{"id":230138,"date":"2021-11-25T06:30:20","date_gmt":"2021-11-24T22:30:20","guid":{"rendered":"http:\/\/www.cailiaoniu.com\/?p=230138"},"modified":"2021-11-24T17:00:34","modified_gmt":"2021-11-24T09:00:34","slug":"%e5%8c%97%e4%ba%ac%e9%ab%98%e5%8e%8b%e7%a7%91%e5%ad%a6%e7%a0%94%e7%a9%b6%e4%b8%ad%e5%bf%83jacs-%e5%8e%8b%e5%8a%9b%e8%b0%83%e6%8e%a7cup2se%e5%b1%82%e9%97%b4%e8%80%a6%e5%90%88%e8%af%b1%e5%af%bc","status":"publish","type":"post","link":"http:\/\/www.cailiaoniu.com\/?p=230138","title":{"rendered":"\u5317\u4eac\u9ad8\u538b\u79d1\u5b66\u7814\u7a76\u4e2d\u5fc3JACS: \u538b\u529b\u8c03\u63a7CuP2Se\u5c42\u95f4\u8026\u5408\u8bf1\u5bfc\u8d85\u5bfc\u7535\u6027"},"content":{"rendered":"

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

\u5c42\u72b6\u8303\u5fb7\u534e(vdW)\u6750\u6599\u5177\u6709\u53ef\u8c03\u7684\u7269\u7406\u5316\u5b66\u6027\u8d28\uff0c\u5c24\u9002\u4e8e\u65b0\u578b\u50ac\u5316\u5242\u548c\u5149\u7535\u5b50\u5668\u4ef6\u7b49\u65b9\u9762\u7684\u5e94\u7528\u5f00\u53d1\uff0c\u56e0\u800c\u5f15\u8d77\u4e86\u7814\u7a76\u8005\u7684\u6781\u5927\u5174\u8da3\u3002\u7814\u7a76\u4eba\u5458\u53ef\u7528\u4e0d\u540c\u7684\u65b9\u6cd5\u6765\u8c03\u8282\u5176\u5c42\u95f4\u7684\u8026\u5408\u5f3a\u5ea6\uff0c\u4ee5\u4ea7\u751f\u8bf8\u591a\u65b0\u5947\u7684\u6750\u6599\u6027\u8d28\u3002\u5176\u4e2d\u4e00\u79cd\u65b9\u6cd5\u662f\u964d\u4f4e\u5176\u7ef4\u5ea6\uff0c\u5f62\u6210\u53ea\u6709\u51e0\u5c42\u7684\u4e8c\u7ef4\u6750\u6599\uff1b\u6216\u8005\u901a\u8fc7\u63ba\u6742\u3001\u6539\u53d8\u5c42\u95f4\u5806\u53e0\u89d2\u3001\u6784\u5efa\u5f02\u8d28\u7ed3\u7b49\u6765\u8c03\u8282\u5c42\u95f4\u7684\u8026\u5408\u4f5c\u7528\u3002\u8fd9\u4e9b\u8c03\u63a7\u624b\u6bb5\u53ef\u4ee5\u4f7f\u4e8c\u7ef4\u6750\u6599\u5448\u73b0\u51fa\u78c1\u6027\u53cd\u8f6c\u548c\u8d85\u5bfc\u7535\u6027\u7b49\u5947\u5f02\u73b0\u8c61\u3002<\/p>\n

