{"id":115154,"date":"2017-12-08T06:30:40","date_gmt":"2017-12-07T22:30:40","guid":{"rendered":"\/\/m.iemloyee.com\/?p=115154"},"modified":"2017-12-05T21:47:48","modified_gmt":"2017-12-05T13:47:48","slug":"science-advances%ef%bc%9a%e9%87%91%e5%b1%9e%e7%8e%bb%e7%92%83%e4%b8%ad%e6%8e%a7%e5%88%b6johari-goldstein%ce%b2%e5%bc%9b%e8%b1%ab%e7%9a%84%e7%bb%93%e6%9e%84%e9%87%8d%e6%8e%92","status":"publish","type":"post","link":"\/\/m.iemloyee.com\/?p=115154","title":{"rendered":"Science Advances\uff1a\u91d1\u5c5e\u73bb\u7483\u4e2d\u63a7\u5236Johari-Goldstein\u03b2\u5f1b\u8c6b\u7684\u7ed3\u6784\u91cd\u6392"},"content":{"rendered":"

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

\u975e\u6676\u6001\u6750\u6599\u7684\u539f\u5b50\u91cd\u6392\u662f\u5176\u57fa\u672c\u6027\u8d28\u4e4b\u4e00\uff0c\u5bf9\u4e8e\u62b5\u6297\u6d41\u53d8\u548c\u63a7\u5236\u7269\u6027\u6f14\u5316\u81f3\u5173\u91cd\u8981\u3002\u6b64\u5916\uff0c\u7531\u4e8e\u672c\u5f81\u65e0\u5e8f\uff0c\u975e\u6676\u6001\u6750\u6599\u5177\u6709\u591a\u79cd\u5f1b\u8c6b\u52a8\u529b\u5b66\uff0c\u7531\u76ae\u79d2\u5c3a\u5ea6\u7684\u5feb\u5f1b\u8c6b\u8fc7\u7a0b\u5230\u4e0a\u5343\u5e74\u7684\u8001\u5316\u548c\u6d53\u7f29\u3002\u7406\u89e3\u539f\u5b50\u91cd\u6392\u662f\u5982\u4f55\u63a7\u5236\u7740\u5f1b\u8c6b\u8fc7\u7a0b\uff0c\u662f\u975e\u6676\u6001\u7269\u7406\u9886\u57df\u503c\u5f97\u5173\u6ce8\u7684\u95ee\u9898\u3002\u7279\u522b\u503c\u5f97\u6ce8\u610f\u7684\u662f\u88ab\u79f0\u4e3a\u201cJohari-Goldstein\u5f1b\u8c6b\u201d\uff0c\u4e5f\u88ab\u79f0\u4f5c\u6b21\u7ea7\u5f1b\u8c6b\u6216\u03b2\u5f1b\u8c6b\u3002<\/p>\n

Johari\u548cGoldstein\u53d1\u73b0\uff0c\u5728\u4e00\u4e9b\u521a\u6027\u5206\u5b50\u7684\u73bb\u7483\u6001\u7269\u8d28\u4e2d\uff0c\u4e00\u4e9b\u03b2\u5f1b\u8c6b\u5fc5\u987b\u5305\u542b\u6574\u4e2a\u5206\u5b50\u7684\u8fd0\u52a8\uff0c\u800c\u4e0d\u4ec5\u4e0e\u5206\u5b50\u5185\u81ea\u7531\u5ea6\u6709\u5173\u3002\u5b83\u4eec\u5c5e\u4e8e\u548c\u03b1\u5f1b\u8c6b\u6709\u5f3a\u5173\u8054\u7684\u7279\u6b8a\u7684\u5f1b\u8c6b\u7c7b\u578b\u3002\u4e3a\u4e0e\u5176\u4ed6\u8d77\u6e90\u4e8e\u5206\u5b50\u5185\u90e8\u7684\u6b21\u7ea7\u5f1b\u8c6b\u533a\u5206\uff0cNgai\u548cPaluch\u5f15\u5165\u4e86Johari-Golstein\u03b2\u5f1b\u8c6b\u7684\u6982\u5ff5\u3002\u03b2\u5f1b\u8c6b\u5bf9\u4e8e\u7406\u89e3\u975e\u6676\u6001\u7269\u7406\u548c\u6750\u6599\u79d1\u5b66\u4e2d\u8bb8\u591a\u672a\u5f97\u5230\u89e3\u51b3\u7684\u5173\u952e\u95ee\u9898\u6709\u7740\u91cd\u8981\u610f\u4e49\uff0c\u5305\u62ec\u6db2\u4f53\u52a8\u529b\u5b66\u548c\u53cd\u5e38\u73b0\u8c61\u3001\u6269\u6563\u3001\u7269\u7406\u8001\u5316\u3001\u805a\u5408\u7269\u548c\u975e\u6676\u5408\u91d1\u7684\u529b\u5b66\u6027\u80fd\uff0c\u540c\u65f6\uff0c\u548c\u79bb\u5b50\u6db2\u4f53\u7684\u7535\u5bfc\u7387\u4ee5\u53ca\u975e\u6676\u6001\u836f\u7269\u3001\u751f\u7269\u6750\u6599\u7684\u7a33\u5b9a\u6027\u5bc6\u5207\u76f8\u5173\u3002<\/p>\n

