{"id":143827,"date":"2018-06-28T06:30:13","date_gmt":"2018-06-27T22:30:13","guid":{"rendered":"http:\/\/www.cailiaoniu.com\/?p=143827"},"modified":"2018-06-27T09:00:58","modified_gmt":"2018-06-27T01:00:58","slug":"%e5%8c%97%e5%a4%a7%e4%bf%9e%e5%a4%a7%e9%b9%8f%e5%bb%96%e5%bf%97%e6%95%8fprl-dirac%e5%8d%8a%e9%87%91%e5%b1%9ecd3as2%e7%ba%b3%e7%b1%b3%e7%ba%bf%e7%9a%84%e4%bd%93%e7%9b%b8%e5%92%8c%e8%a1%a8%e9%9d%a2","status":"publish","type":"post","link":"http:\/\/www.cailiaoniu.com\/?p=143827","title":{"rendered":"\u5317\u5927\u4fde\u5927\u9e4f&#038;\u5ed6\u5fd7\u654fPRL: Dirac\u534a\u91d1\u5c5eCd3As2\u7eb3\u7c73\u7ebf\u7684\u4f53\u76f8\u548c\u8868\u9762\u6001\u95f4\u7684Fano\u5e72\u6d89"},"content":{"rendered":"<p><strong>\u3010\u5f15\u8a00\u3011<\/strong><\/p>\n<p><strong>\u00a0<\/strong>\u72c4\u62c9\u514b\u534a\u91d1\u5c5e\u53ef\u4ee5\u901a\u8fc7\u78c1\u573a\u6253\u7834\u65f6\u95f4\u53cd\u6f14\u5bf9\u79f0\u6027\u4ece\u800c\u8f6c\u5316\u4e3a\u5916\u5c14\u534a\u91d1\u5c5e\uff0c\u8fd1\u5e74\u6765\u5f15\u8d77\u4e86\u7814\u7a76\u4eba\u5458\u7684\u5e7f\u6cdb\u5174\u8da3\u3002\u5b83\u4eec\u4e0d\u4ec5\u5728\u4e09\u7ef4\u52a8\u91cf\u7a7a\u95f4\u4e2d\u5177\u6709\u4f53\u6001\u7684\u72c4\u62c9\u514b\u9525\uff0c\u800c\u4e14\u8fd8\u5177\u6709\u62d3\u6251\u8868\u9762\u6001\uff0c\u5373\u8d39\u7c73\u5f27\uff1b\u5e76\u4e14\u5728\u7eb3\u7c73\u7ebf\u4e2d\u7531\u4e8e\u91cf\u5b50\u9650\u5236\u6548\u5e94\uff0c\u5176\u5c06\u6210\u4e3a\u4e00\u7cfb\u5217\u79bb\u6563\u7684\u8868\u9762\u5b50\u80fd\u5e26\u3002<\/p>\n<p><strong>\u3010\u6210\u679c\u7b80\u4ecb\u3011<\/strong><\/p>\n<p><strong>\u00a0<\/strong>\u8fd1\u65e5\uff0c<strong>\u5317\u4eac\u5927\u5b66\u4fde\u5927\u9e4f\u3001\u5ed6\u5fd7\u654f<\/strong>\u7b49\u4eba\u62a5\u9053\u4e86\u4e00\u79cd\u53ef\u8c03\u7684Fano\u6548\u5e94\uff0c\u5176\u662f\u7531Dirac\u534a\u91d1\u5c5eCd<sub>3<\/sub>As<sub>2<\/sub>\u7eb3\u7c73\u7ebf\u7684\u79bb\u6563\u8868\u9762\u6001\u548c\u8fde\u7eed\u4f53\u6001\u4e4b\u95f4\u7684\u5e72\u6d89\u5f15\u8d77\u7684\u3002\u8be5\u7814\u7a76\u8ba4\u4e3a\uff0c\u5f53Fermi\u80fd\u7ea7\u88ab\u8c03\u5236\u5230\u4e00\u4e2a\u8868\u9762\u5b50\u80fd\u5e26\u7684\u5e26\u5e95\u65f6\uff0c\u5fae\u5206\u7535\u5bfc\u8c31dI\/dV\u4f1a\u51fa\u73b0\u96f6\u504f\u538b\u5cf0\u503c\u3002Fano\u5171\u632f\u5bfc\u81f4dI\/dV\u968f\u504f\u7f6e\u7535\u538bV<sub>b<\/sub>\u7684\u4e0d\u5bf9\u79f0\u7ebf\u5f62\u3002\u6b64\u5916\uff0cFano\u5e72\u6d89\u4f1a\u5728Weyl\u8f68\u9053\u4e2d\u5f15\u5165\u4e00\u4e2a\u9644\u52a0\u76f8\u4f4d\uff0c\u5e76\u5bfc\u81f4\u632f\u8361\u9891\u7387\u7684\u6539\u53d8\u3002\u8fd9\u4e9b\u7ed3\u679c\u5bf9\u4e8e\u8fdb\u4e00\u6b65\u4e86\u89e3\u62d3\u6251\u534a\u91d1\u5c5e\u72ec\u7279\u7684\u91cf\u5b50\u8f93\u8fd0\u6027\u8d28\u5f88\u6709\u4ef7\u503c\u3002\u8be5\u7814\u7a76\u53d1\u8868\u4e8e<strong>Physical