\u53e6\u5916\u4e00\u79cd\u65b9\u6cd5\u662f\u901a\u8fc7\u65bd\u52a0\u5916\u90e8\u538b\u529b\u6765\u8c03\u5236vdW\u6750\u6599\u7684\u5c42\u95f4\u8026\u5408\u4f5c\u7528\u3002\u867d\u7136\u8fd9\u4e9b\u5c42\u72b6\u6750\u6599\u7684\u5c42\u95f4\u76f8\u4e92\u4f5c\u7528\u7531\u8303\u5fb7\u534e\u529b\u6765\u4e3b\u5bfc\uff0c\u4f46\u5176\u5c42\u5185\u539f\u5b50\u95f4\u7684\u76f8\u4e92\u4f5c\u7528\u5219\u4e0e\u5b83\u4eec\u7684\u5316\u5b66\u6210\u5206\u9ad8\u5ea6\u76f8\u5173\u3002\u56e0\u6b64\uff0c\u5728\u9ad8\u538b\u4e0b\uff0c\u4e0d\u540c\u6750\u6599\u7684\u7ed3\u6784\u54cd\u5e94\u548c\u7269\u7406\u5316\u5b66\u6027\u8d28\u5c06\u6709\u6240\u4e0d\u540c\u3002\u4f8b\u5982\uff0c\u5728\u9ad8\u538b\u4e0b\uff0c\u7c7b\u4f3c\u91d1\u5c5e\u7684\u77f3\u58a8\u53ef\u4ee5\u53d8\u6210\u7edd\u7f18\u7684\u91d1\u521a\u77f3\uff0c\u800c\u7edd\u7f18\u4f53\u6216\u534a\u5bfc\u4f53\u5316\u5408\u7269\u4e5f\u53ef\u4ee5\u53d8\u6210\u91d1\u5c5e\uff0c\u751a\u81f3\u8d85\u5bfc\u4f53(\u5982FePSe3<\/sub>)\u3002\u57fa\u4e8e\u6b64\uff0c\u4eba\u4eec\u5bf9\u8fc7\u6e21\u91d1\u5c5e\u786b\u65cf\u5316\u7269\u7b49\u5c42\u72b6\u4e8c\u7ef4\u6750\u6599\u8fdb\u884c\u4e86\u6bd4\u8f83\u5e7f\u6cdb\u7684\u9ad8\u538b\u7814\u7a76\u3002\u7136\u800c\uff0c\u8fd9\u4e9b\u7814\u7a76\u5e76\u672a\u6d89\u53ca\u5143\u7d20\u94dc\u3002\u65b0\u578b\u94dc\u57fa\u8303\u5fb7\u534e\u6750\u6599\u7684\u8bb8\u591a\u7ed3\u6784\u548c\u7269\u7406\u5316\u5b66\u7b49\u6027\u8d28\u4ecd\u7136\u672a\u77e5\u3002\u56e0\u6b64\uff0c\u8be5\u5de5\u4f5c\u4ee5\u5316\u5b66\u7ec4\u6210\u548c\u6676\u4f53\u7ed3\u6784\u76f8\u5bf9\u7b80\u5355\u7684\u8303\u5fb7\u534e\u5316\u5408\u7269CuP2<\/sub>Se\u4e3a\u6a21\u578b\uff0c\u7814\u7a76\u9ad8\u538b\u5bf9\u5176\u7ed3\u6784\u3001\u5149\u5b66\u548c\u7535\u8f93\u8fd0\u7b49\u6027\u8d28\u7684\u5f71\u54cd\u53ca\u673a\u7406\u3002<\/p>\n

\u8fd1\u65e5\uff0c\u5317\u4eac\u9ad8\u538b\u79d1\u5b66\u7814\u7a76\u4e2d\u5fc3\u5f20\u8861\u4e2d<\/b><\/strong>\uff08\u901a\u8baf\u4f5c\u8005\uff09<\/b><\/strong>\u7b49\u4eba\u5229\u7528\u591a\u79cd\u539f\u4f4d\u9ad8\u538b\u5b9e\u9a8c\u6280\u672f\u548c\u7406\u8bba\u8ba1\u7b97\uff0c\u7814\u7a76\u4e86\u8be5\u65b0\u578b\u5c42\u72b6\u5316\u5408\u7269CuP2<\/sub>Se\u5728\u9ad8\u538b\u4e0b\u7684\u7ed3\u6784\u6f14\u53d8\u4ee5\u53ca\u5149\u5b66\u548c\u7535\u5b66\u7b49\u6027\u8d28\u7684\u53d8\u5316\u3002\u4ed6\u4eec\u53d1\u73b0\uff0cCuP2<\/sub>Se\u5728\u9ad8\u538b\u4e0b\u6709\u4e24\u4e2a\u540c\u6784\u76f8\u53d8\uff08\u5728\u7ea610\u548c20 GPa\u4e0b\uff09\u548c\u4e00\u4e2a\u8303\u5fb7\u534e\u76f8\u5230\u9ad8\u914d\u4f4d\u6570\u76f8\u7684\u8f6c\u53d8\uff08\u572835-40 GPa\u95f4\uff09\u3002\u8fd9\u4e9b\u76f8\u53d8\uff0c\u5bfc\u81f4\u4e86\u4e00\u4e2a\u7531\u534a\u5bfc\u4f53\u5230\u91d1\u5c5e\u4f53\u7684\u8f6c\u53d8(\u5728\u5ba4\u6e29\u548c\u7ea620 GPa\u4e0b)\uff0c\u4ee5\u53ca\u4e00\u4e2a\u7531\u91d1\u5c5e\u4f53\u5230\u8d85\u5bfc\u4f53\u7684\u8f6c\u53d8\uff08\u57283.3-5.7 K\u4e4b\u95f4\u548c\u00a027.0- 61.4 GPa\u4e0b\uff09\u3002\u7ecf\u8fc7BCS\u7406\u8bba\u6a21\u578b\u5316\u5206\u6790\uff0c\u4ed6\u4eec\u53d1\u73b0\uff0c\u8d85\u5bfc\u4e34\u754c\u6e29\u5ea6\u968f\u538b\u529b\u7684\u5347\u9ad8\uff0c\u4e3b\u8981\u5f52\u56e0\u4e8e\u9ad8\u538b\u4e0b\u4f53\u5f39\u6a21\u91cf\u548c\u8d39\u7c73\u80fd\u5904\u7684\u7535\u5b50\u6001\u5bc6\u5ea6\u968f\u538b\u529b\u7684\u63d0\u9ad8\u3002\u76f8\u5173\u6210\u679c\u4ee5\u201cMetallization and Superconductivity in the van der Waals Compound CuP2<\/sub>Se through Pressure-Tuning of the Interlayer Coupling\u201d\u4e3a\u9898\u53d1\u8868\u5728Journal of the American Chemical Society\u4e0a\u3002<\/p>\n

