{"id":248500,"date":"2023-03-20T06:10:57","date_gmt":"2023-03-19T22:10:57","guid":{"rendered":"\/\/m.iemloyee.com\/?p=248500"},"modified":"2023-03-16T17:25:19","modified_gmt":"2023-03-16T09:25:19","slug":"%e7%94%b5%e5%ad%90%e7%a7%91%e5%a4%a7%e5%92%8c%e6%88%90%e9%83%bd%e5%a4%a7%e5%ad%a6%e6%9c%80%e6%96%b0nature%e6%b0%a2%e5%af%b9%e9%95%8d%e9%85%b8%e7%9b%90%e8%b6%85%e5%af%bc%e6%80%a7%e7%9a%84%e5%85%b3","status":"publish","type":"post","link":"\/\/m.iemloyee.com\/?p=248500","title":{"rendered":"\u7535\u5b50\u79d1\u5927\u548c\u6210\u90fd\u5927\u5b66\u6700\u65b0Nature:\u6c22\u5bf9\u954d\u9178\u76d0\u8d85\u5bfc\u6027\u7684\u5173\u952e\u4f5c\u7528"},"content":{"rendered":"

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

\u00a0 2019\u5e74\uff0c\u674e\u4e39\u67ab\u535a\u58eb\u53d1\u8868\u4e86\u4e00\u9879\u91cd\u8981\u6210\u679c\uff0c\u5373\u9996\u6b21\u53d1\u73b0\u4e86\u65e0\u9650\u5c42\u7ed3\u6784\u7684\u954d\u6c27\u5316\u7269\u8d85\u5bfc\u6750\u6599Nd0.8<\/sub>Sr0.2<\/sub>NiO2<\/sub>\u8584\u819c\u5177\u6709\u975e\u5e38\u89c4\u7684\u8d85\u5bfc\u6027\uff0c\u5176\u6700\u5927\u8d85\u5bfc\u6e29\u5ea6(T<\/em>c<\/sub>)\u7ea6\u4e3a15K\u3002\u968f\u540e\uff0c\u5b66\u672f\u754c\u4e5f\u53d6\u5f97\u4e86\u4e00\u4e9b\u6709\u76ca\u7684\u8fdb\u5c55\uff0c\u4f8b\u5982\uff0c\u7a7a\u7a74\u63ba\u6742\u8d85\u5bfc\u76f8\u56fe\u3001\u53cd\u94c1\u78c1\u5173\u8054\u6027\u3001Nd6<\/sub>Ni5<\/sub>O12<\/sub>\u7684\u8d85\u5bfc\u6027\u3001\u7535\u8377\u5bc6\u5ea6\u6ce2(CDW)\u7b49\uff0c\u4f46\u8be5\u9886\u57df\u4ecd\u5904\u4e8e\u8d77\u6b65\u9636\u6bb5\u3002\u5176\u4e2d\u4e00\u4e2a\u6700\u5173\u952e\u7684\u6311\u6218\u5728\u4e8e\u6750\u6599\u7684\u5408\u6210\uff0c\u5176\u5b9e\uff0c\u7a0d\u5fae\u4e86\u89e3\u6750\u6599\u5316\u5b66\u7684\u4eba\u90fd\u53ef\u4ee5\u53d1\u73b0\uff0cRNiO2<\/sub>\u6750\u6599\u4e2d\u7684Ni\u5143\u7d20\u7684\u5316\u5408\u4ef7\u4e3a\u4e0d\u5bfb\u5e38\u7684+1\u4ef7\uff0c\u5176\u5408\u6210\u8def\u5f84\u5f88\u53ef\u80fd\u9700\u8981\u5316\u5b66\u8fd8\u539f\u6cd5\uff0c\u6ca1\u9519\uff0c\u65e9\u57281983\u5e74\uff0c\u5c31\u6709\u5b66\u8005\u91c7\u7528\u8fd9\u4e00\u601d\u8def\u5b9e\u73b0\u4e86\u8be5\u4f53\u7cfb\u7684\u5408\u6210\uff08J. Chem. Soc. Faraday Trans. II<\/em>\u00a079<\/strong>, 1181\u20131194 (1983)\uff0c\u8fd9\u4e00\u5408\u6210\u601d\u8def\u4e5f\u88ab2019\u5e74\u7684\u7a81\u7834\u6027\u6210\u679c\u6240\u91c7\u7528\uff0c\u4e0d\u8fc7\uff0c\u8fd9\u4e00\u5408\u6210\u8def\u5f84\u901a\u5e38\u901a\u8fc7\u91d1\u5c5e\u6c22\u5316\u7269\u7684\u62d3\u6251\u8fd8\u539f\u53cd\u5e94\u5b9e\u73b0\uff0c\u90a3\u4e48\uff0c\u95ee\u9898\u6765\u4e86\uff0c\u8fd9\u4e00\u5316\u5b66\u8fc7\u7a0b\u6781\u6709\u53ef\u80fd\u5f15\u5165\u6c22\u5143\u7d20\u3002<\/p>\n