\u5c3d\u7ba1\u5176\u610f\u4e49\u91cd\u5927\uff0c\u03b2\u5f1b\u8c6b\u7684\u7ed3\u6784\u8d77\u6e90\u4ecd\u6ca1\u6709\u5f97\u5230\u786e\u5b9a\u3002\u6839\u636e\u5df2\u6709\u7684\u4e00\u4e9b\u5b9e\u9a8c\u548c\u6a21\u62df\u7ed3\u679c\uff0c\u63d0\u51fa\u4e86\u4e00\u79cd\u901a\u8fc7\u539f\u5b50\u534f\u540c\u8fd0\u52a8\u7684\u7406\u8bba\u6a21\u578b\uff0c\u4f46\u8fd8\u672a\u5b8c\u5168\u9610\u660e\u5176\u672c\u8d28\u3002<\/p>\n

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

\u03b2\u5f1b\u8c6b\u662f\u8fc7\u51b7\u6db2\u4f53\u548c\u73bb\u7483\u7684\u672c\u5f81\u7279\u6027\uff0c\u5bf9\u4e8e\u975e\u6676\u6001\u6750\u6599\u7684\u8bb8\u591a\u6027\u8d28\u90fd\u81f3\u5173\u91cd\u8981\uff0c\u4f46\u662f\u5176\u6839\u672c\u5f62\u6210\u673a\u5236\u4ecd\u672a\u5f97\u4ee5\u5efa\u7acb\u3002\u8fd1\u65e5\uff0c\u534e\u4e2d\u79d1\u6280\u5927\u5b66\u4e8e\u6d77\u6ee8\u6559\u6388<\/strong>\u548c\u7f8e\u56fd\u4e9a\u5229\u6851\u90a3\u5dde\u7acb\u5927\u5b66\u7684<\/strong>Ranko Richert<\/strong>\u6559\u6388<\/strong>\u3001\u5fb7\u56fd\u54e5\u5ef7\u6839\u5927\u5b66\u7684<\/strong>Konrad Samwer<\/strong>\u6559\u6388<\/strong>\u5408\u4f5c\u5f00\u5c55\u4e86\u76f8\u5173\u7814\u7a76\u5de5\u4f5c\uff0c\u5176\u7814\u7a76\u6210\u679c\u4ee5\u201cStructural rearrangements governing Johari-Goldstein relaxations in metallic glasses<\/strong>\u201d\u4e3a\u9898\u53d1\u8868\u5728Science Advances<\/strong>\u4e0a\u3002\u672c\u6587\u63d0\u51fa\u5728\u975e\u6676\u6001\u7269\u7406\u4e2d\uff0c\u5b58\u5728\u7740\u53e6\u4e00\u4e2a\u4e0e\u6e29\u5ea6\u5f31\u76f8\u5173\u7684\u3001\u76ae\u79d2\u91cf\u7ea7\u7684\u77ed\u65f6(\u5feb)\u03b2\u5f1b\u8c6b\u3002\u901a\u8fc7\u5fae\u79d2\u65f6\u95f4\u5c3a\u5ea6\u7684\u5206\u5b50\u52a8\u529b\u5b66\u6a21\u62df\u6765\u7814\u7a76\u91d1\u5c5e\u73bb\u7483\u6a21\u578b\u4e2d\u7684\u539f\u5b50\u91cd\u6392\u60c5\u51b5\u3002\u53d1\u73b0\u5355\u4e00\u7c92\u5b50\u4f4d\u79fb\u7684\u5206\u5e03\u663e\u793a\u51fa\u591a\u5cf0\u503c\uff0c\u5176\u4f4d\u7f6e\u4e0e\u5bf9\u5206\u5e03\u51fd\u6570\u6ee1\u8db3\u4e00\u5b9a\u7684\u5b9a\u91cf\u5173\u7cfb\u3002\u8fd9\u4e9b\u88ab\u770b\u6210\u662f\u534f\u540c\u94fe\u72b6\u6fc0\u53d1\u7684\u7ed3\u6784\u7279\u5f81\u3002\u6b64\u5916\uff0c\u94fe\u72b6\u8fd0\u52a8\u7684\u6700\u53ef\u80fd\u65f6\u95f4\u4e0e\u901a\u8fc7\u5728\u5bbd\u6e29\u5ea6\u8303\u56f4\u5185\u52a8\u529b\u5b66\u6a21\u62df\u89c2\u6d4b\u5f97\u5230\u7684\u03b2\u5f1b\u8c6b\u65f6\u95f4\u76f8\u7b26\u5408\uff0c\u4e0e\u7406\u8bba\u6a21\u578b\u4e00\u81f4\u3002\u8be5\u7814\u7a76\u7ed3\u679c\u4e3a\u957f\u4e45\u4ee5\u6765\u7684\u03b2\u5f1b\u8c6b\u7684\u7ed3\u6784\u8d77\u6e90\u96be\u9898\u63d0\u4f9b\u4e86\u6df1\u523b\u89c1\u89e3\u3002<\/p>\n