Review Letters<\/strong>\uff0c\u9898\u4e3a\u201c<strong>Fano Interference between Bulk and Surface States of a Dirac Semimetal Cd<sub>3<\/sub>As<sub>2<\/sub> Nanowire<\/strong><strong>\u201d<\/strong>\uff0c\u5317\u4eac\u5927\u5b66\u738b\u7855\u3001\u6797\u672c\u5ddd\u662f\u672c\u7814\u7a76\u7684\u5171\u540c\u7b2c\u4e00\u4f5c\u8005\u3002<\/p>\n<p><strong>\u00a0<\/strong><strong>\u3010\u56fe\u6587\u5bfc\u8bfb\u3011<\/strong><\/p>\n<p><strong>\u56fe<\/strong><strong>1. SEM<\/strong><strong>\u56fe\u50cf\u4e0e\u8f6c\u79fb\u66f2\u7ebf<\/strong><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-143828\" src=\"http:\/\/www.cailiaoniu.com\/wp-content\/uploads\/2018\/06\/f1-1.png\" alt=\"\" width=\"600\" height=\"193\" srcset=\"http:\/\/www.cailiaoniu.com\/wp-content\/uploads\/2018\/06\/f1-1.png 600w, http:\/\/www.cailiaoniu.com\/wp-content\/uploads\/2018\/06\/f1-1-300x97.png 300w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/p>\n<p>\uff08a\uff09\u5178\u578bCd<sub>3<\/sub>As<sub>2<\/sub>\u7eb3\u7c73\u7ebf\u5668\u4ef6\u7684SEM\u56fe\u50cf\u3002<\/p>\n<p>\uff08b\uff09\u901a\u8fc7\u56db\u7aef\u6784\u578b\u6d4b\u91cf\u7684\u7535\u963b\u4e0eV<sub>g<\/sub>\u7684\u5173\u7cfb\u3002\u63d2\u56fe\u663e\u793a\u51cf\u53bb\u80cc\u666f\u540e\u7684\u7535\u5bfc\u632f\u8361\u3002<\/p>\n<p>\uff08c\uff09\u7531\u4e8e\u7eb3\u7c73\u7ebf\u7684\u91cf\u5b50\u9650\u5236\u6548\u5e94\uff0c\u8868\u9762\u6001\u51fa\u73b0\u4e00\u7cfb\u5217\u5b50\u80fd\u5e26\u3002\u7ea2\u8272\u548c\u84dd\u8272\u7ebf\u5bf9\u5e94\u4e8e\u4e0d\u540c\u7684\u624b\u6027\u3002\u7d2b\u8272\u66f2\u7ebf\u8868\u793aDOS\u5206\u5e03\u3002<\/p>\n<p><strong>\u56fe<\/strong><strong>2. <\/strong><strong>\u4e0d\u540c\u6805\u6781\u7535\u538b\u4e0b\u6d4b\u91cf\u7684<\/strong><strong>dI\/dV<\/strong><strong>\u8c31<\/strong><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-143829\" src=\"http:\/\/www.cailiaoniu.com\/wp-content\/uploads\/2018\/06\/f2-1.png\" alt=\"\" width=\"600\" height=\"211\" srcset=\"http:\/\/www.cailiaoniu.com\/wp-content\/uploads\/2018\/06\/f2-1.png 600w, http:\/\/www.cailiaoniu.com\/wp-content\/uploads\/2018\/06\/f2-1-300x106.png 300w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/p>\n<p>\uff08a\uff09\u57282K\u548c\u4e0d\u540c\u7684\u6805\u6781\u7535\u538b\u4e0b\u6d4b\u91cf\u7684dI\/dV\u968f\u504f\u7f6e\u7535\u538bV<sub>b<\/sub>\u7684\u53d8\u5316\u5173\u7cfb\u3002\u5f53\u8c03\u8282V<sub>g<\/sub>\u4ece-11.5\u5230-18.5V\uff0c\u96f6\u504f\u538b\u7535\u5bfc\u5cf0\u8f6c\u53d8\u4e3a\u96f6\u504f\u538b\u7535\u5bfc\u8c37\u3002<\/p>\n<p>\uff08b\uff09\u5728\u53e6\u4e00\u4e2aV<sub>g<\/sub>\u4e3a14\u523016 V\u533a\u57df\u4e2d\u7684dI\/dV\u8c31\u7684\u7c7b\u4f3c\u53d8\u5316\u3002<\/p>\n<p><strong>\u56fe<\/strong><strong>3.