{"id":266779,"date":"2025-05-13T06:14:56","date_gmt":"2025-05-12T22:14:56","guid":{"rendered":"http:\/\/www.cailiaoniu.com\/?p=266779"},"modified":"2025-05-12T21:15:27","modified_gmt":"2025-05-12T13:15:27","slug":"science%ef%bc%9a%e5%bd%93%e8%b4%b9%e7%b1%b3%e9%9d%a2%e5%b5%8c%e5%a5%97%e9%82%82%e9%80%85%e6%96%af%e6%a0%bc%e6%98%8e%e5%ad%90","status":"publish","type":"post","link":"http:\/\/www.cailiaoniu.com\/?p=266779","title":{"rendered":"Science\uff1a\u5f53\u8d39\u7c73\u9762\u5d4c\u5957\u201c\u9082\u9005\u201d\u65af\u683c\u660e\u5b50"},"content":{"rendered":"

\u4e00\u3001\u3010\u79d1\u5b66\u80cc\u666f\u3011<\/strong>\u00a0 <\/strong><\/p>\n

\u78c1\u65af\u683c\u660e\u5b50\u662f\u4e00\u79cd\u5177\u6709\u7eb3\u7c73\u7ea7\u87ba\u65cb\u81ea\u65cb\u7ec7\u6784\u7684\u51c6\u7c92\u5b50\uff0c\u56e0\u5176\u72ec\u7279\u7684\u62d3\u6251\u6027\u8d28\u548c\u5728\u9ad8\u5bc6\u5ea6\u81ea\u65cb\u7535\u5b50\u5668\u4ef6\uff08\u5982\u6570\u636e\u5b58\u50a8\u5355\u5143\uff09\u4e2d\u7684\u5e94\u7528\u6f5c\u529b\uff0c\u6210\u4e3a\u51dd\u805a\u6001\u7269\u7406\u548c\u6750\u6599\u79d1\u5b66\u7684\u524d\u6cbf\u70ed\u70b9\u3002\u8fc7\u53bb\u5341\u5e74\u95f4\uff0c\u5927\u591a\u6570\u65af\u683c\u660e\u5b50\u7814\u7a76\u96c6\u4e2d\u4e8e\u975e\u4e2d\u5fc3\u5bf9\u79f0\u6750\u6599\uff0c\u5176\u5f62\u6210\u673a\u5236\u53ef\u7531Dzyaloshinskii-Moriya\uff08DM\uff09\u76f8\u4e92\u4f5c\u7528\u5408\u7406\u89e3\u91ca\u3002\u7136\u800c\uff0c\u4e2d\u5fc3\u5bf9\u79f0\u6750\u6599\u4e2d\u65af\u683c\u660e\u5b50\u7684\u8d77\u6e90\u4e00\u76f4\u662f\u672a\u89e3\u4e4b\u8c1c\u3002\u5c3d\u7ba1\u8fd9\u7c7b\u6750\u6599\u80fd\u5f62\u6210\u5c3a\u5bf8\u66f4\u5c0f\uff08<4 nm\uff0c\u5982\u7ea61.9 nm\u7684GdRu2<\/sub>Si2<\/sub>\uff09\u3001\u7535\u52a8\u529b\u5b66\u54cd\u5e94\u66f4\u7a33\u5065\u7684\u65af\u683c\u660e\u5b50\uff0c\u4f46\u5176\u81ea\u65cb\u7ec7\u6784\u7684\u9a71\u52a8\u673a\u5236\uff08\u5982\u51e0\u4f55\u963b\u632b\u3001\u8f68\u9053\u76f8\u4e92\u4f5c\u7528\u6216Ruderman-Kittel-Kasuya-Yosida\uff08RKKY\uff09\u76f8\u4e92\u4f5c\u7528\uff09\u4ecd\u5b58\u4e89\u8bae\u3002<\/p>\n

