{"613072":{"#nid":"613072","#data":{"type":"event","title":"School of Physics - Condensed Matter Seminar - Professor Erik Henriksen","body":[{"value":"\u003Ch2\u003E\u003Cstrong\u003ECharge-doping a Mott Insulator via Graphene Heterostructures\u003C\/strong\u003E\u003C\/h2\u003E\r\n\r\n\u003Cdiv\u003E\u003Cstrong\u003EErik Henriksen,\u0026nbsp;\u003C\/strong\u003EAssistant Professor,\u0026nbsp;\u003C\/div\u003E\r\n\r\n\u003Cdiv\u003E\u003Cstrong\u003EInstitute of Materials Science and Engineering\u003C\/strong\u003E\u003C\/div\u003E\r\n\r\n\u003Cdiv\u003E\u003Cstrong\u003EWashington University, St. Louis\u003C\/strong\u003E\u003C\/div\u003E\r\n\r\n\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u003Cstrong\u003EAbstract:\u003C\/strong\u003E\u003C\/p\u003E\r\n\r\n\u003Cp\u003EA-RuCl3 is a layered antiferromagnetic Mott insulator that is believed to host a Kitaev quantum spin liquid, and notably there has been a claim for non-Abelian transport seen in a quantized thermal Hall conductance experiment. Seeking a means to access this physics by electronic means, we have begun exploring this material by exfoliation a la graphene. In particular, we have incorporated RuCl3 flakes into so-called van der Waals heterostructures.\u003C\/p\u003E\r\n\r\n\u003Cp\u003EWhile the electrical conductivity of RuCl3 alone is seen to drop like a rock with decreasing temperature, when placed in close proximity to monolayer graphene we observe an anomalously high conductivity through the combined system. Moreover, we find evidence of multiband transport and clear signatures of a \u0026#39;critical resistivity\u0026#39; due to electron scattering by spin fluctuations near a magnetic phase transition. All of these effects vary with an applied gate voltage. It appears that proximity to graphene induces a charge transfer to RuCl3 that is sensitive to and perhaps controllable by an external voltage.\u003C\/p\u003E\r\n","summary":null,"format":"limited_html"}],"field_subtitle":"","field_summary":"","field_summary_sentence":[{"value":"Join the School of Physics as they present their Condensed Matter Seminar featuring guest speaker  Erik Henriksen. "}],"uid":"32022","created_gmt":"2018-10-22 14:26:59","changed_gmt":"2018-10-22 18:01:13","author":"Farlenthia Walker","boilerplate_text":"","field_publication":"","field_article_url":"","field_event_time":{"event_time_start":"2018-11-01T16:00:00-04:00","event_time_end":"2018-11-01T17:00:00-04:00","event_time_end_last":"2018-11-01T17:00:00-04:00","gmt_time_start":"2018-11-01 20:00:00","gmt_time_end":"2018-11-01 21:00:00","gmt_time_end_last":"2018-11-01 21:00:00","rrule":null,"timezone":"America\/New_York"},"extras":[],"hg_media":{"613071":{"id":"613071","type":"image","title":"Erik Henriksen","body":null,"created":"1540217658","gmt_created":"2018-10-22 14:14:18","changed":"1540217658","gmt_changed":"2018-10-22 14:14:18","alt":"","file":{"fid":"233402","name":"Erik Henriksen.jpg","image_path":"\/sites\/default\/files\/images\/Erik%20Henriksen.jpg","image_full_path":"http:\/\/www.tlwarc.hg.gatech.edu\/\/sites\/default\/files\/images\/Erik%20Henriksen.jpg","mime":"image\/jpeg","size":7547,"path_740":"http:\/\/www.tlwarc.hg.gatech.edu\/sites\/default\/files\/styles\/740xx_scale\/public\/images\/Erik%20Henriksen.jpg?itok=4O84Ef-Q"}}},"media_ids":["613071"],"groups":[{"id":"217141","name":"Georgia Tech Materials Institute"}],"categories":[],"keywords":[],"core_research_areas":[],"news_room_topics":[],"event_categories":[{"id":"1795","name":"Seminar\/Lecture\/Colloquium"}],"invited_audience":[{"id":"78761","name":"Faculty\/Staff"},{"id":"78771","name":"Public"},{"id":"78751","name":"Undergraduate students"}],"affiliations":[],"classification":[],"areas_of_expertise":[],"news_and_recent_appearances":[],"phone":[],"contact":[{"value":"\u003Cp\u003E\u003Ca href=\u0022mailto:zjiang33@gatech.edu\u0022\u003EZhigang Jiang\u003C\/a\u003E -\u0026nbsp;Associate Professor\u003C\/p\u003E\r\n\r\n\u003Cp\u003E(404) 385-3906\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\r\n","format":"limited_html"}],"email":[],"slides":[],"orientation":[],"userdata":""}}}