{"id":138851,"date":"2018-05-21T06:30:42","date_gmt":"2018-05-20T22:30:42","guid":{"rendered":"http:\/\/www.cailiaoniu.com\/?p=138851"},"modified":"2018-05-20T17:17:51","modified_gmt":"2018-05-20T09:17:51","slug":"prl-%e6%97%a0%e5%8a%a8%e9%87%8f%e6%bf%80%e5%8f%91%e7%9a%84%e6%96%b9%e5%90%91%e5%8a%9b%e5%92%8cpeierls%e6%89%ad%e6%9b%b2%e5%9b%ba%e4%bd%93%e4%b8%ad%e7%9a%84%e6%9c%89%e5%ba%8f%e8%bd%ac%e5%8f%98","status":"publish","type":"post","link":"http:\/\/www.cailiaoniu.com\/?p=138851","title":{"rendered":"PRL: \u65e0\u52a8\u91cf\u6fc0\u53d1\u7684\u65b9\u5411\u529b\u548cPeierls\u626d\u66f2\u56fa\u4f53\u4e2d\u7684\u6709\u5e8f\u8f6c\u53d8\u2014\u2014\u4ee5GeTe\u4e3a\u4f8b"},"content":{"rendered":"

\u3010\u5f15\u8a00\u3011<\/strong><\/p>\n

\u8d85\u5feb\u6fc0\u5149\u8bf1\u5bfc\u76f8\u53d8\u5728\u8bb8\u591a\u5e94\u7528\u4e2d\u8d77\u7740\u91cd\u8981\u4f5c\u7528\uff0c\u5982\u5728\u6750\u6599\u5fae\u7eb3\u52a0\u5de5\uff0c\u5668\u4ef6\u5236\u9020\u548c\u5149\u5b58\u50a8\u5668\u7b49\u3002\u800c\u4e86\u89e3\u63a7\u5236\u76f8\u53d8\u80cc\u540e\u7684\u7269\u7406\u673a\u5236\u662f\u63a7\u5236\u6750\u6599\u7ed3\u6784\u4ee5\u53ca\u4f18\u5316\u5668\u4ef6\u6027\u80fd\u7684\u5173\u952e\u3002<\/p>\n

\u3010\u6210\u679c\u7b80\u4ecb\u3011<\/strong><\/p>\n

\u00a0<\/strong>\u8fd1\u65e5\uff0c\u5409\u6797\u5927\u5b66\u674e\u8d24\u658c\u3001\u5b59\u6d2a\u6ce2\u4e0e\u4f26\u65af\u52d2\u7406\u5de5\u5b66\u9662\u5f20\u7ef3\u767e<\/strong>\u901a\u8fc7TDDFT-MD\u7814\u7a76\u4e86GeTe\u4e2d\u7684\u52a8\u6001\u7535\u5b50-\u6676\u683c\u8026\u5408\uff0c\u63ed\u793a\u4e86\u7535\u5b50\u6fc0\u53d1\u5bf9\u83f1\u5f62-\u7acb\u65b9\uff08r-to-c\uff09\u76f8\u53d8\u7684\u4f5c\u7528\u3002\u6fc0\u53d1\u4f7f\u5f97\u6cbf[001]\u65b9\u5411\u5f15\u5165\u4e86\u76f8\u5e72\u529b\uff0c\u8fd9\u53ef\u80fd\u5f52\u56e0\u4e8ePeierls\u626d\u66f2\u56fa\u4f53\u7684\u7279\u6b8a\u52bf\u80fd\u9762\u3002\u8be5\u4f5c\u7528\u529b\u9a71\u52a8Ge\u548cTe\u539f\u5b50\u4ee5A1g<\/sub>\u5149\u5b66\u58f0\u5b50\u6a21\u5f0f\u8fd0\u52a8\u4e14\u4e24\u8005\u8fd0\u52a8\u76f8\u4f4d\uff08\u65b9\u5411\uff09\u76f8\u53cd\u3002\u968f\u7740\u8fd9\u79cd\u632f\u8361\u6a21\u5f0f\u7684\u8870\u51cf\uff0cGeTe\u53d1\u751f\u4e86\u83f1\u65b9\u5230\u7acb\u65b9\u76f8\u7684\u8f6c\u53d8\uff0c\u8be5\u8fc7\u7a0b\u4e0d\u6d89\u53ca\u539f\u5b50\u6269\u6563\u3001\u7f3a\u9677\u5f62\u6210\u3001\u4ee5\u53ca\u7acb\u65b9\u76f8\u7684\u6210\u6838-\u751f\u957f\uff0c\u56e0\u6b64\u57281\u76ae\u79d2\u5de6\u53f3\u4fbf\u5b9e\u73b0\u76f8\u53d8\u3002\u8be5\u53d1\u73b0\u7684\u5173\u952e\u5728\u4e8e\u6fc0\u53d1\u5f15\u8d77\u7684\u5b9a\u5411\uff08\u6062\u590d\uff09\u529b\uff0c\u5176\u5728[001]\u65b9\u5411\u4e0a\u6fc0\u6d3b\u83f1\u65b9\u76f8A1g<\/sub>\u58f0\u5b50\u6a21\u5f0f\u3002\u8be5\u7814\u7a76\u53d1\u8868\u4e8ePhysical Review Letters<\/strong>\uff0c\u9898\u4e3a\u201cDirectional Forces by Momentumless Excitation and Order-to-Order Transition in Peierls-Distorted Solids: The Case of GeTe<\/strong>\u201d<\/strong>\uff0c\u7b2c\u4e00\u4f5c\u8005\u4e3a\u535a\u58eb\u751f\u9648\u5ff5\u79d1\u3002<\/p>\n