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

\u56fe\u4e00\u3001\u538b\u529b\u8bf1\u5bfc\u7684\u534a\u5bfc\u4f53\u5230\u91d1\u5c5e\u4f53\u7684\u8f6c\u53d8<\/b><\/strong><\/p>\n

\"\"<\/p>\n

(a) \u5e38\u6e29\u4e0bCuP2<\/sub>Se\u7535\u963b\u968f\u538b\u529b\u7684\u53d8\u5316\u56fe;<\/p>\n

(b) \u539f\u4f4d\u9ad8\u538b\u62c9\u66fc\u56fe;\u00a0(c) \u539f\u4f4d\u9ad8\u538b\u7d2b\u5916-\u53ef\u89c1\u5438\u6536\u5149\u8c31\u56fe;\u00a0(d) \u9ad8\u538b\u7ea2\u5916\u53cd\u5c04\u5149\u8c31\u56fe\uff1b<\/p>\n

(e) 17.5 \u548c27.0 GPa\u4e0b\u7535\u963b\u968f\u6e29\u5ea6\u7684\u53d8\u5316\u56fe\uff1b<\/p>\n

(f) DFT\u8ba1\u7b97\u7684\u5728\u4e0d\u540c\u538b\u529b\u4e0bCu2<\/sub>PSe\u7684\u7535\u5b50\u6001\u5bc6\u5ea6\u56fe\u3002<\/p>\n

\u56fe\u4e8c\u3001\u538b\u529b\u8bf1\u5bfc\u7684\u91d1\u5c5e\u4f53\u5230\u8d85\u5bfc\u4f53\u7684\u8f6c\u53d8<\/b><\/strong><\/p>\n

\"\"<\/p>\n

(a-b) CuP2<\/sub>Se\u52a0\u538b(a)\u548c\u5378\u538b(b)\u8fc7\u7a0b\u4e2d\u5f52\u4e00\u5316\u540e\u7684\u7535\u963b\u968f\u6e29\u5ea6\u7684\u53d8\u5316\u56fe;<\/p>\n

(c) CuP2<\/sub>Se \u4e34\u754c\u8f6c\u53d8\u6e29\u5ea6\u968f\u538b\u529b\u7684\u53d8\u5316\u56fe;<\/p>\n

(d) 39.6 GPa\u4e0b\uff0cCuP2<\/sub>Se\u5728\u4e0d\u540c\u78c1\u573a\u5f3a\u5ea6\u4e0b\u7535\u963b\u968f\u6e29\u5ea6\u7684\u53d8\u5316\u56fe;<\/p>\n

(e) \u4e0d\u540c\u538b\u529b\u4e0b\u4e34\u754c\u78c1\u573a\u4e0e\u8d85\u5bfc\u4e34\u754c\u6e29\u5ea6\u7684\u5173\u7cfb\u56fe;<\/p>\n