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

\u56fe1\uff1aNi80P20\u975e\u6676\u5408\u91d1\u7684\u5f1b\u8c6b\u56fe\u3002<\/strong><\/p>\n

\"\"<\/p>\n

\u8be5\u56fe\u663e\u793a\u03b1\u5f1b\u8c6b\u65f6\u95f4\u7531\u4e2d\u95f4\u6563\u5c04\u51fd\u6570\u548c\u52a8\u6001\u529b\u5b66\u8c31\u51b3\u5b9a\uff0c\u03b2\u5f1b\u8c6b\u65f6\u95f4\u94fe\u72b6\u8fd0\u52a8\u7684\u6700\u53ef\u80fd\u5f1b\u8c6b\u65f6\u95f4\u662f\u6e29\u5ea6\u548c\u6e29\u5ea6\u5012\u6570\u7684\u51fd\u6570\u3002<\/p>\n

VFT: Vogel-Fulcher-Tammann\uff1b<\/p>\n

CM\uff1a\u8026\u5408\u6a21\u578b<\/p>\n

\u56fe2\uff1aNi80<\/sub>P20<\/sub>\u975e\u6676\u5408\u91d1\u4e2d\u539f\u5b50\u7684\u94fe\u72b6\u8fd0\u52a8\u3002<\/strong><\/p>\n

\"\"<\/p>\n

(A)\u56fe\u4e3aT=440K\u65f6,\u4e0d\u540c\u65f6\u95f4\u95f4\u9694\u03b4t\u7684\u539f\u5b50\u4f4d\u79fb\u7684\u6982\u7387\u5bc6\u5ea6\u51fd\u6570p(u,\u03b4t)\uff1b(B)T=440K\u65f6\u7684\u5f84\u5411\u5206\u5e03\u51fd\u6570g(r)\uff1b<\/p>\n

(C))T=440K\uff0c\u03b4t=100ns\u65f6\uff0c\u539f\u5b50\u4f4d\u79fb\u7684\u4e8c\u7ef4\u5411\u91cf\u573a\u3002\u7ea2\uff08\u84dd\uff09\u8272\u5411\u91cf\u4e3a\u4f4d\u79fb<\/p>\n

\u91cf\u5927\u4e8e\uff08\u5c0f\u4e8e\uff091.8 \u00c5\u7684\u539f\u5b50\uff1b<\/p>\n

(D)\u6a21\u62df\u5f97\u5230\u7684\u5178\u578b\u7684\u4e09\u7ef4\u7ebf\u72b6\u7ed3\u6784\u3002<\/p>\n

\u56fe3\uff1a\u7ebf\u72b6\u8fd0\u52a8\u7684\u52a8\u529b\u5b66\u6f14\u5316\u3002<\/strong><\/p>\n

