{"id":90444,"date":"2017-07-09T06:30:05","date_gmt":"2017-07-08T22:30:05","guid":{"rendered":"\/\/m.iemloyee.com\/?p=90444"},"modified":"2017-07-08T10:56:22","modified_gmt":"2017-07-08T02:56:22","slug":"%e5%90%88%e8%82%a5%e7%a0%94%e7%a9%b6%e9%99%a2%ef%bc%9a%e6%8b%93%e6%89%91%e5%8d%8a%e9%87%91%e5%b1%9e%e6%9d%90%e6%96%99%e7%a0%94%e7%a9%b6%e4%b8%ad%e5%8f%96%e5%be%97%e8%bf%9b%e5%b1%95","status":"publish","type":"post","link":"\/\/m.iemloyee.com\/?p=90444","title":{"rendered":"\u5408\u80a5\u7814\u7a76\u9662\uff1a\u62d3\u6251\u534a\u91d1\u5c5e\u6750\u6599\u7814\u7a76\u4e2d\u53d6\u5f97\u8fdb\u5c55"},"content":{"rendered":"<p><strong>\u3010\u6210\u679c\u7b80\u4ecb\u3011<\/strong><\/p>\n<p>\u8fd1\u671f\uff0c\u4e2d\u56fd\u79d1\u5b66\u9662\u5408\u80a5\u7269\u8d28\u79d1\u5b66\u7814\u7a76\u9662\u5f3a\u78c1\u573a\u79d1\u5b66\u4e2d\u5fc3\u7814\u7a76\u5458\u7530\u660e\u4eae\u8bfe\u9898\u7ec4\u5728\u62d3\u6251\u534a\u91d1\u5c5e\u6750\u6599\u7814\u7a76\u65b9\u9762\u53d6\u5f97\u65b0\u8fdb\u5c55\u3002\u76f8\u5173\u7814\u7a76\u7ed3\u679c\u4ee5Extremely large magnetoresistance in topological semimetal candidate pyrite PtBi<sub>2<\/sub>\u4e3a\u9898\u53d1\u8868\u5728\u8fd1\u671f\u7684\u7f8e\u56fd\u7269\u7406\u5b66\u4f1a\u671f\u520aPhysical Review Letters\u4e0a\u3002\u8be5\u7814\u7a76\u5de5\u4f5c\u53d7\u5230\u56fd\u5bb6\u81ea\u7136\u79d1\u5b66\u57fa\u91d1\u9879\u76ee\u3001\u767e\u4eba\u8ba1\u5212\u9879\u76ee\u4ee5\u53ca\u56fd\u5bb6\u91cd\u70b9\u7814\u53d1\u8ba1\u5212\u9879\u76ee\u8d44\u52a9\u3002<\/p>\n<p><strong>\u3010\u56fe\u6587\u5bfc\u8bfb\u3011<\/strong><\/p>\n<p><strong>\u56fe<\/strong><strong>1\u00a0<\/strong><strong>\u7acb\u65b9<\/strong><strong>PtBi<sub>2<\/sub><\/strong><strong>\u7684\u7535\u8f93\u8fd0\u6027\u80fd\u3002\u5728<\/strong><strong>33T<\/strong><strong>\u78c1\u573a\u4e0b\u5176\u78c1\u7535\u963b\u9ad8\u8fbe<\/strong><strong>1.12<\/strong><strong>\u00d7<\/strong><strong>107%<\/strong><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-90446 size-full\" src=\"\/\/m.iemloyee.com\/wp-content\/uploads\/2017\/07\/1-5.png\" alt=\"\" width=\"600\" height=\"304\" srcset=\"\/\/m.iemloyee.com\/wp-content\/uploads\/2017\/07\/1-5.png 600w, \/\/m.iemloyee.com\/wp-content\/uploads\/2017\/07\/1-5-300x152.png 