\u00a0<\/strong>\u3010\u56fe\u6587\u5bfc\u8bfb\u3011<\/strong><\/p>\n

\u56fe<\/strong>1. c<\/em>-GeTe<\/strong>\u548c<\/strong>r<\/em><\/strong>-GeTe<\/strong>\u7684\u539f\u5b50\u5316\u56fe\u50cf\u4e0e\u8d85\u80de\u6a21\u62df<\/strong><\/p>\n

\"\"<\/p>\n

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\u56fe<\/strong>2. <\/strong>\u6001\u5bc6\u5ea6\u4e0e\u52bf\u80fd\u9762\u7b49<\/strong><\/p>\n

\"\"<\/p>\n

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\u56fe<\/strong>3.<\/strong> \u5728<\/strong>5<\/strong>\uff05\u6fc0\u53d1\u4e0b<\/strong>GeTe<\/strong>\u7684\u76f8\u5173\u53c2\u6570\u968f\u65f6\u95f4\u7684\u53d8\u5316<\/strong><\/p>\n

\"\"<\/p>\n

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\u56fe<\/strong>4. <\/strong>\u6fc0\u53d1\u540e\u952e\u957f\u6982\u7387\u5bc6\u5ea6\u5206\u5e03\u968f\u65f6\u95f4\u7684\u53d8\u5316<\/strong><\/p>\n

\"\"<\/p>\n

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\u56fe<\/strong>5. <\/strong>\u539f\u5b50\u8fd0\u52a8\u8f68\u8ff9<\/strong><\/p>\n

\"\"<\/p>\n

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\u00a0<\/strong>\u3010\u5c0f\u7ed3\u3011<\/strong><\/p>\n

\u00a0<\/strong>\u8be5\u7814\u7a76\u4ee5TDDFT-MD\u6a21\u62df\u63ed\u793a\u4e86\u5149\u6fc0\u53d1\u4e0b\u6709\u5e8f\u76f8\u53d8\u7684\u663e\u8457\u7269\u7406\u7279\u6027\u3002\u867d\u7136\u5149\u5b50\u662f\u65e0\u52a8\u91cf\u7684\uff0c\u4f46\u901a\u8fc7\u5c06Peierls\u626d\u66f2\u56fa\u4f53\u4ece\u53cc\u91cd\u6700\u5c0f\u503c\u52bf\u80fd\u9762\u6fc0\u53d1\u5230\u5355\u4e00\u6700\u5c0f\u503c\u52bf\u80fd\u9762\uff0c\u539f\u5b50\u7684\u76f8\u5e72\u96c6\u4f53\u8fd0\u52a8\u6210\u4e3a\u53ef\u80fd\uff0c\u8fd9\u4e9b\u539f\u5b50\u4e0e\u83f1\u65b9\u76f8A1g<\/sub>\u5149\u5b66\u58f0\u5b50\u6a21\u5f0f\u5f3a\u70c8\u8026\u5408\u3002\u867d\u7136\u76ee\u524d\u8be5\u7814\u7a76\u4e3b\u8981\u5173\u6ce8GeTe\u7684\u76f8\u53d8\uff0c\u4f46\u5b83\u5e76\u4e0d\u662f\u4e00\u4e2a\u5b64\u7acb\u7684\u6848\u4f8b\u3002\u5176\u5b9eGeTe\u6240\u5c5e\u7684\u94c1\u7535\u56fa\u4f53\uff0c\u6216\u8005\u66f4\u5e7f\u6cdb\u5730\u8bf4\u5177\u6709Peierls\u7578\u53d8\u7684\u56fa\u4f53\u5e94\u8be5\u5177\u6709\u56fe2\uff08b\uff09\u4e2d\u7c7b\u4f3c\u7684\u52bf\u80fd\u9762\u7279\u5f81\u3002\u5728Peierls\u626d\u66f2\u7684Bi\u3001Sb\u3001Te\u548cTi2<\/sub>O3<\/sub>\u4e2d\uff0c\u5df2\u7ecf\u89c2\u5bdf\u5230A1g<\/sub>\u6a21\u5f0f\u7684\u6fc0\u5149\u9009\u62e9\u6027\u6fc0\u53d1\u3002\u56e0\u6b64\u7814\u7a76\u4eba\u5458\u76f8\u4fe1\uff0c\u8be5\u76f8\u53d8\u673a\u5236\u53ef\u80fd\u9002\u7528\u4e8e\u5176\u4e2d\u7684\u8bb8\u591a\u4f53\u7cfb\uff0c\u56e0\u6b64\u8be5\u53d1\u73b0\u4e3a\u5bfb\u627e\u7535\u5b50\u3001\u5149\u7535\u5b50\u548c\u80fd\u6e90\u5e94\u7528\u7684\u8d85\u5feb\u6709\u5e8f\u76f8\u53d8\u6750\u6599\u5f00\u8f9f\u4e86\u65b0\u7684\u65b9\u5411\u3002<\/p>\n

