{"id":237744,"date":"2022-05-29T06:44:48","date_gmt":"2022-05-28T22:44:48","guid":{"rendered":"\/\/m.iemloyee.com\/?p=237744"},"modified":"2022-05-27T18:44:56","modified_gmt":"2022-05-27T10:44:56","slug":"%e6%9c%80%e6%96%b0science%ef%bc%9a%e9%9d%9e%e7%a3%81%e6%80%a7%e5%8c%96%e5%ad%a6%e8%ae%a1%e9%87%8f%e6%9d%90%e6%96%99%e7%9a%84%e5%85%a8%e6%8b%93%e6%89%91%e5%b8%a6","status":"publish","type":"post","link":"\/\/m.iemloyee.com\/?p=237744","title":{"rendered":"\u6700\u65b0Science\uff1a\u975e\u78c1\u6027\u5316\u5b66\u8ba1\u91cf\u6750\u6599\u7684\u5168\u62d3\u6251\u5e26"},"content":{"rendered":"
\u4e00\u3001\u5bfc\u8bfb<\/strong><\/p>\n \u56fa\u4f53\u7269\u7406\u9886\u57df\u5728\u8fc7\u53bb\u768415\u5e74\u91cc\u53d6\u5f97\u4e86\u5de8\u5927\u7684\u53d1\u5c55\uff0c\u8fd9\u5728\u5f88\u5927\u7a0b\u5ea6\u4e0a\u662f\u7531\u975e\u78c1\u6027\u6676\u4f53\u4e2d\u62d3\u6251\u975e\u5e73\u5eb8\u7535\u5b50\u5e26\u7684\u53d1\u73b0\uff0c\u4f8b\u5982\u62d3\u6251\u7edd\u7f18\u4f53(TI)\uff0c\u62d3\u6251\u6676\u4f53\u7edd\u7f18\u4f53\uff08TCI\uff09\u548c\u62d3\u6251\u534a\u91d1\u5c5e\u3002\u62d3\u6251\u4e0a\u7684\u975e\u5e73\u5eb8\u6750\u6599\u66fe\u7ecf\u88ab\u8ba4\u4e3a\u662f\u610f\u5916\u800c\u975e\u89c4\u5f8b\u6027\u7684\uff0c\u6700\u8fd1\u5f15\u5165\u7684\u62d3\u6251\u91cf\u5b50\u5316\u5b66\u7406\u8bba\uff08TQC\uff09\u548c\u57fa\u4e8e\u5bf9\u79f0\u6027\u7684\u6307\u6807(SIs)\uff0c\u4fc3\u8fdb\u4e86\u65b0\u7684\u7a33\u5b9a\u7684\u7269\u8d28\u62d3\u6251\u76f8\u7684\u53d1\u73b0\uff0c\u5e76\u4f7f\u8d39\u7c73\u80fd(EF<\/sub><\/em>)\u4e2d\u5927\u89c4\u6a21\u641c\u7d22\u5b9e\u9a8c\u53ef\u53ca\u7684\u62d3\u6251\u6750\u6599\u6210\u4e3a\u53ef\u80fd\u3002\u9ad8\u901a\u91cf\u8ba1\u7b97\u8868\u660e\uff0c\u540c\u65e9\u671f\u7684\u731c\u6d4b\u76f8\u6bd4\uff0c\u66f4\u591a\u7684\u6750\u6599\u5e94\u8be5\u5177\u6709\u62d3\u6251\u6027\u3002\u5c06\u8fd9\u79cd\u65b9\u6cd5\u5e94\u7528\u5230\u65e0\u673a\u6676\u4f53\u7ed3\u6784\u6570\u636e\u5e93(ICSD)\u4e2d\u6240\u6709\u53ef\u5904\u7406\u7684\u6761\u76ee\uff0c\u53ef\u4ee5\u63a2\u7d22\u6750\u6599\u5728\u8d39\u7c73\u80fd\u91cf\u548c\u8fdc\u79bb\u8d39\u7c73\u80fd\u91cf\u65f6\u7684\u80fd\u5e26\u7ed3\u6784\u3002<\/p>\n \u4e8c\u3001\u6210\u679c\u63a0\u5f71<\/strong><\/p>\n \u8fd1\u65e5\uff0c\u7f8e\u56fd\u666e\u6797\u65af\u987f\u5927\u5b66Nicolas Regnault\u56e2\u961f\u8054\u5408\u897f\u73ed\u7259\u56fd\u9645\u7269\u7406\u4e2d\u5fc3Maia G. Vergniory\u3001\u9ebb\u7701\u7406\u5de5\u5b66\u9662Benjamin