\u7406\u8bba\u4e0a\uff0c\u4e2d\u5fc3\u5bf9\u79f0\u65af\u683c\u660e\u5b50\u7684\u5f62\u6210\u53ef\u80fd\u4f9d\u8d56\u4e8e\u8d39\u7c73\u9762\uff08FS\uff09\u5d4c\u5957\u8bf1\u5bfc\u7684\u81ea\u65cb\u8c03\u5236\uff1a\u5f53\u8d39\u7c73\u9762\u7684\u4e0d\u540c\u90e8\u5206\u901a\u8fc7\u7279\u5b9a\u6ce2\u77e2\uff08q\u77e2\u91cf\uff09\u5339\u914d\u65f6\uff0c\u7535\u5b50\u95f4\u7684\u76f8\u4e92\u4f5c\u7528\u53ef\u5f15\u53d1\u87ba\u65cb\u81ea\u65cb\u5e8f\u3002\u5b9e\u9a8c\u4e0a\uff0c\u89d2\u5206\u8fa8\u5149\u7535\u5b50\u80fd\u8c31\uff08ARPES\uff09\u662f\u76f4\u63a5\u89c2\u6d4b\u7535\u5b50\u7ed3\u6784\u7684\u5173\u952e\u6280\u672f\uff0c\u4f46\u53d7\u9650\u4e8e\u6837\u54c1\u8868\u9762\u7ec8\u7aef\u6548\u5e94\u548c\u78c1\u7574\u5e72\u6270\uff0c\u6b64\u524d\u5bf9\u4e2d\u5fc3\u5bf9\u79f0\u65af\u683c\u660e\u5b50\u6750\u6599\u7684\u7535\u5b50\u7ed3\u6784\u89e3\u6790\u8fdb\u5c55\u7f13\u6162\u3002GdRu2<\/sub>Si2<\/sub>\u4f5c\u4e3a\u5f53\u524d\u6700\u5c0f\u65af\u683c\u660e\u5b50\u7684\u5bbf\u4e3b\u6750\u6599\uff0c\u5176\u57fa\u6001\u7535\u5b50\u7ed3\u6784\u662f\u5426\u5b58\u5728\u4e0e\u78c1\u8c03\u5236q\u77e2\u91cf\u5bf9\u5e94\u7684\u8d39\u7c73\u9762\u5d4c\u5957\u3001\u4ee5\u53ca\u5d4c\u5957\u5982\u4f55\u8bf1\u53d1\u8d5d\u80fd\u9699\u548c\u8d39\u7c73\u5f27\u7b49\u53cd\u5e38\u7535\u5b50\u6001\uff0c\u6210\u4e3a\u63ed\u793a\u4e2d\u5fc3\u5bf9\u79f0\u65af\u683c\u660e\u5b50\u5f62\u6210\u673a\u5236\u7684\u6838\u5fc3\u79d1\u5b66\u95ee\u9898\u3002<\/p>\n

\u4e8c\u3001\u3010\u521b\u65b0\u6210\u679c\u3011<\/strong><\/p>\n

\u8fd1\u65e5\uff0c\u4e1c\u4eac\u5927\u5b66\u7814\u7a76\u4eba\u5458\u901a\u8fc7\u89d2\u5206\u8fa8\u5149\u7535\u5b50\u80fd\u8c31\uff08ARPES\uff09\u9009\u62e9\u6027\u6d4b\u91cf\u78c1\u7574\uff0c\u63ed\u793a\u4e86\u4e2d\u5fc3\u5bf9\u79f0\u6750\u6599 GdRu2<\/sub>Si2<\/sub>\u7684\u672c\u5f81\u7535\u5b50\u7ed3\u6784\u3002\u4f5c\u8005\u53d1\u73b0\u4e86\u7a33\u5065\u7684\u8d39\u7c73\u9762\uff08FS\uff09\u5d4c\u5957\uff0c\u8fd9\u4e0e\u5148\u524d\u5171\u632f X \u5c04\u7ebf\u6563\u5c04\u6d4b\u91cf\u68c0\u6d4b\u5230\u7684\u78c1\u8c03\u5236\u77e2\u91cf\u4e00\u81f4\u3002\u8d5d\u80fd\u9699\u5728\u5d4c\u5957\u7684\u8d39\u7c73\u9762\u90e8\u5206\u6253\u5f00\uff0c\u4e14\u4e0d\u540c\u78c1\u7574\u4e2d\u7684\u8d5d\u80fd\u9699\u5b58\u5728\u5dee\u5f02\u3002\u53cd\u5e38\u8d5d\u80fd\u9699\u4f7f\u8d39\u7c73\u9762\u65ad\u5f00\uff0c\u751f\u6210\u5177\u6709\u4e8c\u91cd\u5bf9\u79f0\u6027\u7684\u8d39\u7c73\u5f27\u3002\u8fd9\u4e9b\u7ed3\u679c\u8868\u660e\uff0cRKKY\u76f8\u4e92\u4f5c\u7528\u5728\u9a71\u52a8GdRu2<\/sub>Si2<\/sub>\u4e2d\u5f62\u6210\u65af\u683c\u660e\u5b50\u6240\u9700\u7684\u87ba\u65cb\u81ea\u65cb\u8c03\u5236\u4e2d\u8d77\u51b3\u5b9a\u6027\u4f5c\u7528\u3002\u6b64\u5916\uff0c\u4f5c\u8005\u901a\u8fc7\u78c1\u573a\u548c\u6e29\u5ea6\u5faa\u73af\u64cd\u7eb5\u78c1\u7574\uff0c\u5c55\u793a\u4e86GdRu2<\/sub>Si2<\/sub>\u4e2d\u78c1\u6027\u7684\u7075\u6d3b\u6027\uff0c\u4e3a\u672a\u6765\u6570\u636e\u5b58\u50a8\u548c\u5904\u7406\u8bbe\u5907\u63d0\u4f9b\u4e86\u6f5c\u5728\u5e94\u7528\u3002<\/p>\n