\u6587\u732e\u94fe\u63a5\uff1a<\/strong>Directional Forces by Momentumless Excitation and Order-to-Order Transition in Peierls-Distorted Solids: The Case of GeTe<\/a> (Physical Review Letters 2018, DOI: 10.1103\/PhysRevLett.120.185701)<\/p>\n

\u8be5\u7814\u7a76\u7531\u5409\u6797\u5927\u5b66\u674e\u8d24\u658c\u535a\u58eb\u4e3b\u6301\u3002\u674e\u535a\u58eb\u5e26\u9886\u7684\u5409\u5927\u8ba1\u7b97\u534a\u5bfc\u4f53\u7269\u7406\u5b9e\u9a8c\u5ba4(www.ioe-jlu.cn\/csp<\/u><\/a>) \u91c7\u7528\u7535\u5b50\u7ed3\u6784\u8ba1\u7b97\u65b9\u6cd5\u957f\u671f\u4ece\u4e8b\u4fe1\u606f\u5668\u4ef6\u76f8\u5173\u7684\u534a\u5bfc\u4f53\u7269\u7406\u95ee\u9898\u7814\u7a76\uff0c\u91cd\u70b9\u63a2\u7d22\u534a\u5bfc\u4f53\u8d85\u5feb\u76f8\u53d8\u89c4\u5f8b\u3001\u534a\u5bfc\u4f53\u65e0\u5e8f\u7cfb\u7edf\u7535\u5b50\u89c4\u5f8b\u7b49\u95ee\u9898\u3002\u672c\u7814\u7a76\u7684GeTe\u5c5e\u4e8e\u76f8\u53d8\u4fe1\u606f\u5b58\u50a8\u6750\u6599\uff0c\u7814\u7a76\u7ec4\u5728\u76f8\u53d8\u4fe1\u606f\u5b58\u50a8\u534a\u5bfc\u4f53\u7684\u8c03\u63a7\u4e0e\u8bbe\u8ba1\u4e0a\u53d6\u5f97\u7684\u8fdb\u5c55\u6709\uff1a<\/p>\n

    \n
  1. Directional Forces by Momentumless Excitation and Order-to-Order Transition\u00a0in Peierls-Distorted Solids: The Case of GeTe.\u00a0Phys. Rev. Lett. 120, 185701 (2018).<\/strong><\/li>\n
  2. Strong electron-polarized atom chain in amorphous phase-change\u00a0memory GeSbTe alloy.\u00a0Acta Mater.\u00a0143, 102 (2017).<\/strong><\/li>\n
  3. Element-specific amorphization of vacancy-ordered GeSbTe for ternary-state phase change memory. Acta Mater. 136, 242 (2017).<\/strong><\/li>\n
  4. Origin of high thermal stability of amorphous Ge1<\/sub>Cu2<\/sub>Te3<\/sub> alloy: A significant Cu-bonding reconfiguration modulated by Te lone-pair electrons for crystallization, Acta Mater. 90, 88 (2015).<\/strong><\/li>\n
  5. One order of magnitude faster phase change at reduced power in Ti-Sb-Te, Nature Commun. 5, 4086 (2014).<\/strong><\/li>\n
  6. New structural picture of the Ge2<\/sub>Sb2<\/sub>Te5<\/sub><\/em> phase-change alloy, Phys. Rev. Lett. 106, 025501 (2011).<\/strong><\/li>\n
  7. Role of electronic excitation in the amorphization of Ge-Sb-Te alloys<\/em>, Phys. Rev. Lett. 107, 015501 (2011).<\/strong><\/li>\n<\/ol>\n

    \u672c\u6587\u7531\u6750\u6599\u4eba\u8ba1\u7b97\u6750\u6599\u7ec4Annay\u4f9b\u7a3f\uff0c\u6750\u6599\u725b\u6574\u7406\u7f16\u8f91\u3002<\/p>\n

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    \u6295\u7a3f\u4ee5\u53ca\u5185\u5bb9\u5408\u4f5c\u53ef\u52a0\u7f16\u8f91\u5fae\u4fe1\uff1a<\/strong>cailiaokefu<\/strong>\u3002<\/strong><\/p>\n

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