\u00a0 \u5173\u4e8e\u6c22\uff0c\u6750\u6599\u5b66\u754c\u7684\u540c\u4ec1\u4eec\u90fd\u6e05\u695a\uff0c\u6c22\u5143\u7d20\u8d28\u8f7b\uff0c\u5927\u90e8\u5206\u5e38\u89c4\u8868\u5f81\u624b\u6bb5\u96be\u4ee5\u6355\u6349\u5230\u5b83\u7684\u8e2a\u5f71\uff0c\u4e0d\u8fc7\uff0c\u6709\u4e00\u79cd\u8868\u5f81\u624b\u6bb5\u5374\u53ef\u4ee5\u62c5\u6b64\u91cd\u4efb\uff0c\u5c31\u662f\u4e8c\u6b21\u79bb\u5b50\u8d28\u8c31\uff08SIMS\uff09\uff0c\u90a3\u4e48\uff0c\u5982\u679c\u80fd\u786e\u8ba4\u8be5\u7c7b\u8d85\u5bfc\u6750\u6599\u4e2d\u7684\u5173\u952e\u4f5c\u7528\uff0c\u5c06\u5177\u6709\u91cd\u8981\u7684\u79d1\u5b66\u610f\u4e49\u3002<\/p>\n

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

\u00a0 \u8fd1\u65e5\uff0c\u7535\u5b50\u79d1\u6280\u5927\u5b66\u4e54\u6881\u6559\u6388\uff0c\u82f1\u56fd\u201c\u94bb\u77f3\u201d\u5149\u6e90\u5468\u514b\u747e\u535a\u58eb\uff0c\u5317\u4eac\u8ba1\u7b97\u79d1\u5b66\u7814\u7a76\u4e2d\u5fc3\u9ec4\u5175\u7814\u7a76\u5458\u4ee5\u53ca\u6210\u90fd\u5927\u5b66\u738b\u6e05\u8fdc\u6559\u6388\u7b49\u4eba\u901a\u8fc7SIMS\u8bc1\u5b9e\u5927\u91cfH\u4ee5Nd0.8<\/sub>Sr0.2<\/sub>NiO2<\/sub>Hx<\/sub> (x<\/em>\u22450.2-0.5)\u5f62\u6210\u5b58\u5728\u4e8e\u62d3\u6251\u8fd8\u539f\u6cd5\u5236\u5907\u7684\u5916\u5ef6\u65e0\u9650\u5c42\u954d\u9178\u76d0\u4e2d\u3002\u53e6\u5916\u6e05\u695a\u5730\u8868\u660eH\u5728\u8d85\u5bfc\u6027\u4e2d\u7684\u5173\u952e\u4f5c\u7528\u3002\u76f8\u5173\u7684\u7814\u7a76\u6210\u679c\u4ee5\u201cCritical role of hydrogen for superconductivity in nickelates<\/em><\/strong>\u201d\u4e3a\u9898\u53d1\u8868\u5728\u77e5\u540d\u671f\u520aNature<\/em><\/strong>\u4e0a\u3002<\/span><\/p>\n

\"\"\u4e09\u3001\u3010\u6838\u5fc3\u521b\u65b0\u70b9\u3011<\/strong><\/span><\/p>\n

\u00a0 1\u3001\u901a\u8fc7\u8d85\u7075\u654f\u4e8c\u6b21\u79bb\u5b50\u8d28\u8c31<\/strong>(SIMS)<\/strong>\u8bc1\u5b9e\u65e0\u9650\u5c42\u954d\u9178\u76d0\u4e2d\u5b58\u5728\u5927\u91cf\u7684<\/strong>H<\/strong>\uff0c\u5f62\u6210<\/strong>Nd8<\/sub>Sr0.2<\/sub>NiO2<\/sub>Hx<\/sub> (x<\/strong>\u2245<\/strong>0.2-0.5)<\/strong>\u3002<\/strong>\u57280.22\u2264x\u22640.28\u7684\u5f88\u7a84\u7684<\/strong>H<\/strong>\u63ba\u6742\u533a\u95f4\u5185\uff0c\u7535\u963b\u7387\u4e3a\u96f6\u3002<\/strong><\/p>\n

