{"id":233784,"date":"2022-03-04T06:15:47","date_gmt":"2022-03-03T22:15:47","guid":{"rendered":"\/\/m.iemloyee.com\/?p=233784"},"modified":"2022-03-03T21:05:32","modified_gmt":"2022-03-03T13:05:32","slug":"graphene%e4%b8%ad%e7%9a%84%e6%96%b0%e5%9e%8b%e5%8d%8a%e8%b4%9f%e6%b3%8a%e6%9d%be%e6%af%94%e6%95%88%e5%ba%94","status":"publish","type":"post","link":"\/\/m.iemloyee.com\/?p=233784","title":{"rendered":"Graphene+\u4e2d\u7684\u65b0\u578b\u534a\u8d1f\u6cca\u677e\u6bd4\u6548\u5e94"},"content":{"rendered":"

\u4e2d\u56fd\u5386\u53f2\u4e0a\u56db\u5927\u4e66\u9662\u4e4b\u5cb3\u9e93\u4e66\u9662\uff08<\/strong>@<\/strong>\u6e56\u5357\u5927\u5b66\uff09<\/strong>\u8d77\u59cb\u81f3\u516c\u5143976\u5e74\uff0c\u5728graphene+\u7684\u5b88\u62a4\u4e0b\uff0c\u5e94\u7528\u8d1f\u6cca\u677e\u6bd4\u6548\u5e94\u5e26\u6765\u7684\u5148\u8fdb\u51cf\u9707\u9632\u62a4\u6280\u672f\uff0c\u62b5\u6321\u5929\u5916\u88ad\u51fb\u5e76\u4fdd\u62a4\u53e4\u5efa\u7b51\uff0c\u6210\u4e3a\u4e2d\u539f\u5927\u5730\u4e0a\u4f20\u627f\u5343\u5e74\u7684\u95e8\u6d3e\u3002\uff08\u611f\u8c22\u6e56\u5357\u5927\u5b66\u9648\u827e\u4f36\u4e0e\u8a79\u96e8\u9f50\u540c\u5b66\u5bf9\u5ba3\u4f20\u56fe\u50cf\u5236\u4f5c\u63d0\u4f9b\u7684\u5e2e\u52a9\uff09<\/p>\n

\"\"<\/p>\n

\u3010\u6458\u8981\u3011<\/b><\/strong><\/p>\n

\u672c\u5f81\u8d1f\u6cca\u677e\u6bd4\u4f20\u7edf\u4e0a\u88ab\u5206\u4e3a\u56db\u7c7b\uff0c\u8be5\u5de5\u4f5c\u62a5\u9053\u4e86\u7b2c\u4e94\u7c7b\u8d1f\u6cca\u677e\u6bd4\u884c\u4e3a\uff0c\u5373\u9762\u5916\u534a\u8d1f\u6cca\u677e\u6bd4(out-of-plane NPR)\u3002\u8fd9\u79cd\u8d1f\u6cca\u677e\u6bd4\u80fd\u591f\u6620\u5c04\u5230\u5177\u6709sp<\/em>2<\/sup>–s<\/em>p<\/em>3<\/sup>\u6742\u5316\u7684\u65b0\u578b\u4e8c\u7ef4\u78b3\u7f51\u7edc\uff0cgrapheneplus\u00a0(graphene+)\u3002\u6b64\u5916\uff0cgraphene+\u8fd8\u5177\u6709\u7a33\u5065\u7684\u72c4\u62c9\u514b\u6027\u8d28\u3002\u51ed\u501f\u51fa\u8272\u7684\u7535\u5b50\u548c\u673a\u68b0\u6027\u80fd\uff0cgraphene+\u53ef\u7528\u4f5c\u8bbe\u8ba1\u548c\u5236\u9020\u5177\u6709\u8d1f\u6cca\u677e\u6bd4\u6548\u5e94\u548c\u72c4\u62c9\u514b\u7279\u6027\u7684\u5148\u8fdb\u591a\u529f\u80fd\u5e73\u53f0\uff0c\u4fc3\u8fdb\u62c9\u80c0\u6750\u6599\u5bb6\u65cf\u7684\u8fdb\u4e00\u6b65\u84ec\u52c3\u53d1\u5c55\uff0c\u548c\u7535\u5b50\u5668\u4ef6\u7684\u65b0\u5e94\u7528\u3002<\/p>\n