(f) CuP2<\/sub>Se \u8d85\u5bfc\u4f53\u7cfb\u7684\u6e29\u5ea6-\u538b\u529b\u76f8\u56fe\u3002<\/p>\n

\u56fe\u4e09\u3001\u540c\u6b65\u8f90\u5c04\u6d4b\u5b9a\u9ad8\u538b\u4e0b\u7ed3\u6784\u7684\u53d8\u5316<\/b><\/strong><\/p>\n

\"\"<\/p>\n

(a) CuP2<\/sub>Se\u9ad8\u538b\u4e0b\u539f\u4f4dXRD\u56fe\u8c31;<\/p>\n

(b) Rietveld \u7cbe\u4fee\u51fa\u7684\u6676\u80de\u53c2\u6570\u968f\u538b\u529b\u7684\u53d8\u5316\u53ca\u4e0eDFT\u8ba1\u7b97\u503c\u7684\u6bd4\u8f83;<\/p>\n

(c) Rietveld \u7cbe\u4fee\u51fa\u7684\u6676\u80de\u4f53\u79ef\u968f\u538b\u529b\u7684\u53d8\u5316\u53ca\u4e0eDFT\u8ba1\u7b97\u503c\u7684\u6bd4\u8f83\u3002<\/p>\n

\u56fe\u56db\u3001\u538b\u529b\u8bf1\u5bfc\u7684\u5c42\u95f4\u6ed1\u79fb\u548c\u6837\u54c1\u7eb3\u7c73\u5316<\/b><\/strong><\/p>\n

\"\"<\/p>\n

(a) CuP2<\/sub>Se \u572827.3 GPa\u4e0b\u5378\u538b\u540e\u7684\u626b\u63cf\u7535\u955c\u56fe;<\/p>\n

(b) CuP2<\/sub>Se \u572827.3 GPa\u4e0b\u5378\u538b\u540e\u7684\u900f\u5c04\u7535\u955c\u56fe\u53ca\u9009\u533a\u7535\u5b50\u884d\u5c04\u56fe;<\/p>\n

(c) CuP2<\/sub>Se \u572851.8 GPa\u4e0b\u5378\u538b\u540e\u7684\u626b\u63cf\u7535\u955c\u56fe;<\/p>\n

(d) CuP2<\/sub>Se \u572851.8 GPa\u4e0b\u5378\u538b\u540e\u7684\u900f\u5c04\u7535\u955c\u56fe\u53ca\u9009\u533a\u7535\u5b50\u884d\u5c04\u56fe\u3002<\/p>\n

\u56fe\u4e94\u3001DFT\u8ba1\u7b97\u9884\u6d4b\u9ad8\u538b\u4e0b\u6676\u4f53\u7ed3\u6784\u7684\u6f14\u5316<\/b><\/strong><\/p>\n

\"\"<\/p>\n

(a-d) DFT\u8ba1\u7b97\u9884\u6d4b\u7684CuP2<\/sub>Se\u5728\u00a00 (a), 20 (b), 40 (c)\u00a0\u548c\u00a050 GPa (d)\u4e0b\u7684\u6676\u4f53\u7ed3\u6784\u3002<\/p>\n

\u56fe\u516d\u3001\u8d85\u5bfc\u8f6c\u53d8\u6e29\u5ea6\u968f\u538b\u529b\u53d8\u5316\u7684BCS\u7406\u8bba\u6a21\u578b\u5316<\/b><\/strong><\/p>\n

\"\"<\/p>\n

(a) CuP2<\/sub>Se\u5728\u8d39\u7c73\u80fd\u7ea7\u5904\u7684\u7535\u5b50\u6001\u5bc6\u5ea6\u548c\u4f53\u5f39\u6a21\u91cf\u968f\u538b\u529b\u7684\u53d8\u5316\u56fe;<\/p>\n

(b) BCS \u65b9\u7a0b\u4e2d\u4e24\u9879\u53c2\u6570\u968f\u538b\u529b\u7684\u53d8\u5316\u56fe;<\/p>\n

(c) \u5b9e\u9a8c\u548cBCS\u65b9\u7a0b\u62df\u5408\u7684\u8d85\u5bfc\u8f6c\u53d8\u6e29\u5ea6\u5bf9\u6bd4\u56fe\u3002<\/p>\n