\"\"<\/p>\n

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\u56fe4\uff1a\u52a8\u6001\u529b\u5b66\u8c31\u63ed\u793a\u7684\u03b2\u5f1b\u8c6b\u73b0\u8c61\u3002<\/strong><\/p>\n

\"\"<\/p>\n

(A-D)Ni80<\/sub>P20<\/sub>\u975e\u6676\u5408\u91d1\u5728\u6d4b\u8bd5\u5468\u671f\u5206\u522b\u4e3a100ns\uff08A\uff09\uff0c30ns(B),10ns(C),3ns(D)\u65f6\u7684\u635f\u8017\u6a21\u91cfE”\uff1b<\/p>\n

(E)\u57fa\u4e8e\u975e\u6676\u5408\u91d1\u7684\u534f\u540c\u526a\u5207\u6a21\u578b\u7684\u539f\u5b50\u7ed3\u6784\u548c\u91cd\u6392\u7684\u793a\u610f\u56fe\uff1b<\/p>\n

(F)\u968f\u539f\u5b50\u4f4d\u79fb\u53d8\u5316\u7684\u52bf\u51fd\u6570\u60c5\u51b5\u3002<\/p>\n

\u3010\u603b\u7ed3\u3011<\/strong><\/p>\n

\u672c\u5de5\u4f5c\u5b9e\u73b0\u4e86\u5bf9\u975e\u6676\u5408\u91d1\u6a21\u578b\u7684\u5fae\u79d2\u7ea7\u5206\u5b50\u52a8\u529b\u5b66\u6a21\u62df\uff0c\u6bd4\u4f20\u7edf\u7684\u5206\u5b50\u52a8\u529b\u5b66\u6a21\u62df\u65f6\u95f4\u5c3a\u5ea6\u63d0\u9ad8\u4e86102<\/sup>\u5230103<\/sup>\u500d\u3002\u7528\u6a21\u62df\u518d\u73b0\u5b9e\u9a8c\u4e0a\u7684\u52a8\u6001\u529b\u5b66\u8c31\uff0c\u4ece\u800c\u83b7\u53d6\u975e\u6676\u5408\u91d1\u7684\u03b2\u5f1b\u8c6b\u7684\u6700\u91cd\u8981\u7279\u5f81\uff0c\u8bf4\u660e\u975e\u6676\u5408\u91d1\u662f\u4ee5\u94fe\u72b6(string-like)\u5f62\u5f0f\u5b9e\u73b0\u7684\u7ed3\u6784\u6fc0\u6d3b\uff0c\u94fe\u72b6\u8fd0\u52a8\u7684\u6700\u53ef\u80fd\u65f6\u95f4\u4e0e\u03b2\u5f1b\u8c6b\u65f6\u95f4\u5728\u8f83\u5bbd\u6e29\u5ea6\u8303\u56f4\u5185\u53ef\u4ee5\u5f88\u597d\u5730\u7b26\u5408\u3002\u7efc\u4e0a\u7ed3\u679c\u663e\u793a\uff0c\u975e\u91d1\u5408\u91d1\u4e2d\u94fe\u72b6\u7684\u539f\u5b50\u91cd\u6392\u53ef\u80fd\u662f\u03b2\u5f1b\u8c6b\u7684\u7ed3\u6784\u8d77\u6e90\uff0c\u8fd9\u662f\u81f3\u4eca\u5f97\u5230\u7684\u6700\u53ef\u4fe1\u7684\u8bc1\u660e\u3002<\/p>\n

\u6587\u732e\u94fe\u63a5\uff1aStructural rearrangements governing Johari-Goldstein\u00a0<\/a><\/strong>relaxations in metallic glasses<\/a>\u00a0<\/strong>(Sci. Adv., 2017, DOI: 10.1126\/sciadv.1701577)<\/p>\n

\u672c\u6587\u7531\u6750\u6599\u4eba\u8ba1\u7b97\u6750\u6599\u7ec4Isobel\u4f9b\u7a3f\uff0c\u6750\u6599\u725b\u6574\u7406\u7f16\u8f91\u3002<\/p>\n

\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\u70b9\u6211\u52a0\u5165\u7f16\u8f91\u90e8\u5927\u5bb6\u5ead<\/a>\u3002<\/p>\n

\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

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