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

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\u4e8c\u7ef4\u6750\u6599\u7684\u7a33\u5b9a\u6027\u4e00\u76f4\u5b58\u5728\u4e89\u8bae\uff0c\u76f4\u5230 2004\u5e74\u6210\u529f\u5236\u5907\u77f3\u58a8\u70ef\u3002\u77f3\u58a8\u70ef\u5177\u6709\u8bb8\u591a\u975e\u51e1\u6027\u80fd\u548c\u65b0\u5947\u73b0\u8c61\uff0c\u5982\u8d85\u9ad8\u8f7d\u6d41\u5b50\u6d53\u5ea6\u548c\u91cf\u5b50\u970d\u5c14\u6548\u5e94\uff0c\u8fd9\u4e9b\u975e\u51e1\u7684\u7279\u6027\u4e3b\u8981\u8d77\u6e90\u4e8e\u5176\u7279\u6b8a\u7684\u7535\u5b50\u80fd\u5e26\u7ed3\u6784\u3002\u77f3\u58a8\u70ef\u4e2d\u5bfc\u5e26\u548c\u4ef7\u5e26\u4e4b\u95f4\u7ebf\u6027\u63a5\u89e6\uff0c\u5f62\u6210\u72c4\u62c9\u514b\u9525\u3002\u56e0\u6b64\uff0c\u5bfb\u627e\u5177\u6709\u72c4\u62c9\u514b\u7279\u6027\u7684\u65b0\u578b\u4e8c\u7ef4\u6750\u6599\u5f15\u8d77\u4e86\u5e7f\u6cdb\u7684\u7814\u7a76\u5174\u8da3\uff0c\u6709\u671b\u5177\u6709\u51fa\u8272\u7684\u7269\u7406\u7279\u6027\u3002<\/p>\n

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\uff081\uff09\u5e73\u9762\u5185\u8d1f\u6cca\u677e\u6bd4\uff0c\u53ea\u5b58\u5728\u4e8ex<\/em>–y<\/em>\u5e73\u9762\uff1b<\/p>\n

\uff082\uff09\u5e73\u9762\u5916\u8d1f\u6cca\u677e\u6bd4\uff0c\u4ec5\u5b58\u5728\u4e8e\u00b1z\u65b9\u5411\uff1b<\/p>\n

\uff083\uff09\u53cc\u5411\u8d1f\u6cca\u677e\u6bd4\uff0c\u5728 x-y \u5e73\u9762\u548c \u00b1z \u65b9\u5411\u4e0a\u90fd\u5b58\u5728;<\/p>\n

\uff084\uff09\u5e73\u9762\u5185\u534a\u8d1f\u6cca\u677e\u6bd4\uff0c\u65e0\u8bba\u662f\u62c9\u4f38\u8fd8\u662f\u538b\u7f29\uff0c\u6750\u6599\u90fd\u4f1a\u6a2a\u5411\u81a8\u80c0\uff0c\u5373\u53ea\u6709\u62c9\u4f38\u7684\u65f6\u5019\u8868\u73b0\u51fa\u8d1f\u6cca\u677e\u6bd4\u6548\u5e94\u3002<\/p>\n

\u5728\u6b64\u57fa\u7840\u4e0a\uff0c\u662f\u5426\u5b58\u5728\u7b2c\u4e94\u7c7b\u8d1f\u6cca\u677e\u6bd4\u6548\u5e94\uff1f\u00a0<\/b><\/strong><\/p>\n