\"\"<\/p>\n

\u56fe<\/strong>1<\/strong> GdRu2<\/sub>Si2<\/sub><\/strong>\u7684\u8868\u9762\u7ec8\u7aef\u53ca\u5176\u7535\u5b50\u7ed3\u6784\u3002\uff08<\/strong>A<\/strong>\uff09<\/strong>GdRu2<\/sub>Si2<\/sub><\/strong>\u7684\u6676\u4f53\u7ed3\u6784\u3002\uff08<\/strong>B<\/strong>\uff09\u901a\u8fc7\u6bcf<\/strong> 20 \u03bcm <\/strong>\u626b\u63cf\u5149\u675f\u6591\u83b7\u5f97\u7684\u89e3\u7406\u9762\u8d39\u7c73\u80fd\uff08<\/strong>EF<\/strong>\uff09<\/strong>\u9644\u8fd1\u7684\u5149\u53d1\u5c04\u5f3a\u5ea6\u7a7a\u95f4\u6620\u5c04\u3002\uff08<\/strong>C<\/strong>\uff09\u5728\uff08<\/strong>B<\/strong>\uff09\u4e2d\u7eff\u8272\u548c\u7d2b\u8272\u5706\u5708\u6807\u8bb0\u7684\u4e24\u4e2a\u6591\u70b9\u5904\u8fdb\u884c\u7684\u82af\u80fd\u7ea7\u6d4b\u91cf\u3002\uff08<\/strong>D <\/strong>\u548c<\/strong> E<\/strong>\uff09<\/strong>Gd<\/strong>\uff08<\/strong>D<\/strong>\uff09\u548c<\/strong> Si<\/strong>\uff08<\/strong>E<\/strong>\uff09\u5728<\/strong> 10 K <\/strong>\u4e0b\u7528<\/strong> 148 eV <\/strong>\u5149\u5b50\uff08\u5bf9\u5e94<\/strong> \u0393 <\/strong>\u70b9\u5904<\/strong> k_z=20\u03c0\/c<\/strong>\uff09\u6d4b\u91cf\u7684\u8d39\u7c73\u9762\u6620\u5c04\u3002\uff08<\/strong>F <\/strong>\u548c<\/strong> G<\/strong>\uff09\u5206\u522b\u4e3a<\/strong> Gd<\/strong>\u548c<\/strong> Si<\/strong>\u6cbf\u7a7f\u8fc7<\/strong> \u0393 <\/strong>\u70b9\u7684\u52a8\u91cf\u5207\u5272\uff08<\/strong>D <\/strong>\u548c<\/strong> E <\/strong>\u4e2d\u7684\u7eff\u8272\u548c\u7d2b\u8272\u7bad\u5934\uff09\u6d4b\u91cf\u7684\u80fd\u5e26\u8272\u6563\u56fe\u3002\uff08<\/strong>H<\/strong>\uff09\u8ba1\u7b97\u7684\u4f53\u6001\u8d39\u7c73\u9762\u3002\uff08<\/strong>I<\/strong>\uff09<\/strong>D <\/strong>\u548c<\/strong> E <\/strong>\u4e2d\u9ed1\u8272\u865a\u7ebf\u5904\u7684\u52a8\u91cf\u5206\u5e03\u66f2\u7ebf\uff08<\/strong>MDC<\/strong>\uff09\u3002<\/strong>\u00a9 2025 Science<\/strong><\/p>\n

