{"id":234158,"date":"2022-03-14T06:08:15","date_gmt":"2022-03-13T22:08:15","guid":{"rendered":"\/\/m.iemloyee.com\/?p=234158"},"modified":"2022-03-13T22:08:25","modified_gmt":"2022-03-13T14:08:25","slug":"%e6%9c%80%e6%96%b0-nature-materials%ef%bc%9ate-nws%e4%b8%ad%e6%a0%85%e6%9e%81%e5%8f%af%e8%b0%83%e5%92%8c%e6%89%8b%e6%80%a7%e4%be%9d%e8%b5%96%e7%9a%84%e7%94%b5%e8%8d%b7-%e8%87%aa%e6%97%8b%e8%bd%ac","status":"publish","type":"post","link":"\/\/m.iemloyee.com\/?p=234158","title":{"rendered":"\u6700\u65b0 Nature Materials\uff1aTe NWs\u4e2d\u6805\u6781\u53ef\u8c03\u548c\u624b\u6027\u4f9d\u8d56\u7684\u7535\u8377-\u81ea\u65cb\u8f6c\u6362"},"content":{"rendered":"

\u4e00\u3001\u3010\u5bfc\u8bfb\u3011<\/strong><\/p>\n

\u81ea\u65cb\u970d\u5c14\u6548\u5e94\uff08spin Hall effect\uff09<\/span><\/strong>\u7b49\u7535\u8377\u5230\u81ea\u65cb\u76f8\u4e92\u8f6c\u6362\u7684\u73b0\u8c61\u80fd\u591f\u5728\u6ca1\u6709\u78c1\u6027\u5143\u4ef6\u7684\u60c5\u51b5\u4e0b\u4ea7\u751f\u81ea\u65cb\u7535\u6d41\uff0c\u8fd9\u662f\u8fc8\u5411\u4e0b\u4e00\u4ee3\u81ea\u65cb\u7535\u5b50\u5668\u4ef6\u7684\u57fa\u672c\u4e00\u6b65\u3002\u57c3\u5fb7\u5c14\u65af\u5766\u6548\u5e94\uff08Edelstein effect\uff09<\/strong><\/span>\uff0c\u4e5f\u79f0\u4e3a\u53cd\u81ea\u65cb\u7535\u6d41\u6548\u5e94\uff0c\u51fa\u73b0\u5728\u5177\u6709\u5f3a\u81ea\u65cb\u8f68\u9053\u8026\u5408\u548c\u53cd\u8f6c\u5bf9\u79f0\u7834\u7f3a\u7684\u6750\u6599\u4e2d\uff0c\u5982\u5e94\u53d8\u534a\u5bfc\u4f53\u548c\u62d3\u6251\u7edd\u7f18\u5b50\u8868\u9762\u3002\u5728\u8fd9\u4e9b\u7cfb\u7edf\u4e2d\uff0c\u7535\u5b50\u7684\u81ea\u65cb\u88ab\u9501\u5b9a\u5728\u4e0e\u5176\u52a8\u91cf\u5782\u76f4\u7684\u65b9\u5411\u4e0a\uff0c\u56e0\u6b64\u7535\u8377\u7535\u6d41\u7684\u6d41\u52a8\u5bfc\u81f4\u5782\u76f4\u53d6\u5411\u4e0a\u7684\u5747\u5300\u81ea\u65cb\u6781\u5316\u3002\u8fdb\u4e00\u6b65\u964d\u4f4e\u6676\u4f53\u5bf9\u79f0\u6027\u53ef\u4ee5\u5728\u975e\u5e38\u89c4\u65b9\u5411\u4e0a\u4ea7\u751f\u81ea\u65cb\u6781\u5316\uff0c\u5e76\u4e3a\u5668\u4ef6\u5e26\u6765\u65b0\u7684\u57fa\u672c\u6548\u5e94\u548c\u914d\u7f6e\u3002\u624b\u6027\u6750\u6599\uff08chiral materials\uff09\u662f\u5bf9\u79f0\u6027\u7834\u7f3a\u7684\u7ec8\u6781\u8868\u73b0\uff0c\u7f3a\u4e4f\u53cd\u8f6c\u548c\u955c\u50cf\u5bf9\u79f0\u6027\u3002\u5728\u624b\u6027\u65e0\u673a\u6676\u4f53\u4e2d\uff0c\u5f88\u5c11\u7814\u7a76\u624b\u6027\u8bf1\u5bfc\u81ea\u65cb\u9009\u62e9\u6027\u73b0\u8c61\u3002\u78b2\uff08Te\uff09\u662f\u4e00\u79cd\u5177\u6709\u5f3a\u81ea\u65cb\u8f68\u9053\u8026\u5408\u548c\u624b\u6027\u7ed3\u6784\u7684\u6750\u6599\uff0c\u53ef\u5728\u7eb3\u7c73\u7ebf\uff08NWs\uff09\u6216\u5177\u6709\u826f\u597d\u5bfc\u7535\u6027\u7684\u8584\u7247\u4e2d\u5408\u6210\uff0c\u662f\u7814\u7a76\u975e\u5e38\u89c4\u624b\u6027\u7535\u8377-\u81ea\u65cb\u8f6c\u6362\u7684\u7406\u60f3\u6750\u6599\u3002\u901a\u8fc7\u5149\u5b66\u548c\u6838\u78c1\u5171\u632f\u6d4b\u91cf\uff0c\u76ee\u524d\u4ec5\u5728\u5757\u72b6Te\u4e2d\u63d0\u4f9b\u4e86\u7535\u6d41\u8bf1\u5bfc\u81ea\u65cb\u6781\u5316\u7684\u8ff9\u8c61\uff0c\u4f46\u8fd9\u4e9b\u68c0\u6d4b\u6280\u672f\u548c\u6beb\u7c73\u5927\u5c0f\u6676\u4f53\u7684\u4f7f\u7528\u4e0d\u9002\u5408\u96c6\u6210\u5230\u5168\u7535\u5b50\u7eb3\u7c73\u5668\u4ef6\u4e2d\u3002
\n \"\"<\/p>\n