300w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/p>\n<p>\uff08a\uff09PtBi<sub>2<\/sub>\u5728\u4e0d\u540c\u7684\u6e29\u5ea6\u4e0b\uff0c\u4e14\u5782\u76f4\u4e8e\u9ad8\uff08111\uff09\u5bf9\u79f0\u9762\u548c\u7535\u6d41\u7684\u4e0d\u540c\u573a\u5f3a\u5927\u5c0f\u4e0b\u7684MR\uff1b<\/p>\n<p>\u00a0\uff08b\uff09\u4f5c\u4e3a\u4e0d\u540c\u6e29\u5ea6\u4e0b\u53cd\u78c1\u573a\u51fd\u6570\u7684SdH\u632f\u8361\u0394\u03c1<sub>xx<\/sub>\uff0c\u63d2\u56fe\u663e\u793a\u4e86\u9ad8\u78c1\u573a\u4e0b\u632f\u8361\u5cf0\u503c\u7684\u585e\u66fc\u5206\u88c2\uff1b<\/p>\n<p>\uff08c\uff09\u4e0d\u540c\u6e29\u5ea6\u4e0bSdH\u632f\u8361\u7684FFT\u56fe\u8c31\uff1b<\/p>\n<p>\uff08d\uff09\u632f\u8361\u5206\u91cf\u5728\u4e0d\u540c\u6e29\u5ea6\u4e0b\u7684\u632f\u5e45\uff1b<\/p>\n<p>\u00a0\uff08e\uff09\u4eceSdH\u632f\u8361\u63d0\u53d6\u51fa\u7684\u4f5c\u4e3a\u53cd\u5411\u573a\u7684\u51fd\u6570Landau\u7b49\u7ea7\u6307\u6570\u3002<\/p>\n<p><strong>\u56fe<\/strong><strong>2\u00a0<\/strong><strong>\u7acb\u65b9<\/strong><strong>PtBi<sub>2<\/sub><\/strong><strong>\u7684\u80fd\u5e26\u7ed3\u6784\u548c\u8d39\u7c73\u9762\u3002\u8d39\u7c73\u9762\u9644\u8fd1\u5b58\u5728\u4e09\u79cd\u6709\u6548\u8d28\u91cf\u4e0d\u540c\u7684\u8f7d\u6d41\u5b50<\/strong><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-90447 size-full aligncenter\" src=\"\/\/m.iemloyee.com\/wp-content\/uploads\/2017\/07\/2-5.png\" alt=\"\" width=\"600\" height=\"197\" srcset=\"\/\/m.iemloyee.com\/wp-content\/uploads\/2017\/07\/2-5.png 600w, \/\/m.iemloyee.com\/wp-content\/uploads\/2017\/07\/2-5-300x99.png 300w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/p>\n<p>\uff08a\uff09\u9ec4\u94c1\u77ff\u578bPtBi<sub>2<\/sub>\u7684\u8d77\u59cb\u5e26\u7ed3\u6784\uff1b<\/p>\n<p>\uff08b\uff09\u9ec4\u94c1\u77ff\u578bPtBi<sub>2<\/sub>\u7684\u6563\u4f53\u8d39\u7c73\u9762\uff1b<\/p>\n<p>\uff08c\uff09\u7531\u9ec4\u94c1\u77ff\u578bPtBi<sub>2<\/sub>\u6784\u6210\u7684\u534a\u91d1\u5c5e\u7684\u793a\u610f\u56fe\u3002<\/p>\n<p><strong>\u3010\u7814\u7a76\u5185\u5bb9\u3011<\/strong><\/p>\n<p>\u62d3\u6251\u72c4\u62c9\u514b\u534a\u91d1\u5c5e\u662f\u76ee\u524d\u51dd\u805a\u6001\u548c\u6750\u6599\u79d1\u5b66\u9886\u57df\u7814\u7a76\u7684\u524d\u6cbf\uff0c\u5728\u672a\u6765\u4f4e\u80fd\u8017\u7535\u5b50\u5b66\u5668\u4ef6\u5e94\u7528\u4e0a\u5177\u6709\u6f5c\u5728\u4ef7\u503c\u3002\u7531\u4e8e\u5176\u7535\u5b50\u80fd\u5e26\u5177\u6709\u4e09\u7ef4\u7684\u72c4\u62c9\u514b\u9525\u7ed3\u6784\uff0c\u53ef\u89c6\u4e3a\u201c\u4e09\u7ef4\u77f3\u58a8\u70ef\u201d\u3002\u5728\u63a5\u8fd1\u80fd\u5e26\u7684\u72c4\u62c9\u514b\u70b9\uff0c\u8f7d\u6d41\u5b50\u5177\u6709\u5f88\u9ad8\u7684\u8fc1\u79fb\u7387\u5e76\u8868\u73b0\u51fa\u8d85\u5927\u7684\u7ebf\u6027\u78c1\u7535\u963b\u6548\u5e94\u7b49\u3002\u6700\u8fd1\u7406\u8bba\u5de5\