<\/strong> <strong>\u4e0d\u540c\u78c1\u573a\u548c\u6e29\u5ea6\u4e0b\u7684<\/strong><strong>dI\/dV<\/strong><strong>\u8c31<\/strong><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-143830\" src=\"http:\/\/www.cailiaoniu.com\/wp-content\/uploads\/2018\/06\/f3-1.png\" alt=\"\" width=\"600\" height=\"434\" srcset=\"http:\/\/www.cailiaoniu.com\/wp-content\/uploads\/2018\/06\/f3-1.png 600w, http:\/\/www.cailiaoniu.com\/wp-content\/uploads\/2018\/06\/f3-1-300x217.png 300w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/p>\n<p>\uff08a\uff09\u5728T=2K\uff0cV<sub>g<\/sub>=14V\u548c\u4e0d\u540c\u78c1\u573a\u4e0b\u6d4b\u91cf\u7684dI\/dV\u968fV<sub>b<\/sub>\u7684\u53d8\u5316\u5173\u7cfb\u3002<\/p>\n<p>\uff08b\uff09dI\/dV\u4e0e\u504f\u7f6e\u7535\u538b\u548c\u78c1\u573a\u53d8\u5316\u5173\u7cfb\u3002\u7ea2\u8272\u865a\u7ebf\u8868\u793a\u96f6\u504f\u538b\u7535\u5bfc\u5cf0\u968f\u78c1\u573a\u7684\u7ebf\u6027\u5288\u88c2\u3002<\/p>\n<p>\uff08c\uff09\u5728\u4e0d\u540c\u6e29\u5ea6\u4e0b\u6d4b\u91cf\u7684dI\/dV\u8c31\u3002<\/p>\n<p>\uff08d\uff09\u96f6\u504f\u538b\u7535\u5bfc\u5cf0\u5e45\u503c\u4e0e\u6e29\u5ea6\u7684\u5e42\u5f8b\u62df\u5408\u3002\u63d2\u56fe\u663e\u793a\u4e86\u534a\u9ad8\u5cf0\u5bbd\uff08FWHM\uff09\u968f\u6e29\u5ea6\u7684\u51fd\u6570\u3002<\/p>\n<p><strong>\u00a0<\/strong><strong>\u56fe<\/strong><strong>4. <\/strong><strong>\u4e0d\u5bf9\u79f0\u548c\u5bf9\u79f0\u7684<\/strong><strong>dI\/dV<\/strong><strong>\u8c31\u62df\u5408<\/strong><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-143831\" src=\"http:\/\/www.cailiaoniu.com\/wp-content\/uploads\/2018\/06\/f4.png\" alt=\"\" width=\"600\" height=\"428\" srcset=\"http:\/\/www.cailiaoniu.com\/wp-content\/uploads\/2018\/06\/f4.png 600w, http:\/\/www.cailiaoniu.com\/wp-content\/uploads\/2018\/06\/f4-300x214.png 300w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/p>\n<p>\uff08a\uff09-\uff08c\uff09dI\/dV\u8c31\u4e0d\u5bf9\u79f0\u7ebf\u578b\u7684Fano\u62df\u5408\u3002<\/p>\n<p>\uff08d\uff09\u5728\u8f83\u7c97\u7684\u53e6\u4e00\u7eb3\u7c73\u7ebf\u4e2d\uff08\u76f4\u5f84\u4e3a150 