J. Wieder\u7b49\u5b66\u8005\uff0c\u5728Science<\/em><\/strong>\u4e0a\u62a5\u9053\u4e86\u8d39\u7c73\u80fd\u548c\u8fdc\u79bb\u8d39\u7c73\u80fd\u5904\u5168\u80fd\u5e26\u4e2d\u7a33\u5b9a\u548c\u8106\u5f31\u76f8\u62d3\u6251\u7ed3\u6784\u7684\u76ee\u5f55\uff0c\u5c06ICSD\u5347\u7ea7\u4e3a\u53ef\u7528\u7684\u62d3\u6251\u6750\u6599\u6570\u636e\u5e93\u3002\u5728\u5316\u5b66\u8ba1\u91cf\u6750\u6599ICSD\u768496,196\u53ef\u5904\u7406\u7684\u6761\u76ee\u4e2d\u8ba1\u7b97\u4e86\u6240\u6709\u80fd\u5e26\u7684\u7535\u5b50\u7ed3\u6784\uff0c\u62d3\u6251\u7c7b\uff0c\u5bf9\u79f0\u6027\u6307\u6807\u3002\u6839\u636e\u5e38\u89c1\u7684\u5316\u5b66\u5f0f\u3001\u6676\u4f53\u7ed3\u6784\u548c\u62d3\u6251\u7ed3\u6784\uff0c\u5c06\u5176\u5f52\u7c7b\u4e3a38,298\u79cd\u72ec\u7279\u7684\u6750\u6599\u3002\u4ece\u800c\u5b8c\u6210\u4e86\u5df2\u77e5\u975e\u78c1\u6027\u6750\u6599\u7684\u5bf9\u79f0\u5e26\u62d3\u6251\u7ed3\u6784\uff0c\u4f7f\u5f97\u62d3\u6251\u6750\u6599\u76ee\u5f55\u4e2d\u53ef\u53ca\u7684\u6750\u6599\u6bd4\u4e4b\u524d\u591a\u4e86\u4e00\u500d\u3002\u901a\u8fc7\u9ad8\u901a\u4eae\u8ba1\u7b97\uff0c\u7814\u7a76\u53d1\u73b0\u4e86\u4e00\u7c7b\u65b0\u578b\u62d3\u6251\u6750\u6599\u7684\u5b58\u5728\uff0c\u5373\u91cd\u590d\u62d3\u6251<\/strong>(RTopo)<\/strong>\u6750\u6599<\/strong>\uff0c\u5728EF<\/sub><\/em>\u5904\u5177\u6709\u80fd\u91cf\u9694\u79bb\u8106\u6027\u5e26\u7684\u5f3a\u5316\u62d3\u6251\u534a\u91d1\u5c5e\uff0c\u5728EF<\/sub><\/em>\u5904\u53ca\u5176\u4e0b\u65b9\u5177\u6709\u7a33\u5b9a\u62d3\u6251\u7edd\u7f18\u95f4\u9699\uff1b\u8d85\u62d3\u6251<\/strong>(STopo)<\/strong>\u6750\u6599<\/strong>\uff0c\u5176\u4e2d\u7684STopo\u6750\u6599\u6838\u58f3\u4e4b\u4e0a\u7684\u6bcf\u4e00\u4e2a\u80fd\u91cf\u5b64\u7acb\u7684\u5e26\u96c6\u90fd\u662f\u7a33\u5b9a\u7684\u62d3\u6251\u3002\u7814\u7a76\u7ed3\u679c\u5c06\u5148\u524d\u62d3\u6251\u6750\u6599\u7684\u51e0\u4e2a\u5b9e\u9a8c\u7814\u7a76\u91cd\u65b0\u80cc\u666f\u5316\uff08DOI: 10.1038 \/s41586-019-0954-4\u00a0\uff0cDOI: 10.1038\/s41586-022-04519-1\uff09\u3002\u7814\u7a76\u53d1\u73b0\uff0c\u5148\u524d\u5206\u522b\u663e\u793a\u4e3a\u6fc0\u5b50\u7edd\u7f18\u4f53\u76f8\u548c\u7535\u8377\u5bc6\u5ea6\u6ce2\u76f8\u7684\u8fc7\u6e21\u91d1\u5c5e\u786b\u65cf\u5316\u5408\u7269SG 15 (C\/2c<\/em>) Ta2<\/sub>NiSe5<\/sub>\u548cSG 12 (C2\/m<\/em>) Ta2<\/sub>NiSe7<\/sub>\u662f\u6b63\u5e38\u72b6\u6001\u4e0b\u7684\u4e09\u7ef4\u62d3\u6251\u7edd\u7f18\u5b50(TIs)\u3002\u6b64\u5916\uff0c\u7814\u7a76\u8fd8\u53d1\u73b0SG 166 \u00a0TI\u83f1\u9762\u4f53\u94cb\u548cSG 16\u95f4\u63a5\u80fd\u9699TI Bi2<\/sub>Mg3<\/sub> \u90fd\u662f RTopo\u548cSTopo\u6750\u6599\u3002\u5148\u524d\u5bf9Bi2<\/sub>Mg3<\/sub>\u7684ARPES\u7814\u7a76\u5df2\u7ecf\u8bc1\u5b9e EF<\/sub><\/em>\u4ee5\u4e0b\u5b58\u5728\u201c\u8868\u9762\u5171\u632f\u5e26\u201d\uff0c\u5728\u8fd9\u9879\u5de5\u4f5c\u4e2d\uff0c\u53d1\u73b0\u8868\u9762\u5171\u632f\u5e26\u5b9e\u9645\u4e0a\u662fRTopo