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

\u4f5c\u8005\u5408\u6210\u4e86\u94dc\u57fa\u5c42\u72b6\u5316\u5408\u7269CuP2<\/sub>Se\u5e76\u5229\u7528\u591a\u79cd\u9ad8\u538b\u5b9e\u9a8c\u6280\u672f\u548c\u7406\u8bba\u8ba1\u7b97\uff0c\u7814\u7a76\u4e86\u5176\u5728\u9ad8\u538b\u4e0b\u7684\u7ed3\u6784\u53d8\u5316\u4ee5\u53ca\u5176\u5149\u5b66\u3001\u7535\u8f93\u8fd0\u548c\u8d85\u5bfc\u7535\u6027\u3002\u7ed3\u679c\u8868\u660e\uff0c\u968f\u7740\u538b\u529b\u7684\u589e\u52a0\uff0cCuP2<\/sub>Se\u51fa\u73b0\u4e86\u4e30\u5bcc\u7684\u7ed3\u6784\u53d8\u5316\uff0c\u5305\u62ec\u5c42\u95f4\u8ddd\u7f29\u5c0f\u3001\u5c42\u95f4\u6ed1\u79fb\u3001\u5c42\u95f4\u5408\u5e76\u4ee5\u53ca\u6676\u4f53\u7684\u7834\u788e\u548c\u7eb3\u7c73\u5316\u7b49\u3002\u4f34\u968f\u8fd9\u4e9b\u7ed3\u6784\u53d8\u5316\uff0c\u51fa\u73b0\u4e86\u4e00vdW\u534a\u5bfc\u4f53\u76f8\u5728\u7ea620 GPa\u4e0b\u5411\u4e00vdW\u91d1\u5c5e\u76f8\u6216\u8d85\u5bfc\u76f8\u7684\u8f6c\u53d8\u3002\u5e76\u4e14\uff0c\u572835 ~ 40 GPa\u4e4b\u95f4\uff0c\u8be5\u76f8\u8fdb\u4e00\u6b65\u8f6c\u53d8\u4e3a\u4e00\u9ad8\u914d\u4f4d\u6570\u91d1\u5c5e\u76f8\u6216\u8d85\u5bfc\u76f8\u3002BCS\u7406\u8bba\u6a21\u578b\u5316\u5206\u6790\u5219\u53d1\u73b0\uff0c\u5176\u8d85\u5bfc\u4e34\u754c\u6e29\u5ea6\u968f\u538b\u529b\u7684\u5347\u9ad8\u4e3b\u8981\u6765\u6e90\u4e8e\u9ad8\u538b\u4e0b\u4f53\u5f39\u6a21\u91cf\u7684\u589e\u52a0\u548c\u8d39\u7c73\u80fd\u5904\u7535\u5b50\u6001\u5bc6\u5ea6\u7684\u63d0\u9ad8\u3002\u6b64\u5916\uff0c\u9ad8\u538b\u4f7f\u5f97CuP2<\/sub>Se\u7eb3\u7c73\u5316\u540e\u5373\u4f7f\u5728\u63a5\u8fd1\u5b89\u5fb7\u68ee\u6781\u9650\u7eb3\u7c73\u5c3a\u5bf8\u7684\u60c5\u51b5\u4e0b\u4f9d\u7136\u53ef\u4ee5\u51fa\u73b0\u8d85\u5bfc\u7535\u6027\u3002\u8be5\u5de5\u4f5c\u7684\u65b0\u53d1\u73b0\u5bf9\u4e8e\u901a\u8fc7\u7b80\u5355\u7684\u538b\u529b\u8c03\u8282\u5c42\u95f4\u8026\u5408\u6765\u5f00\u53d1\u5c42\u72b6\u8303\u5fb7\u534e\u5316\u5408\u7269\u7684\u65b0\u5e94\u7528\u5177\u6709\u91cd\u8981\u610f\u4e49\u3002<\/p>\n

\u6587\u732e\u94fe\u63a5\uff1a<\/b><\/strong>\u201c<\/b><\/strong>Metallization and Superconductivity in the van der Waals<\/b><\/strong>\u00a0<\/b><\/strong>Compound CuP<\/b><\/strong>2<\/b><\/sub><\/strong>Se through Pressure-Tuning of the Interlayer Coupling<\/b><\/strong>\u201d<\/b><\/strong>\u00a0\uff08<\/b><\/strong>J. Am. Chem. Soc.<\/i><\/b><\/em><\/strong>\uff0c <\/b><\/strong>2021<\/b><\/strong>\uff0c<\/b><\/strong>10.1021\/jacs.1c09735\uff09<\/b><\/strong><\/p>\n

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