nm\uff09\uff0c\u8868\u9762\u6001\u7684\u91cf\u5b50\u9650\u5236\u6548\u5e94\u4e0d\u660e\u663e\uff0cdI\/dV\u968f\u504f\u7f6e\u7535\u538b\u53d8\u5316\u5c55\u73b0\u51fa\u5bf9\u79f0\u7684\u629b\u7269\u7ebf\u578b\u3002<\/p>\n<p><strong>\u00a0<\/strong><strong>\u3010\u5c0f\u7ed3\u3011<\/strong><\/p>\n<p>\u8be5\u9879\u5de5\u4f5c\u89c2\u6d4b\u5230\u72c4\u62c9\u514b\u534a\u91d1\u5c5eCd<sub>3<\/sub>As<sub>2<\/sub>\u7eb3\u7c73\u7ebf\u4e2ddI\/dV\u8c31\u7684\u96f6\u504f\u538b\u7535\u5bfc\u5cf0\uff0c\u5e76\u53d1\u73b0\u5176\u6e90\u4e8e\u91cf\u5b50\u9650\u5236\u6548\u5e94\u5f15\u8d77\u7684\u8868\u9762\u80fd\u5e26\u5288\u88c2\u3002\u5f53\u65bd\u52a0\u78c1\u573a\u65f6\uff0c\u7531\u4e8e\u585e\u66fc\u6548\u5e94\uff0c\u96f6\u504f\u538b\u7535\u5bfc\u5cf0\u88ab\u5206\u88c2\uff0c\u5e76\u4e14\u83b7\u5f97\u8868\u9762\u6001\u7684g\u56e0\u5b50\u8fbe32\u3002\u6b64\u5916\uff0c\u8fde\u7eed\u4f53\u76f8\u4e0e\u79bb\u6563\u8868\u9762\u5b50\u5e26\u4e4b\u95f4\u7684Fano\u5e72\u6d89\u5bfc\u81f4\u96f6\u504f\u538b\u7535\u5bfc\u5cf0\u7684\u4e0d\u5bf9\u79f0\u7ebf\u578b\u3002\u8fdb\u4e00\u6b65\u7684\u5206\u6790\u8868\u660e\uff0c\u8fd9\u79cdFano\u5e72\u6d89\u4f1a\u5728\u72c4\u62c9\u514b\u3001\u5916\u5c14\u534a\u91d1\u5c5e\u8584\u819c\u7684Weyl\u8f68\u9053\u4e2d\u5f15\u5165\u4e00\u4e2a\u989d\u5916\u7684\u76f8\u4f4d\uff0c\u4ece\u800c\u6539\u53d8\u91cf\u5b50\u632f\u8361\u9891\u7387\u3002\u8be5\u53d1\u73b0\u5c06\u6709\u52a9\u4e8e\u66f4\u597d\u5730\u7406\u89e3Dirac\u548cWeyl \u534a\u91d1\u5c5e\u4e2d\u72ec\u7279\u7684\u91cf\u5b50\u8f93\u8fd0\u6027\u8d28\u3002<\/p>\n<p><strong>\u6587\u732e\u94fe\u63a5\uff1a<\/strong><a href=\"https:\/\/journals.aps.org\/prl\/abstract\/10.1103\/PhysRevLett.120.257701\" target=\"_blank\" rel=\"noopener\">Fano Interference between Bulk and Surface States of a Dirac Semimetal Cd<sub>3<\/sub>As<sub>2<\/sub> Nanowire<\/a> (Physical Review Letters 2018, DOI: 10.1103\/PhysRevLett.120.257701)<\/p>\n<p>\u672c\u6587\u7531\u6750\u6599\u4eba\u8ba1\u7b97\u6750\u6599\u7ec4Annay\u4f9b\u7a3f\uff0c\u6750\u6599\u725b\u6574\u7406\u7f16\u8f91\u3002<\/p>\n<p>\u6750\u6599\u725b\u7f51\u4e13\u6ce8\u4e8e\u8ddf\u8e2a\u6750\u6599\u9886\u57df\u79d1\u6280\u53ca\u884c\u4e1a\u8fdb\u5c55\uff0c\u8fd9\u91cc\u6c47\u96c6\u4e86\u5404\u5927\u9ad8\u6821\u7855\u535a\u751f\u3001\u4e00\u7ebf\u79d1\u7814\u4eba\u5458\u4ee5\u53ca\u884c\u4e1a\u4ece\u4e1a\u8005\uff0c\u5982\u679c\u60a8\u5bf9\u4e8e\u8ddf\u8e2a\u6750\u6599\u9886\u57df\u79d1\u6280\u8fdb\u5c55\uff0c\u89e3\u8bfb\u9ad8\u6c34\u5e73\u6587\u7ae0\u6216\u662f\u8bc4\u8ff0\u884c\u4e1a\u6709\u5174\u8da3\uff0c<a href=\"http:\/\/www.cailiaoniu.com\/25127.html\" target=\"_blank\" rel=\"noopener\">\u70b9\u6211\u52a0\u5165\u7f16\u8f91\u90e8\u5927\u5bb6\u5ead<\/a>\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\u7bb1\uff1a<a