{"id":591244,"date":"2019-03-13T09:30:03","date_gmt":"2019-03-13T13:30:03","guid":{"rendered":"https:\/\/spaceweekly.com\/?guid=69491efe7c32aba965ace0cdc436c9d3"},"modified":"2019-03-13T09:30:03","modified_gmt":"2019-03-13T13:30:03","slug":"quantum-critical-conductivity-of-the-dirac-fluid-in-graphene-2","status":"publish","type":"post","link":"https:\/\/spaceweekly.com\/?p=591244","title":{"rendered":"Quantum-critical conductivity of the Dirac fluid in graphene"},"content":{"rendered":"<p>Graphene is expected to behave like a quantum-critical, relativistic plasma known as &#8220;Dirac fluid&#8221; near charge neutrality in which massless electrons and holes rapidly collide. In a recent study now published in Science, Patrick Gallagher and co-workers at the departments of physics and materials science in the U.S., Taiwan, China and Japan used on-chip terahertz spectroscopy and measured the frequency-dependent optical conductivity of graphene between 77 K and 300 K electron temperatures for the first time. Additionally, the scientists observed the quantum-critical scattering rate characteristic of the Dirac fluid. At higher doping, Gallagher et al. uncovered two distinct current-carrying modes with zero and nonzero total momenta as a manifestation of relativistic hydrodynamics.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Graphene is expected to behave like a quantum-critical, relativistic plasma known as &#8220;Dirac fluid&#8221; near charge neutrality in which massless electrons and holes rapidly collide. In a recent study now published in Science, Patrick Gallagher and co-worker&#8230;<\/p>\n","protected":false},"author":0,"featured_media":615444,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[],"tags":[],"class_list":["post-591244","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry"],"_links":{"self":[{"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/posts\/591244","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=591244"}],"version-history":[{"count":1,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/posts\/591244\/revisions"}],"predecessor-version":[{"id":591245,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/posts\/591244\/revisions\/591245"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/media\/615444"}],"wp:attachment":[{"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=591244"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=591244"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=591244"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}