{"id":196505,"date":"2020-02-21T08:16:18","date_gmt":"2020-02-21T00:16:18","guid":{"rendered":"\/\/m.iemloyee.com\/?p=196505"},"modified":"2020-02-21T08:16:18","modified_gmt":"2020-02-21T00:16:18","slug":"%e5%a4%8d%e6%97%a6%e4%b8%ad%e7%a7%91%e5%a4%a7%e4%bb%8a%e6%97%a5science%ef%bc%9a%e6%9c%ac%e5%be%81%e7%a3%81%e6%80%a7%e6%8b%93%e6%89%91%e7%bb%9d%e7%bc%98%e4%bd%93mnbi2te4%e4%b8%ad%e7%9a%84%e9%87%8f","status":"publish","type":"post","link":"\/\/m.iemloyee.com\/?p=196505","title":{"rendered":"\u590d\u65e6&#038;\u4e2d\u79d1\u5927\u4eca\u65e5Science\uff1a\u672c\u5f81\u78c1\u6027\u62d3\u6251\u7edd\u7f18\u4f53MnBi2Te4\u4e2d\u7684\u91cf\u5b50\u5f02\u5e38\u970d\u5c14\u6548\u5e94"},"content":{"rendered":"<p><strong><b>\u3010\u5f15\u8a00\u3011<\/b><\/strong><\/p>\n<p>\u6240\u6709\u62d3\u6251\u6750\u6599\u5171\u6709\u7684\u4e00\u4e2a\u663e\u8457\u7279\u5f81\u662f\u62d3\u6251\u4fdd\u62a4\u91cf\u5b50\u6001\u7684\u5b58\u5728\uff0c\u8fd9\u4e9b\u91cf\u5b50\u6001\u5bf9\u5c40\u90e8\u6270\u52a8\u5177\u6709\u5f88\u5f3a\u7684\u62b5\u6297\u80fd\u529b\u3002\u4f8b\u5982\uff0c\u5728\u62d3\u6251\u7edd\u7f18\u4f53\uff08TI\uff09\u4e2d\uff0c\u5982Bi<sub>2<\/sub>Te<sub>3<\/sub>\uff0c\u4f53\u5e26\u62d3\u6251\u7ed3\u6784\u4fdd\u8bc1\u4e862D\u8868\u9762\u6001\u7684\u5b58\u5728\uff0c\u4e14\u5177\u6709\u65e0\u95f4\u9699\u72c4\u62c9\u514b\u8272\u6563\u3002\u5728\u6700\u521d\u7684\u65f6\u53cd\u4e0d\u53d8\u91cf\u4e2d\u5f15\u5165\u78c1\u6027\uff0c\u4f1a\u5bfc\u81f4\u5b83\u4eec\u7684\u7535\u5b50\u7ed3\u6784\u53d1\u751f\u6df1\u523b\u7684\u53d8\u5316\u3002\u5177\u4f53\u5730\u8bf4\uff0c\u957f\u7a0b\u78c1\u5e8f\u6253\u7834\u4e86\u65f6\u95f4\u53cd\u8f6c\u5bf9\u79f0\u6027\uff0c\u5e76\u5728\u8868\u9762\u6001\u7684\u65e0\u9ad8\u65af\u72c4\u62c9\u514b\u8272\u6563\u4e2d\u9020\u6210\u4e86\u4ea4\u6362\u95f4\u9699\u3002\u5f53\u8d39\u7c73\u80fd\u7ea7\u4f4d\u4e8e\u4ea4\u6362\u9699\u5185\u65f6\uff0c\u624b\u6027\u8fb9\u7f18\u6a21\u5f0f\u7684\u51fa\u73b0\u5c06\u5bfc\u81f4\u91cf\u5b50\u53cd\u5e38\u970d\u5c14\uff08QAH\uff09\u6548\u5e94\u3002\u65e0\u635f\u8017\u7684QAH\u8fb9\u7f18\u901a\u9053\u4e0e\u62d3\u6251\u6750\u6599\u56fa\u6709\u7684\u81ea\u65cb\u52a8\u91cf\u9501\u5b9a\u76f8\u7ed3\u5408\uff0c\u53ef\u80fd\u4f1a\u5bfc\u81f4\u62d3\u6251\u7535\u5b50\u5e94\u7528\u7684\u5668\u4ef6\u6982\u5ff5\u53d6\u5f97\u8fdb\u6b65\u3002\u5bf9\u63ba\u94ec(Bi,Sb)<sub>2<\/sub