\u4e8c\u3001\u3010\u6210\u679c\u63a0\u5f71\u3011<\/strong><\/p>\n

\u8fd1\u65e5\uff0c\u897f\u73ed\u7259CIC nanoGUNE BRTA\u7684Luis E. Hueso\u3001F\u00e8lix Casanova\u548cMarco Gobbi\uff08\u5171\u540c\u901a\u8baf\u4f5c\u8005\uff09\u7b49\u4eba<\/strong>\u62a5\u9053\u4e86\u5929\u7136\u7a7a\u7a74\u63ba\u6742\u5355\u6676Te NWs\u4e2d\u7684\u624b\u6027\u4f9d\u8d56\u548c\u6805\u6781\u53ef\u8c03\u7684Edelstein\u6548\u5e94\u3002\u901a\u8fc7\u8bb0\u5f55\u4f9d\u8d56\u4e8e\u7535\u6d41\u548c\u5916\u52a0\u78c1\u573a\u7684\u76f8\u5bf9\u65b9\u5411\u7684\u5355\u5411\u78c1\u963b\uff08unidirectional magnetoresistance, UMR\uff09<\/strong>\u6765\u68c0\u6d4b\u51c0\u81ea\u65cb\u6781\u5316\u3002\u6d4b\u8bd5\u7ed3\u679c\u8868\u660e\uff0c\u4e0eRashba\u7cfb\u7edf\u548c\u62d3\u6251\u7edd\u7f18\u4f53\u4e0d\u540c\uff0cTe\u4e2d\u7684\u7535\u8377\u7535\u6d41\u4f1a\u5bfc\u81f4\u81ea\u65cb\u6781\u5316\u6cbf\u7535\u6d41\u8def\u5f84\u5b9a\u5411\uff0c\u5e76\u4e14\u5bf9\u4e8e\u5de6\u65cb\u6216\u53f3\u65cbNWs\u6307\u5411\u76f8\u53cd\u7684\u65b9\u5411\u3002\u6d4b\u91cf\u7684UMR\u662f\u57fa\u4e8e\u624b\u6027\u4f9d\u8d56\u7684Edelstein\u6548\u5e94\u6765\u89e3\u91ca\uff0c\u8be5\u6548\u5e94\u7531Te\u4ef7\u5e26H\u70b9\u5904\u7684\u5f84\u5411\u81ea\u65cb\u7ec7\u6784\u5f15\u8d77\uff0c\u800c\u8be5\u7ec7\u6784\u5728\u7a7a\u7a74\u63ba\u6742Te NWs\u4e2d\u5360\u4e3b\u5bfc\u5730\u4f4d\u3002\u4f7f\u7528\u4f20\u7edf\u7684UMR\u54c1\u8d28\u56e0\u6570\uff0c\u636e\u6240\u77e5Te\u4e2d\u7684\u8fd9\u79cd\u6548\u5e94\u662f\u76ee\u524d\u89c2\u5bdf\u5230\u7684\u6700\u5927\u503c\u3002\u66f4\u91cd\u8981\u7684\u662f\uff0cTe