girsh.rutgers.edu\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/girsh.rutgers.edu\/index.php\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/girsh.rutgers.edu\/index.php\/wp-json\/wp\/v2\/comments?post=1816"}],"version-history":[{"count":8,"href":"https:\/\/girsh.rutgers.edu\/index.php\/wp-json\/wp\/v2\/posts\/1816\/revisions"}],"predecessor-version":[{"id":2112,"href":"https:\/\/girsh.rutgers.edu\/index.php\/wp-json\/wp\/v2\/posts\/1816\/revisions\/2112"}],"wp:attachment":[{"href":"https:\/\/girsh.rutgers.edu\/index.php\/wp-json\/wp\/v2\/media?parent=1816"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/girsh.rutgers.edu\/index.php\/wp-json\/wp\/v2\/categories?post=1816"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/girsh.rutgers.edu\/index.php\/wp-json\/wp\/v2\/tags?post=1816"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}