Dirac-cone\u5e73\u9762\u6001\u3002\u8ba1\u7b97\u8868\u660e\uff0c\u5728EF<\/sub><\/em>\u5904\uff0c52.65%\u7684\u6750\u6599\u662f\u62d3\u6251\u7684\uff0c\u5927\u69822\/3\u80fd\u5e26\u4e2d\u6240\u6709\u6750\u6599\u90fd\u8868\u73b0\u51fa\u5bf9\u79f0\u7684\u7a33\u5b9a\u62d3\u6251\u7ed3\u6784\uff0c\u4ee4\u4eba\u9707\u60ca\u7684\u662f\uff0c87.99% \u7684\u6750\u6599\u81f3\u5c11\u542b\u6709\u4e00\u4e2a\u7a33\u5b9a\u7684\u6216\u8106\u5f31\u7684(\u6676\u4f53)\u62d3\u6251\u5e26\u3002<\/p>\n \u4e09\u3001<\/strong> \u6838\u5fc3\u521b\u65b0\u70b9<\/strong><\/p>\n \u221a\u57fa\u4e8e\u62d3\u6251\u91cf\u5b50\u5316\u5b66\u7406\u8bba\uff08TQC\uff09\u548c\u5bf9\u79f0\u6027\u7684\u6307\u6807(SIs)\u8fdb\u884c\u6570\u636e\u96c6\u751f\u6210<\/p>\n \u221a\u5efa\u7acb\u4e86\u975e\u78c1\u6027\u5316\u5b66\u8ba1\u91cf\u6750\u6599\u7684\u5168\u62d3\u6251\u5e26\u76ee\u5f55<\/p>\n \u221a \u53d1\u73b0\u5177\u6709\u65b0\u578b\u62d3\u6251\u7ed3\u6784\u7684\u5019\u9009\u6750\u6599\u7279\u6027<\/p>\n \u56db\u3001<\/strong> \u6570\u636e\u6982\u89c8<\/strong><\/p>\n \u56fe<\/strong>1 <\/strong>\u751f\u6210\u62d3\u6251\u6750\u6599\u6570\u636e\u5e93\u7684\u793a\u610f\u56fe \u00a9 2022 AAAS<\/p>\n \u56fe<\/strong>2<\/strong> ICSD\u4e2d\u5316\u5b66\u8ba1\u91cf\u6750\u6599\u7684\u62d3\u6251\u7ed3\u6784 \u00a9 2022 AAAS<\/p>\n \u56fe<\/strong>3<\/strong> \u5728EF<\/sub><\/em>\u5904\u5177\u6709\u62d3\u6251\u7279\u5f81\u7684\u5019\u9009\u6750\u6599 \u00a9 2022 AAAS<\/p>\n \u56fe<\/strong>4<\/strong> Ta2<\/sub>NiSe5<\/sub>\u548cTa2<\/sub>NiSe7<\/sub>\u7684\u62d3\u6251\u80fd\u5e26\u53cd\u8f6c\u8dc3\u8fc1 \u00a9 2022 AAAS<\/p>\n \u56fe<\/strong>5<\/strong> Bi2<\/sub>Mg3<\/sub>\u4e2d\u7684\u91cd\u590d\u62d3\u6251\u548c\u8d85\u62d3\u6251 \u00a9 2022 AAAS<\/p>\n \u4e94\u3001<\/strong> \u6210\u679c\u542f\u793a<\/strong><\/p>\n \u5c06\u9ad8\u901a\u91cf\u8ba1\u7b97\u65b9\u6cd5\u6269\u5c55\u5230\u5305\u62ec\u65e0\u673a\u6676\u4f53\u7ed3\u6784\u6570\u636e\u5e93\u4e2d\u6240\u6709\u53ef\u5904\u7406\u7684\u6761\u76ee\uff0c\u7814\u7a76\u4e86\u6750\u6599\u5728\u8d39\u7c73\u80fd\u91cf\u548c\u8fdc\u79bb\u8d39\u7c73\u80fd\u91cf\u65f6\u7684\u80fd\u5e26\u7ed3\u6784\u3002\u7814\u7a76\u53d1\u73b0\uff0c\u66f4\u591a\u7684\u6750\u6599\u6bd4\u6700\u521d\u8ba4\u4e3a\u7684\u5177\u6709\u62d3\u6251\u6027\uff0c\u51e0\u4e4e88%\u7684\u6750\u6599\u81f3\u5c11\u6709\u4e00\u4e2a\u62d3\u6251\u5e26\u3002\u53e6\u5916\uff0c\u63a2\u8ba8\u4e86\u51e0\u4e2a\u95ee\u9898\u3002\u9996\u5148\uff0c\u5b58\u5728\u65e0\u5fc3\u7a7a\u95f4\u7fa4 TI\u548c