NWs\u7684\u9759\u7535\u6805\u6781\u4f7f\u5f97\u80fd\u591f\u8c03\u63a7\u5176Edelstein\u6548\u5e94\uff0c\u4ece\u800c\u5c06UMR\u632f\u5e45\u7684\u7535\u8c03\u8c10\u4e3a6\u500d\u3002\u624b\u6027Te NWs\u4e2d\u81ea\u65cb\u6781\u5316\u7684\u5168\u7535\u4ea7\u751f\u3001\u63a7\u5236\u548c\u68c0\u6d4b\u4e3a\u56fa\u6001\u81ea\u65cb\u7535\u5b50\u5668\u4ef6\u7684\u7684\u624b\u6027\u8bbe\u8ba1\u5f00\u8f9f\u4e86\u9053\u8def\u3002\u7814\u7a76\u6210\u679c\u4ee5\u9898\u4e3a\u201cGate-tuneable and chirality-dependent charge-to-spin conversion in tellurium nanowires\u201d<\/strong>\u53d1\u5e03\u5728\u56fd\u9645\u8457\u540d\u671f\u520aNature Materials<\/em><\/strong>\u4e0a\u3002<\/p>\n

\u672c\u6587\u6240\u6709\u56fe\u6765\u6e90\u4e8e\u00a9 2022 Springer Nature Limited\u3002<\/p>\n

\u4e09\u3001\u3010\u6838\u5fc3\u521b\u65b0\u3011<\/strong><\/p>\n

\u221a\u5229\u7528\u7535\u6d41\u548c\u5916\u52a0\u78c1\u573a\u7684\u76f8\u5bf9\u65b9\u5411\u7684\u5355\u5411\u78c1\u7535\u963b\uff08UMR\uff09\u68c0\u6d4b\u4e86\u51c0\u81ea\u65cb\u6781\u5316<\/strong><\/span>\u3002<\/p>\n

\u221a\u4f7f\u7528\u4f20\u7edf\u7684UMR\u54c1\u8d28\u56e0\u6570\uff0c\u5728Te NWs\u4e2d\u89c2\u5bdf\u5230Edelstein\u6548\u5e94<\/span><\/strong>\u7684\u6700\u5927\u503c\u3002<\/p>\n

\u56db\u3001\u3010\u6570\u636e\u6982\u89c8\u3011<\/strong><\/p>\n

\u56fe\u4e00\u3001Te NWs\u7684\u6676\u4f53\u5b66\u8868\u5f81\u3001\u7535\u5b50\u80fd\u5e26\u7ed3\u6784\u548c\u81ea\u65cb\u7ec7\u6784<\/strong>
\n \"\"\uff08a\uff09Te NWs\u7684\u626b\u63cf\u7535\u5b50\u663e\u5fae\u955c\u56fe\u50cf\uff1b<\/p>\n

\uff08b\uff09\u4e09\u89d2\u5f62Te\u7684\u5de6\/\u53f3\u65cb\u6676\u4f53\u7ed3\u6784\u76843D\u793a\u610f\u56fe\uff1b<\/p>\n