u4f5c\u9884\u8a00\uff0c\u5728\u7acb\u65b9PtBi<sub>2<\/sub>\u4e2d\u53ef\u80fd\u5b58\u5728\u975e\u5e73\u5eb8\u7684\u80fd\u5e26\u7ed3\u6784\uff0c\u662f\u4e00\u79cd\u65b0\u7684\u62d3\u6251\u534a\u91d1\u5c5e\u6750\u6599\u3002\u5f3a\u78c1\u573a\u4e2d\u5fc3\u526f\u7814\u7a76\u5458\u6731\u76f8\u5fb7\u7ecf\u8fc7\u53cd\u590d\u63a2\u7d22\uff0c\u6210\u529f\u5408\u6210\u51fa\u9ad8\u8d28\u91cfPtBi<sub>2<\/sub>\u5355\u6676\u6837\u54c1\uff0c\u5176\u4f4e\u6e29\u4e0b\u5269\u4f59\u7535\u963b\u6bd4\u9ad8\u8fbe1700\u3002<\/p>\n<p>\u8bfe\u9898\u7ec4\u535a\u58eb\u7814\u7a76\u751f\u9ad8\u6587\u5e05\u548c\u7814\u7a76\u5458\u5b81\u4f1f\u5229\u7528\u7a33\u6001\u5f3a\u78c1\u573a\u5b9e\u9a8c\u88c5\u7f6e\uff0c\u7cfb\u7edf\u7814\u7a76\u4e86\u534a\u91d1\u5c5e\u7acb\u65b9\u76f8PtBi<sub>2<\/sub>\u5355\u6676\u7684\u9ad8\u573a\u78c1\u7535\u963b\u884c\u4e3a\uff0c\u53d1\u73b0\u572833T\u78c1\u573a\u4e0b\u7684\u78c1\u7535\u963b\u9ad8\u8fbe1.12\u00d7107%\u4e14\u6ca1\u6709\u8fbe\u5230\u9971\u548c\uff0c\u8d85\u8fc7\u76ee\u524d\u5df2\u77e5\u7684\u5176\u4ed6\u62d3\u6251\u534a\u91d1\u5c5e\u6750\u6599\u4e2d\u89c2\u5bdf\u5230\u7684\u6700\u5927\u78c1\u963b\u3002<\/p>\n<p>\u9ad8\u78c1\u573a\u4e0b\u7684Shubnikov de Hass\u91cf\u5b50\u632f\u8361\u5b9e\u9a8c\u7814\u7a76\u53d1\u73b0\uff0c\u7acb\u65b9PtBi<sub>2<\/sub>\u8868\u73b0\u51fa\u9ad8\u8f7d\u6d41\u5b50\u8fc1\u79fb\u7387\uff08~105cm<sup>2<\/sup>V<sup>-1<\/sup>s<sup>-1<\/sup>\uff09\u548c\u8d85\u5927\u7684\u78c1\u7535\u963b\u6548\u5e94\uff0c\u800c\u4e14\u5b58\u5728\u975e\u5e73\u5eb8\u7684\u8d1d\u91cc\u76f8\u4f4d\uff0c\u5c5e\u4e8e\u65b0\u4e00\u7c7b\u62d3\u6251\u72c4\u62c9\u514b\u534a\u91d1\u5c5e\u6750\u6599\u3002\u5f3a\u78c1\u573a\u4e2d\u5fc3\u7814\u7a76\u5458\u90dd\u5b81\u5b81\u4ee5\u53ca\u5317\u4eac\u5e94\u7528\u7269\u7406\u4e0e\u8ba1\u7b97\u6570\u5b66\u7814\u7a76\u6240\u526f\u7814\u7a76\u5458\u90d1\u6cd5\u4f1f\u901a\u8fc7\u7b2c\u4e00\u6027\u539f\u7406\u65b9\u6cd5\uff0c\u4ece\u80fd\u5e26\u8ba1\u7b97\u4e0a\u786e\u8ba4\u4e86PtBi<sub>2<\/sub>\u4e2d\u5b58\u5728\u72c4\u62c9\u514b\u70b9\uff0c\u4e14\u8d39\u7c73\u9762\u9644\u8fd1\u5b58\u5728\u4e09\u79cd\u6709\u6548\u8d28\u91cf\u4e0d\u540c\u7684\u8f7d\u6d41\u5b50\uff0c\u4e0e\u5b9e\u9a8c\u7ed3\u679c\u4e00\u81f4\u3002\u3000\u3000<\/p>\n<p>\u539f\u6587\u94fe\u63a5\uff1a<a href=\"http:\/\/www.cas.cn\/syky\/201707\/t20170704_4607335.shtml\" target=\"_blank\" rel=\"noopener noreferrer\">http:\/\/www.cas.cn\/syky\/201707\/t20170704_4607335.shtml<\/a>\u3002<\/p>\n<p>\u6587\u732e\u94fe\u63a5\uff1a<a