>Te<sub>3<\/sub>\u4e2dQAH\u6548\u5e94\u7684\u5b9e\u9a8c\u89c2\u5bdf\u9700\u8981\u7cbe\u786e\u63a7\u5236\u8fd9\u79cd\u975e\u5316\u5b66\u8ba1\u91cf\u6750\u6599\u4e2d\u591a\u79cd\u5143\u7d20\u7684\u6bd4\u4f8b\u3002\u7136\u800c\uff0c\u5927\u7684\u78c1\u5316\u5f3a\u5ea6\u548c\u4f4e\u7684\u521d\u59cb\u8f7d\u6d41\u5b50\u63ba\u6742\u5bf9\u6750\u6599\u7684\u751f\u957f\u63d0\u51fa\u4e86\u6311\u6218\uff0c\u800c\u968f\u673a\u5206\u5e03\u7684\u78c1\u6027\u63ba\u6742\u7269\u4f5c\u4e3a\u6742\u8d28\u9650\u5236\u4e86\u78c1\u6027\u7684\u8d28\u91cf\u3002\u7ed3\u679c\uff0c\u7cbe\u786e\u91cf\u5316\u7684\u53cd\u5e38\u970d\u5c14\u6548\u5e94\u53ea\u51fa\u73b0\u5728T = 2 K\u7684\u4f4e\u6e29\u4e0b\uff0c\u8fd9\u8fdc\u4f4e\u4e8e\u5c45\u91cc\u6e29\u5ea6\uff08\u51e0\u5341\u5f00\u5c14\u6587\uff09\u548c\u6750\u6599\u4e2d\u7684\u4ea4\u6362\u95f4\u9699\uff08\u6570\u767e\u5f00\u5c14\u6587\uff09\u3002\u4e3a\u4e86\u8fdb\u4e00\u6b65\u63a2\u7d22\u4e30\u5bcc\u7684\u62d3\u6251\u73b0\u8c61\u53ca\u5176\u6f5c\u5728\u5e94\u7528\uff0c\u9700\u8981\u56fa\u6709\u7684\u78c1\u6027TI\uff08\u5177\u6709\u56fa\u6709\u78c1\u6027\u987a\u5e8f\u7684\u5316\u5b66\u8ba1\u91cfTI\uff09\uff0c\u4ee5\u4fbf\u53ef\u4ee5\u5728\u539f\u59cb\u6676\u4f53\u4e2d\u7814\u7a76\u62d3\u6251\u6548\u5e94\u3002<\/p>\n<p><strong><b>\u3010\u6210\u679c\u7b80\u4ecb\u3011<\/b><\/strong><\/p>\n<p>\u4eca\u65e5\uff0c\u5728<strong><b>\u590d\u65e6\u5927\u5b66\u5f20\u8fdc\u6ce2\u6559\u6388<\/b><\/strong>\u3001<strong><b>\u738b\u9756\u6559\u6388<\/b><\/strong>\u548c<strong><b>\u4e2d\u56fd\u79d1\u5b66\u6280\u672f\u5927\u5b66\u9648\u4ed9\u8f89\u9662\u58eb<\/b><\/strong><strong><b>\u56e2\u961f\uff08<\/b><\/strong><strong><b>\u5171\u540c<\/b><\/strong><strong><b>\u901a\u8baf\u4f5c\u8005\uff09<\/b><\/strong>\u5e26\u9886\u4e0b\uff0c\u4e0e<strong><b>\u6df1\u5733\u516d\u78b3\u79d1\u6280\u6709\u9650\u516c\u53f8<\/b><\/strong>\u5408\u4f5c\uff0c\u63a2\u7a76\u4e86\u5177\u6709\u672c\u5f81\u78c1\u5e8f\u7684\u62d3\u6251\u7edd\u7f18\u4f53MnBi<sub>2<\/sub>Te<sub>4<\/sub>\u8584\u7247\u4e2d\u7684\u91cf\u5b50\u4f20\u8f93\u3002\u5728\u8be5\u5c42\u72b6\u8303\u5fb7\u534e\u6676\u4f53\u4e2d\uff0c\u94c1\u78c1\u5c42\u5f7c\u6b64\u53cd\u5e73\u884c\u8026\u5408\uff1b\u4f46\u662f\uff0c\u5f53\u6837\u54c1\u5177\u6709\u5947\u6570\u4e2a\u4e03\u5c42\u6837\u54c1\u65f6\uff0c\u539f\u5b50\u4e0a\u8584\u7684MnBi<sub>2<\/sub>Te<sub>