href=\"mailto:\u6295\u7a3f\u90ae\u7bb1tougao@cailiaoren.com\" target=\"_blank\" rel=\"noopener\">tougao@cailiaoren.com<\/a>\u3002<\/p>\n<p><strong>\u6295\u7a3f\u4ee5\u53ca\u5185\u5bb9\u5408\u4f5c\u53ef\u52a0\u7f16\u8f91\u5fae\u4fe1\uff1a<\/strong><strong>cailiaokefu<\/strong><strong>\uff0c\u6211\u4eec\u4f1a\u9080\u8bf7\u5404\u4f4d\u8001\u5e08\u52a0\u5165\u4e13\u5bb6\u7fa4\u3002<\/strong><\/p>\n<p><strong>\u6750\u6599\u6d4b\u8bd5\u3001\u6570\u636e\u5206\u6790\uff0c\u4e0a<\/strong><a href=\"http:\/\/www.ceshigu.com\/\" target=\"_blank\" rel=\"noopener\"><strong>\u6d4b\u8bd5\u8c37<\/strong><\/a><strong>\uff01<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u3010\u5f15\u8a00\u3011 \u00a0\u72c4\u62c9\u514b\u534a\u91d1\u5c5e\u53ef\u4ee5\u901a\u8fc7\u78c1\u573a\u6253\u7834\u65f6\u95f4\u53cd\u6f14\u5bf9\u79f0\u6027\u4ece\u800c\u8f6c\u5316\u4e3a\u5916\u5c14\u534a\u91d1\u5c5e\uff0c\u8fd1\u5e74\u6765\u5f15\u8d77\u4e86\u7814\u7a76\u4eba\u5458\u7684\u5e7f\u6cdb\u5174\u8da3\u3002\u5b83\u4eec\u4e0d\u4ec5\u5728\u4e09\u7ef4\u52a8\u91cf\u7a7a\u95f4\u4e2d\u5177\u6709\u4f53\u6001\u7684\u72c4\u62c9\u514b\u9525\uff0c\u800c\u4e14\u8fd8\u5177&#8230;<\/p>\n","protected":false},"author":5415,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[215],"tags":[3223,97,33],"class_list":["post-143827","post","type-post","status-publish","format-standard","hentry","category-jiedu","tag-weyl","tag-computation","tag-nano"],"_links":{"self":[{"href":"http:\/\/www.cailiaoniu.com\/index.php?rest_route=\/wp\/v2\/posts\/143827"}],"collection":[{"href":"http:\/\/www.cailiaoniu.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.cailiaoniu.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.cailiaoniu.com\/index.php?rest_route=\/wp\/v2\/users\/5415"}],"replies":[{"embeddable":true,"href":"http:\/\/www.cailiaoniu.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=143827"}],"version-history":[{"count":3,"href":"http:\/\/www.cailiaoniu.com\/index.php?rest_route=\/wp\/v2\/posts\/143827\/revisions"}],"predecessor-version":[{"id":144075,"href":"http:\/\/www.cailiaoniu.com\/index.php?rest_route=\/wp\/v2\/posts\/143827\/revisions\/144075"}],"wp:attachment":[{"href":"http:\/\/www.cailiaoniu.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=143827"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.cailiaoniu.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=143827"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.cailiaoniu.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=143827"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}