\u00a0 2<\/strong>\u3001<\/strong>DFT<\/strong>\u8ba1\u7b97\u8868\u660e\uff0c\u5e26\u7535\u8d1f\u6027<\/strong>H–<\/sup><\/strong>\u5360\u636e\u9876\u7aef\u6c27\u4f4d\u70b9\uff0c\u6e6e\u706d\u4e86<\/strong>IIS<\/strong>\u8f68\u9053\uff0c\u51cf\u5c11\u4e86<\/strong>IIS \u2013 Ni 3d<\/strong>\u8f68\u9053\u6742\u5316\u3002\u8fd9\u5bfc\u81f4<\/strong>H<\/strong>\u63ba\u6742<\/strong>Nd0.8<\/sub>Sr0.2<\/sub>NiO2<\/sub>Hx<\/sub>\u7684\u7535\u5b50\u7ed3\u6784\u66f4\u52a0\u4e8c\u7ef4\u5316\uff0c\u8fd9\u53ef\u80fd\u4e0e\u89c2\u6d4b\u5230\u7684\u8d85\u5bfc\u6027\u6709\u5173\u3002<\/strong><\/p>\n

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

\"\"<\/p>\n

\u56fe<\/strong>1<\/strong>\u00a0 \u751f\u957f\u548c\u65e0\u9650\u5c42\u954d\u9178\u76d0\u7684\u6c22\u68c0\u6d4b\u3002(a)\u539f\u59cbNd0.8<\/sub>Sr0.2<\/sub>NiO3<\/sub>\u548cNd0.8<\/sub>Sr0.2<\/sub>NiO2<\/sub>\u8584\u819c\u5728\u4e0d\u540c\u8fd8\u539f\u65f6\u95f4\u4e0b\u7684 SIMS \u6df1\u5ea6\u5256\u9762\uff0c\u4ee5\u53ca\u4f7f\u7528\u4f18\u5316\u7684\u62d3\u6251\u8fd8\u539f\u6761\u4ef6 300 \u00b0C \u548c 120 \u5206\u949f\u4e0b\u53c2\u8003\u8fd8\u539f SrTiO3<\/sub>\u5355\u6676\uff08\u7ea2\u8272\u5b9e\u7ebf\uff09\u3002(b) \u5728120\u5206\u949f\u8fd8\u539f\u7684\u8d85\u5bfc\u6837\u54c1\u4e2dH\u3001Nd\u3001Sr\u3001Ni\u3001O\u548cTi\u5143\u7d20\u7684\u4e09\u7ef4\u6620\u5c04\u3002\uff08c\uff09\u968f\u8fd8\u539f\u65f6\u95f4\u53d8\u5316\u7684\u5b9a\u91cf\u7684\u6c22\u6d53\u5ea6 \u00a9 2023 Springer Nature Limited<\/p>\n

\"\"<\/p>\n

\u56fe<\/strong>2<\/strong>\u00a0 Nd0.8<\/sub>Sr0.2<\/sub>NiO2<\/sub>Hx<\/sub>\u7684\u8f93\u8fd0\u7279\u6027\u548cH\u63ba\u6742\u76f8\u56fe\u3002\uff08a\uff09\u5bf9\u5177\u6709\u4e0d\u540c H \u6d53\u5ea6\u7684\u6837\u54c1\u6d4b\u91cf\u7684\u6e29\u5ea6\u5173\u8054\u7535\u963b\u7387\uff08x\u4ece0.19\u52300.44\uff09\u3002(b) Nd0.8<\/sub>Sr0.2<\/sub>NiO2<\/sub>Hx<\/sub>\u76f8\u56fe\u3002(c) \u5bf9\u5e94\u4e8ea\u7684Nd0.8<\/sub>Sr0.2<\/sub>NiO2<\/sub>Hx<\/sub>\u8584\u819c\u7684R<\/em>H<\/sub>\u7684\u53d8\u6e29\u7279\u6027\u3002(d)\u00a0 T\u00a0= 300 \uff0c15 K\u6761\u4ef6\u4e0b\uff0c\u968f\u6c22\u6d53\u5ea6\u6539\u53d8\u7684R<\/em>H<\/sub>\u00a0 \u00a9 2023 Springer Nature Limited<\/p>\n