\u4f5c\u8005\u901a\u8fc7\u89d2\u5206\u8fa8\u5149\u7535\u5b50\u80fd\u8c31\uff08ARPES\uff09\u5206\u6790\u4e86GdRu2<\/sub>Si2<\/sub>\u89e3\u7406\u9762\u7684\u4e24\u79cd\u7ec8\u7aef\uff08Gd \u548c Si\uff09\uff0c\u53d1\u73b0\u4e0d\u540c\u7ec8\u7aef\u7684\u8d39\u7c73\u9762\uff08FS\uff09\u548c\u80fd\u5e26\u7ed3\u6784\u5b58\u5728\u663e\u8457\u5dee\u5f02\uff1aGd \u7ec8\u7aef\u5728 \u0393 \u70b9\u9644\u8fd1\u663e\u793a\u9ad8\u5f3a\u5ea6\u4fe1\u53f7\uff0c\u800c Si \u7ec8\u7aef\u5448\u73b0 \u201c\u98ce\u8f66\u72b6\u201d \u8d39\u7c73\u9762\u53ca\u5706\u5f62\u5b50\u5e26\u3002\u901a\u8fc7\u5bf9\u6bd4\u4e24\u79cd\u7ec8\u7aef\u7684\u5171\u6027\u7279\u5f81\uff0c\u63d0\u53d6\u51fa\u5e03\u91cc\u6e0a\u533a\u89d2\u843d\u7684\u5e73\u884c\u8d39\u7c73\u9762\u4f5c\u4e3a\u4f53\u76f8\u672c\u5f81\u7ed3\u6784\u3002\u5b9e\u9a8c\u7ed3\u5408\u82af\u80fd\u7ea7\u5149\u8c31\uff08\u5982 Si 2p \u548c Gd 4f \u5cf0\u5f3a\u5ea6\u5bf9\u6bd4\uff09\u548c\u5bc6\u5ea6\u6cdb\u51fd\u7406\u8bba\uff08DFT\uff09\u8ba1\u7b97\uff0c\u9a8c\u8bc1\u4e86\u4f53\u76f8\u8d39\u7c73\u9762\u7684\u5b58\u5728\uff0c\u6392\u9664\u4e86\u8868\u9762\u7ec8\u7aef\u7684\u5e72\u6270\u3002<\/p>\n