TCI\u4e0d\u80fd\u901a\u8fc7SI\u5224\u65ad\uff0cTQC\u548cSIs\u5728\u9ad8\u901a\u91cf\u53d1\u73b0\u975e\u5bf9\u79f0\u62d3\u6251\u6750\u6599\u4ecd\u7136\u5b58\u5728\u7a81\u51fa\u7684\u95ee\u9898\u3002\u4e00\u4e9b\u6709\u524d\u666f\u7684\u7814\u7a76\u91c7\u7528\u8fd9\u79cd\u53ef\u9009\u7684\u3001\u53ef\u6269\u5c55\u7684\u65b9\u6cd5\uff0c\u7528\u4e8e\u9ad8\u901a\u91cf\u62d3\u6251\u6750\u6599\u8bc6\u522b\uff0c\u9884\u793a\u7740\u672a\u6765\u4f1a\u6709\u66f4\u5927\u6bd4\u4f8b\u7684\u81ea\u7136\u754c\u4e2d\u7684\u6750\u6599\u5728\u62d3\u6251\u4e0a\u662f\u975e\u5e73\u5eb8\u7684\u3002\u6700\u540e\uff0c\u5c06TQC\u548cSIs\u7684\u65b9\u6cd5\u6269\u5c55\u5230\u78c1\u6027\u7cfb\u7edf\uff0c\u5728\u8d39\u7c73\u80fd\u7ea7\u9644\u8fd1\u6709\u8d85\u8fc7100\u79cd\u5177\u6709\u975e\u5e73\u51e1\u62d3\u6251\u7684\u78c1\u6027\u6750\u6599\u53ef\u4ee5\u901a\u8fc7\u9ad8\u901a\u91cf\u8bc6\u522b\u3002<\/p>\n \u6587\u732e\u94fe\u63a5\uff1a<\/strong><\/p>\n All topological bands of all nonmagnetic stoichiometric materials\uff0cDOI: 10.1126\/science.abg9094<\/p>\n \u6587\u4e2d\u6240\u8ff0\u5982\u6709\u4e0d\u59a5\u4e4b\u5904\uff0c\u6b22\u8fce\u8bc4\u8bba\u533a\u7559\u8a00~<\/p>\n","protected":false},"excerpt":{"rendered":" \u4e00\u3001\u5bfc\u8bfb \u56fa\u4f53\u7269\u7406\u9886\u57df\u5728\u8fc7\u53bb\u768415\u5e74\u91cc\u53d6\u5f97\u4e86\u5de8\u5927\u7684\u53d1\u5c55\uff0c\u8fd9\u5728\u5f88\u5927\u7a0b\u5ea6\u4e0a\u662f\u7531\u975e\u78c1\u6027\u6676\u4f53\u4e2d\u62d3\u6251\u975e\u5e73\u5eb8\u7535\u5b50\u5e26\u7684\u53d1\u73b0\uff0c\u4f8b\u5982\u62d3\u6251\u7edd\u7f18\u4f53(TI)\uff0c\u62d3\u6251\u6676\u4f53\u7edd\u7f18\u4f53\uff08TCI\uff09\u548c…<\/p>\n","protected":false},"author":35331,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[],"class_list":["post-237744","post","type-post","status-publish","format-standard","hentry","category-keji"],"_links":{"self":[{"href":"\/\/m.iemloyee.com\/index.php?rest_route=\/wp\/v2\/posts\/237744"}],"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\/35331"}],"replies":[{"embeddable":true,"href":"\/\/m.iemloyee.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=237744"}],"version-history":[{"count":2,"href":"\/\/m.iemloyee.com\/index.php?rest_route=\/wp\/v2\/posts\/237744\/revisions"}],"predecessor-version":[{"id":237790,"href":"\/\/m.iemloyee.com\/index.php?rest_route=\/wp\/v2\/posts\/237744\/revisions\/237790"}],"wp:attachment":[{"href":"\/\/m.iemloyee.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=237744"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"\/\/m.iemloyee.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=237744"},{"taxonomy":"post_tag","embeddable":true,"href":"\/\/m.iemloyee.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=237744"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
<\/p>\n
<\/p>\n
<\/p>\n
<\/p>\n
<\/p>\n
<\/p>\n