\uff08c\uff09Te\u8584\u7247\u7684STEM\u56fe\u50cf\uff1b<\/p>\n

\uff08d\uff09\u4e24\u4e2a\u5177\u6709\u76f8\u53cd\u624b\u6027\u7684Te NWs\u7684\u6676\u4f53\u7ed3\u6784\u793a\u610f\u56fe\u548cSTEM\u56fe\uff1b<\/p>\n

\uff08e\uff09H\u70b9\u5468\u56f4\u7684Te\u80fd\u5e26\u7ed3\u6784\uff1b<\/p>\n

\uff08f\uff09\u5728\u03b5=\u22120.1 eV\u5904\uff0c\u5de6\/\u53f3\u65cbTe\u7684\u7b49\u80fd\u8f6e\u5ed3<\/p>\n

\u56fe\u4e8c\u3001Te NW\u7684\u7535\u78c1\u7279\u6027<\/strong>
\n \"\"\uff08a\uff09\u4f20\u7edf\u7684Te NWs\u4e0ePt\u89e6\u70b9\u63a5\u89e6\u7684\u5149\u5b66\u56fe\u50cf\uff1b<\/p>\n

\uff08b\uff09\u5728\u96f6\u78c1\u573a\u4e0b\uff0c\u56db\u63a2\u9488\u7535\u963b\u7684\u6e29\u5ea6\u4f9d\u8d56\u6027\uff1b<\/p>\n

\uff08c\uff09Te\u78c1\u963b\u5728\u4e0d\u540c\u6e29\u5ea6\u4e0b\u6cbf\u6c34\u5e73\u548c\u6a2a\u5411\u624b\u6027z\u8f74\u6d4b\u91cf\u503c\uff1b<\/p>\n

\uff08d\uff09R<\/em>avg<\/sup>\u5728\u4e0d\u540c\u78c1\u573a\u548cT= 0 K\u4e0b\u7684\u89d2\u5ea6\u4f9d\u8d56\u6027<\/p>\n

\u56fe\u4e09\u3001\u53f3\u65cb\u548c\u5de6\u65cbTe NWs\u4e2d\u7684\u5355\u5411\u78c1\u963b<\/strong>
\n \"\"\uff08a-b\uff09\u4ee3\u8868\u6027\u8d1f\u8d23UMR\u7684Edelstein\u673a\u5236\u7684\u793a\u610f\u56fe\uff1b<\/p>\n

\uff08c\uff09\u6837\u54c1\u793a\u610f\u56fe\u548c\u5b9a\u4e49\u78c1\u573aB\u76f8\u5bf9\u4e8e\u7535\u6d41\u65b9\u5411\u7684\u89d2\u5ea6\u03b1\u7684\u6d4b\u91cf\u914d\u7f6e\uff1b<\/p>\n

\uff08d-e\uff09\u57289 T\u548c10 K\u6d4b\u91cf\u7684\u4e24\u4e2a\u5177\u6709\u76f8\u53cd\u624b\u6027\u7684Te NWs\u7684\u78c1\u963b\u7684\u89d2\u5ea6\u4f9d\u8d56\u6027\uff1b<\/p>\n

\uff08f-i\uff09\u4e0e\u89d2\u5ea6\u76f8\u5173\u7684UMR\uff0c\u4f5c\u4e3a\u65bd\u52a0\u7535\u6d41\u7684\u51fd\u6570\u548c\u78c1\u573a\u7684\u51fd\u6570<\/p>\n

\u56fe\u56db\u3001\u5355\u5411\u78c1\u963b\u7684\u6805\u6781\u8c03\u5236\u53ca\u4e0e\u7406\u8bba\u6bd4\u8f83<\/strong>
\n \"\"\uff08a\uff09\u5bf9\u4e8e\u65bd\u52a0\u4e0d\u540c\u6805\u6781\u7535\u538bV<\/em>G<\/sub>\u7684\u5de6\u65cbTe NWs\uff0c\u5728B=9 T\u3001T=10 K\u548c\u00b1I<\/em>z<\/sub>=\u00b11 \u03bcA\u6d4b\u91cf\u7684\u5f52\u4e00\u5316R<\/em>diff<\/sup>\u89d2\u5ea6\u4f9d\u8d56\u6027\uff1b<\/p>\n