\"\"<\/p>\n

\u56fe<\/strong>2<\/strong>\u4e09\u7ef4\u52a8\u91cf\u7a7a\u95f4\u4e2d\u7684\u8d39\u7c73\u9762\u5d4c\u5957\u3002\uff08<\/strong>A<\/strong>\uff09<\/strong>Gd <\/strong>\u7ec8\u7aef\u5728<\/strong> 10 K <\/strong>\u4e0b\u7528<\/strong> 94 eV <\/strong>\u5149\u5b50\uff08\u5bf9\u5e94<\/strong> kz<\/sub><\/strong>=0<\/strong>\uff09\u6d4b\u91cf\u7684\u9762\u5185\u8d39\u7c73\u9762\u6620\u5c04\u3002\uff08<\/strong>B<\/strong>\uff09<\/strong>kz<\/sub> =0<\/strong>\u5904\u7684\u8ba1\u7b97\u8d39\u7c73\u9762\u3002<\/strong>A <\/strong>\u548c<\/strong> B <\/strong>\u4e2d\u7684\u767d\u8272\u548c\u9ed1\u8272\u865a\u7ebf\u5206\u522b\u8868\u793a\u5e03\u91cc\u6e0a\u533a\u3002\u7eff\u8272\u548c\u84dd\u8272\u7bad\u5934\u8868\u793a\u5e73\u884c\u4e8e<\/strong>kx<\/sub><\/strong>\u548c<\/strong>ky<\/sub><\/strong>\u65b9\u5411\u7684\u5d4c\u5957\u6ce2\u77e2\u3002\uff08<\/strong>C<\/strong>\uff09\u8fde\u63a5\u5e03\u91cc\u6e0a\u533a\u89d2\u843d\u7684\u52a8\u91cf\u5207\u5272\u7684\u80fd\u5e26\u8272\u6563\u56fe\uff08<\/strong>A <\/strong>\u4e2d\u7684\u9ed1\u8272\u7bad\u5934\uff09\u3002\u9876\u90e8\uff1a\u8d39\u7c73\u80fd\u7ea7\u5904\u7684\u76f8\u5e94<\/strong> MDC<\/strong>\u3002\u53e0\u52a0\u4e86<\/strong> DFT <\/strong>\u4f53\u5e26\u8ba1\u7b97\uff08\u7ea2\u7ebf\uff09\u3002\uff08<\/strong>D<\/strong>\uff09<\/strong>A <\/strong>\u4e2d\u7ea2\u8272\u77e9\u5f62\u533a\u57df\u7684\u8d39\u7c73\u9762\u653e\u5927\u56fe\u3002\uff08<\/strong>E<\/strong>\uff09<\/strong>ARPES <\/strong>\u4f30\u7b97\u7684\u6cbf<\/strong>kx<\/sub><\/strong>\u65b9\u5411\u7684\u5d4c\u5957\u6ce2\u77e2\u957f\u5ea6\uff08\u7eff\u5708\uff09\u548c\u8ba1\u7b97\u503c\uff08\u7ea2\u7ebf\uff09\u968f<\/strong>ky<\/sub><\/strong>\u4f4d\u7f6e\u7684\u53d8\u5316\u3002<\/strong>ARPES <\/strong>\u7ed3\u679c\u7684<\/strong>ky<\/sub><\/strong>\u4f4d\u7f6e\u7531\u8272\u6563\u56fe\u4e2d\u7684\u7eff\u70b9\u6807\u8bb0\u3002<\/strong>RXS <\/strong>\u7814\u7a76\u62a5\u544a\u7684\u78c1\u8c03\u5236<\/strong> q <\/strong>\u77e2\u91cf\u957f\u5ea6\u4e5f\u53e0\u52a0\uff08\u9ed1\u7ebf\uff09\u3002\uff08<\/strong>F <\/strong>\u548c<\/strong> G<\/strong>\uff09\u5206\u522b\u4e3a\u8ba1\u7b97\u548c<\/strong> ARPES <\/strong>\u663e\u793a\u7684\u5d4c\u5957\u9762\u5185\u8d39\u7c73\u9762\u968f<\/strong>kz<\/sub><\/strong>\uff08<\/strong>0 <\/strong>\u5230<\/strong> – 2\u03c0\/c<\/strong>\uff09\u7684\u6f14\u5316\u3002\u901a\u8fc7\u6539\u53d8\u5149\u5b50\u80fd\u91cf\u4ece<\/strong> 94 eV <\/strong>\u5230<\/strong> 67 eV<\/strong>\uff0c<\/strong>kz<\/sub><\/strong>\u503c\u4ece<\/strong> 0 <\/strong>\u53d8\u4e3a<\/strong> – 2\u03c0\/c<\/strong>\u3002\u6ce8\u610f\uff0c\u7531\u4e8e<\/strong> GdRu2<\/sub>Si2<\/sub><\/strong>\u5177\u6709\u4f53\u5fc3\u56db\u65b9\u7ed3\u6784\uff0c\u6cbf<\/strong>kz<\/sub><\/strong>\u65b9\u5411\u7684\u5e03\u91cc\u6e0a\u533a\u5468\u671f\u4e3a<\/strong> 4\u03c0\/c<\/strong>\u3002\uff08<\/strong>H<\/strong>\uff09\u5728\u8986\u76d6<\/strong> kz<\/sub><\/strong>\u4ece<\/strong> 0 <\/strong>\u5230<\/strong> – 2\u03c0\/c <\/strong>\u7684\u4e0d\u540c\u5149\u5b50\u80fd\u91cf\u4e0b\uff0c\u6cbf<\/strong> G <\/strong>\u4e2d\u767d\u8272\u865a\u7ebf\u7684\u5d4c\u5957\u8d39\u7c73\u9762\u7684<\/strong> MDC<\/strong>\u3002\u7eff\u8272\u7bad\u5934\u901a\u8fc7\u5c06\u5149\u5b50\u80fd\u91cf\u4ece<\/strong> 94 eV <\/strong>\u626b\u81f3<\/strong> 67 eV<\/strong>\uff0c\u8fde\u63a5<\/strong> 16\u03c0\/c<\/strong>\uff08<\/strong>=0<\/strong>\uff09\u5230<\/strong> 14\u03c0\/c<\/strong>\uff08<\/strong>=-2\u03c0\/c<\/strong>\uff09\u3002\uff08<\/strong>I<\/strong>\uff09\u6cbf\u5e03\u91cc\u6e0a\u533a\u89d2\u843d\u7684<\/strong>kx<\/sub><\/strong>\u65b9\u5411\u5d4c\u5957\u8d39\u7c73\u9762\u7684<\/strong>kz<\/sub><\/strong>\u4f9d\u8d56\u6027\u3002\u7eff\u7bad\u5934\u4e0e<\/strong> F <\/strong>\u4e2d\u7684\u76f8\u540c\u3002\uff08<\/strong>J<\/strong>\uff09\u540c<\/strong> E<\/strong>\uff0c\u4f46\u4e3a\u6cbf<\/strong>kz<\/sub><\/strong>\u4f4d\u7f6e\u7684\u8d39\u7c73\u9762\u5d4c\u5957\u3002\uff08<\/strong>K<\/strong>\uff09\u4ece\u4e09\u7ef4<\/strong> DFT <\/strong>\u4f53\u5e26\u7ed3\u6784\u4f30\u7b97\u7684<\/strong> Gd <\/strong>\u8f68\u9053\u5206\u91cf\u7684\u6797\u54c8\u5fb7\u51fd\u6570<\/strong> \u03c7<\/strong>\u2080<\/sub><\/strong>(Gd)<\/strong>\u3002<\/strong>\u00a9 2025 Science<\/strong><\/p>\n