\"\"<\/p>\n

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

\u8fd1\u65e5\uff0c\u6e56\u5357\u5927\u5b66\u7684\u4f59\u6797\u51e4<\/b><\/strong>\uff08\u7b2c\u4e00\u4f5c\u8005\uff09\u3001\u90d1\u96c4<\/strong>\uff08\u7b2c\u56db\u4f5c\u8005\uff09\u3001\u79e6\u5149\u7167<\/strong>\uff08\u901a\u8baf\u4f5c\u8005\uff09\u548c\u90d1\u5dde\u5927\u5b66\u7684\u79e6\u771f\u771f<\/b><\/strong>\uff08\u7b2c\u4e8c\u4f5c\u8005\uff09\u3001\u6e58\u6f6d\u5927\u5b66\u7684\u738b\u6167\u654f<\/b><\/strong>\uff08\u7b2c\u4e09\u4f5c\u8005\uff09\u5408\u4f5c\u5f00\u5c55\u7814\u7a76\uff0c\u57fa\u4e8e\u7b2c\u4e00\u6027\u539f\u7406\u8ba1\u7b97\uff0c\u8bbe\u8ba1\u4e86<\/strong>\u4e00\u79cd\u65b0\u578b\u4e8c\u7ef4<\/b><\/strong>sp<\/b><\/em><\/strong>2<\/b><\/sup><\/strong>–<\/b><\/strong>sp<\/b><\/em><\/strong>3<\/b><\/sup><\/strong>\u78b3\u540c\u7d20\u5f02\u5f62\u4f53\uff0c\u5373grapheneplus\uff08graphene+\uff09<\/b><\/strong>\u3002\u7814\u7a76\u8868\u660e\uff0cgraphene+\u6bd4\u4e94\u89d2\u77f3\u58a8\u70ef\uff08penta-graphene\uff09\u5728\u80fd\u91cf\u4e0a\u66f4\u7a33\u5b9a\uff0c\u8868\u660e\u5b83\u5728\u5b9e\u9a8c\u4e2d\u66f4\u5bb9\u6613\u5408\u6210\u3002 \u5728\u7269\u7406\u6027\u8d28\u4e0a\uff0cgraphene+\u4e0d\u4ec5\u7ee7\u627f\u4e86\u77f3\u58a8\u70ef\u7684\u72c4\u62c9\u514b\u7279\u6027<\/b><\/strong>\uff0c\u540c\u65f6\u4e5f\u7ee7\u627f\u4e86\u4e94\u89d2\u77f3\u58a8\u70ef\u7684\u8d1f\u6cca\u677e\u6bd4\uff08NPR\uff09\u7279\u6027<\/b><\/strong>\u3002\u6b64\u5916\uff0c\u65e0\u8bba\u65bd\u52a0\u5355\u8f74\/\u53cc\u8f74\u5e94\u53d8\u548c\u7535\u573a\uff0c\u5f62\u6210\u8282\u70b9\u73af\u7684\u72c4\u62c9\u514b\u8282\u70b9\u90fd\u53ef\u4ee5\u4fdd\u6301\u7a33\u5b9a\u7684\u8868\u73b0\u3002\u5bf9\u4e8e\u5176\u8d1f\u6cca\u677e\u6548\u5e94\uff0c\u7814\u7a76\u53d1\u73b0graphene+<\/strong>\u4e2d\u7684NPR<\/strong>\u53ea\u6709\u5728\u62c9\u4f38\u65f6\u624d\u4f1a\u6cbf\u9762\u5916\u65b9\u5411\u8868\u73b0\u51fa\u6765\uff0c\u5373\u9762\u5916\u7684\u534a\u6cca\u677e\u6bd4\uff08out-of-plane<\/b><\/strong>\u00a0NPR<\/b><\/strong>\uff09<\/b><\/strong>\u3002\u672c\u5f81\u8d1f\u6cca\u677e\u6bd4\u4f20\u7edf\u4e0a\u88ab\u5206\u4e3a\u56db\u7c7b\uff0c\u8be5\u5de5\u4f5c\u62a5\u9053\u7684\u9762\u5916\u534a\u8d1f\u6cca\u677e\u6bd4(out-of-plane NPR)\u4e3a\u7b2c\u4e94\u7c7b\u3002<\/strong>\u8be5\u5de5\u4f5c\u901a\u8fc7\u7ed3\u6784\u548c\u7535\u5b50\u7ed3\u6784\u7684\u8026\u5408\u8bbe\u8ba1\uff0c\u5b9e\u73b0\u4e86\u4e00\u79cd\u65b0\u578b\u4e8c\u7ef4\u78b3\u540c\u7d20\u5f02\u5f62\u4f53\uff0c\u5e76\u5728\u5176\u4e2d\u53d1\u73b0\u4e86\u4e00\u79cd\u5168\u65b0\u7684\u8d1f\u6cca\u677e\u6bd4\u6548\u5e94(out-of-plane NPR)\uff0c\u62d3\u5c55\u4e86\u4eba\u4eec\u5bf9\u8d1f\u6cca\u677e\u6bd4\u884c\u4e3a\u7684\u4e86\u89e3\u3002<\/p>\n