4<\/sub>\u4f1a\u53d8\u6210\u94c1\u78c1\u6027\u3002\u57281.4\u5f00\u5c14\u6587\u7684\u4e94\u5c42\u6837\u54c1\u4e2d\uff0c\u89c2\u5bdf\u5230\u96f6\u573aQAH\u6548\u5e94\uff0c\u5e76\u4e14\u5916\u90e8\u78c1\u573a\u901a\u8fc7\u94c1\u78c1\u6027\u5bf9\u9f50\u6240\u6709\u5c42\uff0c\u8fdb\u4e00\u6b65\u5c06\u91cf\u5b50\u6e29\u5ea6\u63d0\u9ad8\u52306.5\u5f00\u5c14\u6587\u3002\u7ed3\u679c\u8868\u660eMnBi<sub>2<\/sub>Te<sub>4<\/sub>\u662f\u8fdb\u4e00\u6b65\u63a2\u7d22\u5177\u6709\u81ea\u53d1\u6253\u7834\u65f6\u95f4\u53cd\u8f6c\u5bf9\u79f0\u6027\u7684\u5404\u79cd\u62d3\u6251\u73b0\u8c61\u7684\u7406\u60f3\u573a\u6240\u3002\u76f8\u5173\u6210\u679c\u4ee5\u9898\u4e3a<strong><b>\u201c<\/b><\/strong><strong><b>Quantum anomalous Hall effect in intrinsic magnetic topological insulator MnBi<\/b><\/strong><strong><sub><b>2<\/b><\/sub><\/strong><strong><b>Te<\/b><\/strong><strong><sub><b>4<\/b><\/sub><\/strong><strong><b>\u201d<\/b><\/strong>\u53d1\u8868\u5728\u4e86<strong><b>Science<\/b><\/strong>\u3002<\/p>\n<p><strong><b>\u3010\u56fe\u6587\u5bfc\u8bfb\u3011<\/b><\/strong><\/p>\n<p><strong><b>\u56fe1<\/b><\/strong><strong><b>\u00a0<\/b><\/strong><strong><b>\u591a\u5c42MnBi<\/b><\/strong><strong><sub><b>2<\/b><\/sub><\/strong><strong><b>Te<\/b><\/strong><strong><sub><b>4<\/b><\/sub><\/strong><strong><b>\u5668\u4ef6\u7684\u5236\u5907\u548c\u8868\u5f81<\/b><\/strong><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-196506\" src=\"\/\/m.iemloyee.com\/wp-content\/uploads\/2020\/02\/F1.large_-2.jpg\" alt=\"\" width=\"600\" height=\"739\" srcset=\"\/\/m.iemloyee.com\/wp-content\/uploads\/2020\/02\/F1.large_-2.jpg 600w, \/\/m.iemloyee.com\/wp-content\/uploads\/2020\/02\/F1.large_-2-244x300.jpg 244w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/p>\n<p><strong><b>\u56fe<\/b><\/strong><strong><b>2 \u5728\u4e94\u5c42<\/b><\/strong><strong><b>MnBi<\/b><\/strong><strong><sub><b>2<\/b><\/sub><\/strong><strong><b>Te<\/b><\/strong><strong><sub><b>4<\/b><\/sub><\/strong><strong><b>\u8584\u7247\u4e2d\u7684QAH\u6548\u5e94<\/b><\/strong><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-196507\" src=\"\/\/m.iemloyee.com\/wp-content\/uploads\/2020\/02\/F2.large_-2.jpg\" alt=\"\" width=\"600\" height=\"692\" srcset=\"\/\/m.iemloyee.com\/wp-content\/uploads\/2020\/02\/F2.large_-2.jpg 600w, \/\/m.iemloyee.com\/wp-content\/uploads\/2020\/02\/F2.large_-2-260x300.jpg 