\"\"<\/p>\n

\u56fe<\/strong>3<\/strong> XAS \u548c RIXS \u8868\u5f81 (a) Nd0.8<\/sub>Sr0.2<\/sub>NiO2<\/sub>Hx<\/sub>\u00a0x\u00a0=0.19\u30010.26\u548c0.33\u4ee5\u53ca\u53c2\u6bd4 NdNiO3<\/sub>\u8584\u819c\u7684O\u00a0K-edge\u9644\u8fd1\u7684\u8868\u9762\u654f\u611f\u603b\u7535\u5b50\u4ea7\u7387 XAS \u5149\u8c31\u3002\uff08b\uff09\u5bf9\u5e94\u4e8ea \u7684Ni\u00a0L<\/em>3<\/sub>-edge\u9644\u8fd1\u7684\u4f53\u79ef\u654f\u611f\u8367\u5149\u4ea7\u7387 XAS \u5149\u8c31\u3002(c)\u00a0\u4e0d\u540c\u5165\u5c04\u89d2\u03b8\u4e0b\u7684\u63ba\u6742\u6709\u5173\u7684 RIXS \u5149\u8c31 (d\u00a0\u2013\u00a0f) Nd0.8<\/sub>Sr0.2<\/sub>NiO2<\/sub>Hx<\/sub>\u00a0\u7684 RIXS \u5f3a\u5ea6\u56fe\uff0c\u5728T\u00a0\u2009= 20 K\u65f6\u6d4b\u91cf\uff0c\u00a0x\u00a0\u2009= 0.19 (\u00a0d\u00a0)\u30010.26 (\u00a0e\u00a0) \u548c 0.33 (\u00a0f\u00a0) \u00a0\u00a9 2023 Springer Nature Limited<\/p>\n

\"\"<\/p>\n

\u56fe<\/strong>4 <\/strong>Nd0.8<\/sub>Sr0.2<\/sub>NiO2<\/sub>Hx<\/sub>\u7684\u7535\u5b50\u7ed3\u6784 \uff08a\u2013c\uff09Nd0.8<\/sub>Sr0.2<\/sub>NiO2<\/sub>Hx<\/sub>\u00a0(\u00a0x\u00a0\u2009= 0 (\u00a0a\u00a0), 0.25 (\u00a0b\u00a0) \u548c 0.5 (\u00a0c\u00a0))\u7684\u5e26\u7ed3\u6784\u548c DOS \u8f68\u9053\u6295\u5f71\u3002\uff08d\uff09\u6676\u683c\u5185\u90e8\u8df3\u8dc3(t<\/em>1<\/sub>(Ni3dx<\/sub>2<\/sup>\u2212y<\/sub>2<\/sup>\u2192O 2p)\uff0ct<\/em>2<\/sub> (O 2p\u2192IIS)\uff0ct<\/em>4 <\/sub>(Ni3dz<\/sub>2<\/sup>\u2192Nd5dz<\/sub>2<\/sup>))\u548c\u6676\u683c\u95f4\u8df3\u8dc3(t<\/em>3<\/sub> (Ni3dx<\/sub>2<\/sup>\u2212y<\/sub>2<\/sup>\u2192IIS))\uff0c\u6ca1\u6709(w\/ O\uff0c\u5de6)\u548c(w\uff0c\u53f3)\u5728Nd0.8<\/sub>Sr0.2<\/sub>NiO2<\/sub>Hx<\/sub>\u4e2d\u63d2\u5165H\u3002\uff08e\uff093d x<\/sub>2<\/sup>\u2212y<\/sub>2<\/sup>-3d z<\/sub>2<\/sup>\u8f68\u9053\u6781\u5316\u4f5c\u4e3aH\u6d53\u5ea6\u7684\u51fd\u6570\u3002\uff08f\uff09\u5e73\u57473d x<\/sub>2<\/sup>\u2212y<\/sub>2<\/sup>-3d z<\/sub>2<\/sup>\u8f68\u9053\u6df7\u5408\u7269\u548c\u5e73\u5747\u8df3\u8dc3\u4e4b\u95f4\u7684\u7ade\u4e89\u793a\u610f\u56fe\u3002\u00a9 2023 Springer Nature Limited<\/p>\n