\uff08b\uff09\u5f52\u4e00\u5316\u4fe1\u53f7\u5e45\u5ea6\u7684\u6805\u6781\u7535\u538b\u4f9d\u8d56\u6027\uff1b<\/p>\n

\uff08c\uff09\u7535\u6d41\u5bc6\u5ea6\u901a\u8fc7Edelstein\u6548\u5e94\u5bf9\u4e0d\u540c\u8d39\u7c73\u80fd\u91cf\u4f4d\u7f6e\u8bf1\u5bfc\u7684\u6bcf\u4e2a\u6676\u80de\u81ea\u65cb\uff08S<\/em>z<\/sub>\uff09<\/p>\n

\u4e94\u3001\u3010\u6210\u679c\u542f\u793a\u3011<\/strong><\/p>\n

\u7efc\u4e0a\u6240\u8ff0\uff0c\u4f5c\u8005\u62a5\u9053\u4e86\u5355\u6676Te NWs\u4e2d\u624b\u6027\u76f8\u5173\u81ea\u65cb\u6781\u5316\u7684\u5168\u7535\u4ea7\u751f\u3001\u8c03\u63a7\u548c\u68c0\u6d4b\u3002\u624b\u6027\u8d77\u6e90\u7684\u81ea\u65cb\u6781\u5316\u4ea7\u751f\u7684UMR\u6bd4\u5df2\u62a5\u9053\u7684\u5176\u4ed6\u975e\u624b\u6027\u7cfb\u7edf\u7684\u5927\u4e00\u5230\u51e0\u4e2a\u6570\u91cf\u7ea7\uff0c\u540c\u65f6\u8fd8\u53ef\u4ee5\u901a\u8fc7\u9759\u7535\u6805\u6781\u8fdb\u884c\u8c03\u63a7UMR\u3002\u8fd9\u4e9b\u6548\u5e94\u662f\u7531\u6765\u81eaTe\u5f84\u5411\u81ea\u65cb\u7ec7\u6784\u7684Edelstein\u6548\u5e94\u5f15\u8d77\u3002\u4e0e\u4f20\u7edf\u7684Rashba\u7cfb\u7edf\u4e0d\u540c\uff0c\u5e76\u4e14\u5728\u6709\u673a\u5206\u5b50\u4e2d\u89c2\u5bdf\u5230\u7684\u624b\u6027\u8bf1\u5bfc\u81ea\u65cb\u9009\u62e9\u6027\uff0c\u8bf1\u5bfc\u81ea\u65cb\u6781\u5316\u6cbf\u7535\u6d41\u65b9\u5411\u53d6\u5411\u3002\u4f5c\u8005\u8ba4\u4e3a\u57fa\u4e8eEdelstein\u6548\u5e94\u5bf9\u8fd9\u79cd\u73b0\u8c61\u7684\u63cf\u8ff0\u53ef\u80fd\u4f1a\u6269\u5c55\u5230\u5176\u4ed6\u5177\u6709\u5e73\u79fb\u5bf9\u79f0\u6027\u7684\u624b\u6027\u7cfb\u7edf<\/strong><\/span>\u3002\u8be5\u7814\u7a76\u4e3a\u65e0\u673a\u624b\u6027Te NWs\u4e2d\u7ed3\u6784\u624b\u6027\u548c\u7535\u5b50\u81ea\u65cb\u4e4b\u95f4\u7684\u76f8\u4e92\u4f5c\u7528\u5960\u5b9a\u4e86\u575a\u5b9e\u7684\u57fa\u7840\uff0c\u4ece\u800c\u80fd\u591f\u8bbe\u8ba1\u975e\u5e38\u89c4\u7684\u5168\u7535\u5668\u4ef6\u3002<\/p>\n

\u6587\u732e\u94fe\u63a5\uff1aGate-tuneable and chirality-dependent charge-to-spin conversion in tellurium nanowires<\/a><\/strong>. Nature Materials<\/em>, 2022<\/strong>, DOI: 10.1038\/s41563-022-01211-7.<\/p>\n

\u672c\u6587\u7531CQR\u7f16\u8bd1\u3002<\/p>\n

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