{"id":10863,"date":"2020-01-30T12:06:14","date_gmt":"2020-01-30T17:06:14","guid":{"rendered":"https:\/\/web.uri.edu\/physics\/?page_id=10863"},"modified":"2020-01-30T12:06:14","modified_gmt":"2020-01-30T17:06:14","slug":"abstract02-05-2020-yuanxi-wang","status":"publish","type":"page","link":"https:\/\/web.uri.edu\/physics\/abstract02-05-2020-yuanxi-wang\/","title":{"rendered":"Abstract:02.05.2020-Yuanxi Wang"},"content":{"rendered":"<h1>uri physics colloquium<\/h1>\n<h3>First-principles theory of electron-phonon physics in 2D materials&nbsp;<\/h3>\n<p>Dr. Yuanxi Wang<\/p>\n<div><span style=\"font-family: arial, sans-serif\">Material Research Institute<\/span><\/div>\n<div><span style=\"font-family: arial, sans-serif\">Pennsylvania State University<\/span><\/div>\n<div><span style=\"font-family: arial, sans-serif\">University Park, Pennsylvania<\/span><\/div>\n<p>Wednesday, Feb 05, 2020<\/p>\n<p>4 pm, East Hall Room 112<\/p>\n<h3>abstract<\/h3>\n<p>The isolation of atomically thin, two-dimensional materials from their bulk parent materials allows a variety of novel physical phenomena&nbsp;that derive from their 2D form. In this talk, I will focus on electron-phonon interactions in a prototypical 2D semiconductor and a 2D metal. For the semiconductor case, I will discuss a first-principles theory for resonant Raman scattering, revealing how electron-phonon interactions are strongly regulated by the presence of excitons \u2013 correlated electron-hole pairs \u2013 due to the reduced screening in a dichalcogenide material. For the metal case, I will show how the seemingly free-electron-like electronic structure of air-stable 2D gallium&nbsp;can host electron-phonon interactions strong enough to support conventional superconductivity.&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>uri physics colloquium First-principles theory of electron-phonon physics in 2D materials&nbsp; Dr. Yuanxi Wang Material Research Institute Pennsylvania State University University Park, Pennsylvania Wednesday, Feb 05, 2020 4 pm, East Hall Room 112 abstract The isolation of atomically thin, two-dimensional materials from their bulk parent materials allows a variety of novel physical phenomena&nbsp;that derive from [&hellip;]<\/p>\n","protected":false},"author":4861,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"page-twocol.php","meta":{"_acf_changed":false,"footnotes":"","_links_to":"","_links_to_target":""},"class_list":["post-10863","page","type-page","status-publish","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/web.uri.edu\/physics\/wp-json\/wp\/v2\/pages\/10863","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/web.uri.edu\/physics\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/web.uri.edu\/physics\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/web.uri.edu\/physics\/wp-json\/wp\/v2\/users\/4861"}],"replies":[{"embeddable":true,"href":"https:\/\/web.uri.edu\/physics\/wp-json\/wp\/v2\/comments?post=10863"}],"version-history":[{"count":0,"href":"https:\/\/web.uri.edu\/physics\/wp-json\/wp\/v2\/pages\/10863\/revisions"}],"wp:attachment":[{"href":"https:\/\/web.uri.edu\/physics\/wp-json\/wp\/v2\/media?parent=10863"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}