\u8be5\u5de5\u4f5c\u4e8e\u8fd1\u65e5\u5728\u7ebf\u53d1\u8868\u4e8e\u5168\u7403\u8457\u540dCell\u51fa\u7248\u793e\u65d7\u4e0b\u65b0\u664b\u9ad8\u6c34\u5e73\u671f\u520a\u300aCell Reports Physical Science\u300b\u00a0<\/strong>Cell Reports Physical Science<\/i><\/em>\u00a03,<\/strong>\u00a0100790 (2022)<\/p>\n

\"\"<\/p>\n

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

\u56fe1. \u4e8c\u7ef4\u6750\u6599\u4e2d\u6cca\u677e\u6bd4\u884c\u4e3a\u7684\u793a\u610f\u56fe\u3002<\/p>\n

\"\"<\/p>\n

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\u56fe2.\u00a0Graphene+\u7684\u51e0\u4f55\u7ed3\u6784\u548c\u7a33\u5b9a\u6027\u9a8c\u8bc1\u3002<\/p>\n

\"\"<\/p>\n

\u4e0e\u77f3\u58a8\u70ef\u4e0d\u540c\uff0cGraphene+\u5177\u6709sp<\/em>2<\/sup>–sp<\/em>3<\/sup>\u6742\u5316\u7684\u4e8c\u7ef4\u78b3\u7f51\u7edc\u3002\u58f0\u5b50\u8272\u6563\u6ca1\u6709\u865a\u9891\u8868\u660e\u52a8\u529b\u5b66\u7a33\u5b9a\u6027\uff1b\u5ba4\u6e29\u4e0bAIMD\u6a21\u62df\u8bc1\u5b9e\u4e86\u70ed\u5b66\u7a33\u5b9a\u6027\uff1b\u80fd\u91cf\u4e0aGraphene+\u4f4e\u4e8e\u4e94\u89d2\u77f3\u58a8\u70ef\uff0c\u751a\u81f3\u6bd4\u5df2\u7ecf\u5728\u5b9e\u9a8c\u4e0a\u5408\u6210\u7684T-carbon\u66f4\u4f4e\u3002\u8fd9\u4e9b\u8bc1\u636e\u8868\u660egraphene+\u5177\u6709\u826f\u597d\u7684\u7a33\u5b9a\u6027\uff0c\u6709\u671b\u88ab\u5b9e\u9a8c\u5408\u6210\u3002<\/p>\n

\u56fe3. \u9762\u5916\u534a\u8d1f\u6cca\u677e\u6bd4\u884c\u4e3a\u7684\u6f14\u5316\u3002<\/p>\n