260w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/p>\n<p><strong><b>\u56fe<\/b><\/strong><strong><b>3 <\/b><\/strong><strong><b>\u4e94\u5c42MnBi<\/b><\/strong><strong><sub><b>2<\/b><\/sub><\/strong><strong><b>Te<\/b><\/strong><strong><sub><b>4<\/b><\/sub><\/strong><strong><b>\u8584\u7247\u4e2d\u7684\u95e8\u53ef\u8c03\u8c10QAH\u6548\u5e94<\/b><\/strong><strong><b><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-196508\" src=\"\/\/m.iemloyee.com\/wp-content\/uploads\/2020\/02\/F3.large_-2.jpg\" alt=\"\" width=\"600\" height=\"497\" srcset=\"\/\/m.iemloyee.com\/wp-content\/uploads\/2020\/02\/F3.large_-2.jpg 600w, \/\/m.iemloyee.com\/wp-content\/uploads\/2020\/02\/F3.large_-2-300x249.jpg 300w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/b><\/strong><\/p>\n<p><strong><b>\u56fe<\/b><\/strong><strong><b>4 <\/b><\/strong><strong><b>\u4e94\u5c42\u95e8\u63a7MnBi<\/b><\/strong><strong><sub><b>2<\/b><\/sub><\/strong><strong><b>Te<\/b><\/strong><strong><sub><b>4<\/b><\/sub><\/strong><strong><b>\u8584\u7247\u4e2d\u7684LLs<\/b><\/strong><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-196509\" src=\"\/\/m.iemloyee.com\/wp-content\/uploads\/2020\/02\/F4.large_-2.jpg\" alt=\"\" width=\"600\" height=\"383\" srcset=\"\/\/m.iemloyee.com\/wp-content\/uploads\/2020\/02\/F4.large_-2.jpg 600w, \/\/m.iemloyee.com\/wp-content\/uploads\/2020\/02\/F4.large_-2-300x192.jpg 300w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/p>\n<p><strong><b>\u6587\u732e\u94fe\u63a5\uff1a<\/b><\/strong><a href=\"https:\/\/science.sciencemag.org\/content\/367\/6480\/895\" target=\"_blank\" rel=\"noopener\"><u>Quantum anomalous Hall effect in intrinsic magnetic topological insulator MnBi<\/u><u><sub>2<\/sub><\/u><u>Te<\/u><u><sub>4<\/sub><\/u><\/a>\uff08Science\uff0c2020\uff0cDOI:10.1126\/science.aax8156\uff09<\/p>\n<p>\u672c\u6587\u7531<strong><b>\u6728\u6587\u97ec<\/b><\/strong>\u7ffb\u8bd1\uff0c\u6750\u6599\u725b\u6574\u7406\u7f16\u8f91\u3002<\/p>\n<p>\u6b22\u8fce\u5927\u5bb6\u5230\u6750\u6599\u4eba\u5ba3\u4f20\u79d1\u6280\u6210\u679c\u5e76\u5bf9\u6587\u732e\u8fdb\u884c\u6df1\u5165\u89e3\u8bfb\uff0c\u6295\u7a3f\u90ae\u7bb1tougao@cailiaoren.com\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u3010\u5f15\u8a00\u3011 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