 <\/p>\n

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

\u00a0 \u7efc\u4e0a\u6240\u8ff0\uff0c\u4f5c\u8005\u901a\u8fc7SIMS\u6280\u672f\u8bc1\u5b9eH\u5b58\u5728\u4e8e\u62d3\u6251\u8fd8\u539f\u5236\u5907\u7684\u5916\u5ef6\u65e0\u9650\u5c42\u954d\u9178\u76d0\u8584\u819c\u4e2d\uff0c\u5e76\u5f3a\u8c03\u4e86H\u662f\u5916\u5ef6\u65e0\u9650\u5c42\u954d\u9178\u76d0\u8d85\u5bfc\u6027\u7684\u91cd\u8981\u7ec4\u6210\u6210\u5206\u3002\u8fd9\u9879\u7814\u7a76\u867d\u7136\u76ee\u524d\u4ec5\u5bf9\u4e8e\u65e0\u9650\u5c42\u954d\u9178\u76d0\u8d85\u5bfc\u6709\u4e00\u5b9a\u7684\u610f\u4e49\uff0c\u4f46\u4e5f\u4e3a\u5176\u4ed6\u8d85\u5bfc\u6027\u6750\u6599\u63d0\u51fa\u4e86\u65b0\u7684\u7814\u7a76\u65b9\u5411\u548c\u7b56\u7565\u3002\u4f5c\u8005\u4e5f\u63d0\u51fa\u4e00\u4e2a\u65b0\u7684\u95ee\u9898\uff0c\u5728\u6ca1\u6709H\u6216\u53ea\u6709H\u63ba\u6742\u7684\u60c5\u51b5\u4e0b\uff0c\u8fd9\u4e9b\u6c27\u5316\u954d\u5316\u5408\u7269\u4ecd\u7136\u53ef\u4ee5\u5b9e\u73b0\u8d85\u5bfc\u6027\u5417\uff1f\u8fd9\u4e2a\u95ee\u9898\u503c\u5f97\u7814\u7a76\u5b66\u8005\u4eec\u7684\u6ce8\u610f\u3002<\/strong><\/p>\n

\u00a0<\/strong><\/p>\n

\u539f\u6587\u8be6\u60c5\uff1a<\/strong>https:\/\/doi.org\/10.1038\/s41586-022-05657-2<\/p>\n

\u672c\u6587\u7531K . L\u64b0\u7a3f\u3002<\/p>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

\u4e00\u3001\u3010\u5bfc\u8bfb\u3011 \u00a0 2019\u5e74\uff0c\u674e\u4e39\u67ab\u535a\u58eb\u53d1\u8868\u4e86\u4e00\u9879\u91cd\u8981\u6210\u679c\uff0c\u5373\u9996\u6b21\u53d1\u73b0\u4e86\u65e0\u9650\u5c42\u7ed3\u6784\u7684\u954d\u6c27\u5316\u7269\u8d85\u5bfc\u6750\u6599Nd0.8Sr0.2NiO2\u8584\u819c\u5177\u6709\u975e\u5e38\u89c4\u7684\u8d85\u5bfc\u6027\uff0c\u5176\u6700\u5927\u8d85…<\/p>\n","protected":false},"author":48789,"featured_media":248501,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[215],"tags":[30],"class_list":["post-248500","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-jiedu","tag-chaodao"],"_links":{"self":[{"href":"\/\/m.iemloyee.com\/index.php?rest_route=\/wp\/v2\/posts\/248500"}],"collection":[{"href":"\/\/m.iemloyee.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"\/\/m.iemloyee.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"\/\/m.iemloyee.com\/index.php?rest_route=\/wp\/v2\/users\/48789"}],"replies":[{"embeddable":true,"href":"\/\/m.iemloyee.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=248500"}],"version-history":[{"count":2,"href":"\/\/m.iemloyee.com\/index.php?rest_route=\/wp\/v2\/posts\/248500\/revisions"}],"predecessor-version":[{"id":248809,"href":"\/\/m.iemloyee.com\/index.php?rest_route=\/wp\/v2\/posts\/248500\/revisions\/248809"}],"wp:featuredmedia":[{"embeddable":true,"href":"\/\/m.iemloyee.com\/index.php?rest_route=\/wp\/v2\/media\/248501"}],"wp:attachment":[{"href":"\/\/m.iemloyee.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=248500"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"\/\/m.iemloyee.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=248500"},{"taxonomy":"post_tag","embeddable":true,"href":"\/\/m.iemloyee.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=248500"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}