\"\"<\/p>\n

\u65e0\u8bbaGraphene+\u662f\u88ab\u62c9\u4f38\u8fd8\u662f\u88ab\u538b\u7f29\uff0c\u5b83\u5728\u9762\u5916\u65b9\u5411\u4e0a\u90fd\u81a8\u80c0\uff0c\u8fd9\u8868\u660egraphene+\u5728\u62c9\u4f38\u7684\u65f6\u5019\u624d\u8868\u73b0\u51fa\u8d1f\u6cca\u677e\u6bd4\u884c\u4e3a\uff0c\u8fd9\u4e0e\u5148\u524d\u62a5\u9053\u7684\u8d1f\u6cca\u677e\u6bd4\u884c\u4e3a\u4e0d\u540c\u3002\u5728graphene+\u4e2d\uff0c\u8d1f\u6cca\u677e\u6bd4\u7684\u51fa\u73b0\u80fd\u591f\u5f52\u56e0\u4e8e\u4e09\u79cd\u51e0\u4f55\u6a21\u5f0f\u7684\u7ade\u4e89\uff1a\uff081\uff09\u952e\u89d2(BA)\u6a21\u5f0f\uff0c\u4ec5\u952e\u89d2\u53d8\u5316\uff08\u0394\u03b8<\/em>\u22600\uff0c\u0394l<\/em>=0\uff09\uff0c\uff082\uff09\u952e\u957f(BL)\u6a21\u5f0f\uff0c\u4ec5\u952e\u957f\u53d8\u5316\uff08\u0394\u03b8<\/em>=0\uff0c\u0394l<\/em>\u22600\uff09, (3) \u539f\u5b50\u504f\u79fb (AO) \u6a21\u5f0f\uff0c\u5176\u4e2d\u53ea\u6709 sp<\/em>3<\/sup>\u00a0\u78b3\u539f\u5b50\u53d1\u751f\u4f4d\u79fb (d\u22600)\u3002\u7814\u7a76\u8868\u660e\uff0cAO \u548c BL \u6a21\u5f0f\u4e3b\u5bfc\u4e86\u8d1f\u6cca\u677e\u6bd4\u7684\u51fa\u73b0\u3002<\/p>\n

\u56fe4. Graphene+\u7684\u7535\u5b50\u72c4\u62c9\u514b\u6027\u8d28\uff08Dirac\u00a0nodal loop\uff09<\/p>\n

\"\"<\/p>\n

\u4e0e\u77f3\u58a8\u70ef\u7c7b\u4f3c\uff0cGraphene+\u4e5f\u5177\u6709\u72c4\u62c9\u514b\u6027\u8d28\u3002\u7136\u800c\u4e0e\u77f3\u58a8\u70ef\u4e0d\u540c\u7684\u662f\uff0cgraphene+\u4e2d\u7684\u4e24\u4e2a\u5177\u6709\u8fd1\u4f3c\u5706\u5f62\u6a2a\u622a\u9762\u7684\u72ec\u7acb\u5e26\u4ea4\u53c9\u5f62\u6210\u5177\u6709\u73af\u72b6\u5206\u5e03\u7684\u72c4\u62c9\u514b\u8282\u70b9\uff0c\u5373\u72c4\u62c9\u514b\u8282\u70b9\u73af\uff08Dirac\u00a0nodal loop\uff09\uff0c\u4e3b\u8981\u7531p<\/i><\/em>z<\/sub>\u8f68\u9053\u8d21\u732e\u3002\u65e0\u8bba\u65bd\u52a0\u5355\u8f74\/\u53cc\u8f74\u5e94\u53d8\u548c\u7535\u573a\uff0c\u72c4\u62c9\u514b\u8282\u70b9\u73af\u90fd\u4fdd\u6301\u7a33\u5b9a\u5b58\u5728\uff0c\u8868\u660e\u5176\u72c4\u62c9\u514b\u7279\u6027\u9a71\u52a8\u7684\u4f18\u826f\u6027\u80fd\u4e0d\u53d7\u5916\u754c\u673a\u68b0\u529b\u573a\u548c\u7535\u573a\u7684\u5e72\u6270\u3002<\/p>\n

\u3010\u53c2\u8003\u6587\u732e\u3011<\/b><\/strong><\/p>\n

Linfeng Yu, Zhen zhen Qin, Huimin Wang, Xiong Zheng, and Guangzhao Qin<\/strong>*<\/sup>, Half-negative Poisson’s ratio in graphene+ with intrinsic Dirac nodal loop, Cell Reports Physical Science<\/i><\/em>\u00a03,<\/b><\/strong>\u00a0100790 (2022)<\/p>\n","protected":false},"excerpt":{"rendered":"

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