{"id":8034,"date":"2023-05-23T09:19:44","date_gmt":"2023-05-23T16:19:44","guid":{"rendered":"http:\/\/physikon.net\/?p=8034"},"modified":"2023-05-25T18:53:55","modified_gmt":"2023-05-26T01:53:55","slug":"8034","status":"publish","type":"post","link":"http:\/\/physikon.net\/?p=8034","title":{"rendered":"Determining the Upper Critical Field for N-Doped Lutetium Hydride Directly from the Source Data Files in Dasenbrock-Gammon et al., Nature <u>615<\/u>, 244 (2023)"},"content":{"rendered":"<p><!--more--><\/p>\n<hr \/>\n<p style=\"text-align: justify;\"><strong>Determining the Upper Critical Magnetic Field for N-Doped Lutetium Hydride Directly from the Source Data Files in Dasenbrock-Gammon et al., Nature <u>615<\/u>, 244 (2023)<\/strong>, D. R. Harshman and A. T. Fiory [<a href=\"https:\/\/doi.org\/10.48550\/arXiv.2305.12065\">arXiv<\/a>]\n<p style=\"text-align: justify;\">The Ginzburg-Landau-based upper critical magnetic field H<sub>C2<\/sub> (0) \u2248 88 T for N-doped lutetium hydride, reported in Dasenbrock-Gammon et al., Nature <b>615<\/b>, 244 (2023), is obtained therein by modeling resistance behavior, defining transitions widths, and applying magnetic fields H = 1 T and 3 T. A method is presented herein for determining the critical temperature <em>T<\/em><sub>C<\/sub>(<em>H<\/em>) directly from the resistance drops in the source data, implying a temperature slope -d<em>H<\/em><sub>C2<\/sub>\/d<em>T<\/em> of 0.46(6) \u2212 0.51(5) T\/K and, by applying pure BCS theory, an <em>H<\/em><sub>C2<\/sub>(0) of 71(10) \u2212 79(8) T.<\/p>\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" src=\"http:\/\/physikon.net\/wp-content\/uploads\/hc2-7.jpg\" alt=\"\" class=\"wp-image-8043\"\/><figcaption class=\"wp-element-caption\">Variation of applied field H with temperatures <em>T<\/em> = <em>T<\/em><sub>3\u03c3<\/sub> (solid symbols) and <em>T<\/em> = <em>T<\/em><sub>onset<\/sub> (open symbols) and corresponding linear fits given by solid and dashed lines, respectively. <em>P<\/em> = 15 kbar.<\/figcaption><\/figure>\n\n\n\n<p>Dale R. Harshman and Anthony T. Fiory, <a href=\"https:\/\/arxiv.org\/abs\/2305.12065v1\">arXiv:2305.12065 [cond-mat.supr-con] (2023)<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[9,8,28],"tags":[],"class_list":["post-8034","post","type-post","status-publish","format-standard","hentry","category-high-tc-superconductivity","category-high-tc-theory","category-transition-temperature"],"_links":{"self":[{"href":"http:\/\/physikon.net\/index.php?rest_route=\/wp\/v2\/posts\/8034","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/physikon.net\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/physikon.net\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/physikon.net\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/physikon.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=8034"}],"version-history":[{"count":10,"href":"http:\/\/physikon.net\/index.php?rest_route=\/wp\/v2\/posts\/8034\/revisions"}],"predecessor-version":[{"id":8069,"href":"http:\/\/physikon.net\/index.php?rest_route=\/wp\/v2\/posts\/8034\/revisions\/8069"}],"wp:attachment":[{"href":"http:\/\/physikon.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=8034"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/physikon.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=8034"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/physikon.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=8034"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}