href=\"https:\/\/journals.aps.org\/prl\/abstract\/10.1103\/PhysRevLett.118.256601\" target=\"_blank\" rel=\"noopener noreferrer\">Extremely Large Magnetoresistance in a Topological Semimetal Candidate Pyrite PtBi2<\/a>\uff08Physical Review Letters\uff0c2017\uff0cDOI\uff1ahttps:\/\/doi.org\/10.1103\/PhysRevLett.118.256601\uff09<\/p>\n<p>\u672c\u6587\u7531\u6750\u6599\u4eba\u7f16\u8f91\u90e8\u738b\u51b0\u7f16\u8f91\uff0c<a href=\"\/\/m.iemloyee.com\/25127.html\" target=\"_blank\" rel=\"noopener noreferrer\">\u70b9\u6211\u52a0\u5165\u6750\u6599\u4eba\u7f16\u8f91\u90e8<\/a>\u3002<\/p>\n<p>\u6750\u6599\u6d4b\u8bd5\uff0c\u6570\u636e\u5206\u6790\uff0c\u4e0a<a href=\"http:\/\/www.ceshigu.com\/\" target=\"_blank\" rel=\"noopener noreferrer\">\u6d4b\u8bd5\u8c37<\/a>\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u3010\u6210\u679c\u7b80\u4ecb\u3011 \u8fd1\u671f\uff0c\u4e2d\u56fd\u79d1\u5b66\u9662\u5408\u80a5\u7269\u8d28\u79d1\u5b66\u7814\u7a76\u9662\u5f3a\u78c1\u573a\u79d1\u5b66\u4e2d\u5fc3\u7814\u7a76\u5458\u7530\u660e\u4eae\u8bfe\u9898\u7ec4\u5728\u62d3\u6251\u534a\u91d1\u5c5e\u6750\u6599\u7814\u7a76\u65b9\u9762\u53d6\u5f97\u65b0\u8fdb\u5c55\u3002\u76f8\u5173\u7814\u7a76\u7ed3\u679c\u4ee5Extremely large&#8230;<\/p>\n","protected":false},"author":53,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[],"class_list":["post-90444","post","type-post","status-publish","format-standard","hentry","category-keji"],"_links":{"self":[{"href":"\/\/m.iemloyee.com\/index.php?rest_route=\/wp\/v2\/posts\/90444"}],"collection":[{"href":"\/\/m.iemloyee.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"\/\/m.iemloyee.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"\/\/m.iemloyee.com\/index.php?rest_route=\/wp\/v2\/users\/53"}],"replies":[{"embeddable":true,"href":"\/\/m.iemloyee.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=90444"}],"version-history":[{"count":5,"href":"\/\/m.iemloyee.com\/index.php?rest_route=\/wp\/v2\/posts\/90444\/revisions"}],"predecessor-version":[{"id":90531,"href":"\/\/m.iemloyee.com\/index.php?rest_route=\/wp\/v2\/posts\/90444\/revisions\/90531"}],"wp:attachment":[{"href":"\/\/m.iemloyee.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=90444"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"\/\/m.iemloyee.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=90444"},{"taxonomy":"post_tag","embeddable":true,"href":"\/\/m.iemloyee.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=90444"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}