\u4f5c\u8005\u63ed\u793a\u4e86 GdRu2<\/sub>Si2<\/sub>\u4e2d\u7a33\u5065\u7684\u8d39\u7c73\u9762\u5d4c\u5957\u73b0\u8c61\uff1a\u9762\u5185\uff08kx<\/sub>\u3001ky <\/sub>\u65b9\u5411\uff09\u548c\u6cbfkz<\/sub>\u65b9\u5411\u7684\u5d4c\u5957\u77e2\u91cf\u5747\u4e0e\u5171\u632f X \u5c04\u7ebf\u6563\u5c04\uff08RXS\uff09\u6d4b\u5f97\u7684\u78c1\u8c03\u5236 q \u77e2\u91cf\uff08~0.33 \u00c5-1<\/sup>\u9ad8\u5ea6\u543b\u5408\u3002ARPES \u5b9e\u6d4b\u7684\u5d4c\u5957\u6ce2\u77e2\u4e0e DFT \u8ba1\u7b97\u3001RXS \u6570\u636e\u5b8c\u7f8e\u5339\u914d\uff0c\u4e14\u6797\u54c8\u5fb7\u51fd\u6570\u663e\u793a Gd \u8f68\u9053\u5206\u91cf\u5728\u5d4c\u5957\u77e2\u91cf\u5904\u51fa\u73b0\u5cf0\u503c\uff0c\u652f\u6301RKKY \u76f8\u4e92\u4f5c\u7528\u9a71\u52a8\u78c1\u8026\u5408\u7684\u673a\u5236\u3002\u4e09\u7ef4\u52a8\u91cf\u7a7a\u95f4\u4e2d\uff0c\u5d4c\u5957\u8d39\u7c73\u9762\u968fkz<\/sub>\u53d8\u5316\u5448\u73b0\u5bf9\u79f0\u6027\u65cb\u8f6c\uff0c\u8bc1\u5b9e\u5176\u4f53\u76f8\u8d77\u6e90\u53ca\u5bf9\u78c1\u8c03\u5236\u7684\u5173\u952e\u4f5c\u7528\u3002<\/p>\n

\"\"<\/p>\n

\u56fe<\/strong>3<\/strong>\u5d4c\u5957\u8d39\u7c73\u9762\u4e0a\u7684\u8d5d\u80fd\u9699\u53ca\u5176\u6e29\u5ea6\u6f14\u5316\u3002\uff08<\/strong>A<\/strong>\uff09<\/strong>Si <\/strong>\u7ec8\u7aef\u6cbf\u8fde\u63a5\u5e03\u91cc\u6e0a\u533a\u89d2\u843d\u7684\u52a8\u91cf\u5207\u5272\u7684\u80fd\u5e26\u8272\u6563\u56fe\uff0c\u6355\u6349\u4e86\u8d39\u7c73\u9762\u7684\u5d4c\u5957\u90e8\u5206\u3002\u5149\u5b50\u80fd\u91cf\u4e3a<\/strong> 148 eV<\/strong>\uff0c\u5bf9\u5e94<\/strong> kz<\/sub>=0<\/strong>\u3002\u7eff\u8272\u7bad\u5934\u8868\u793a\u8d39\u7c73\u9762\u5d4c\u5957\u6ce2\u77e2\u3002\uff08<\/strong>B <\/strong>\u548c<\/strong> C<\/strong>\uff09\u5206\u522b\u4e3a\u4f4e\u4e8e\uff08<\/strong>T=10 K<\/strong>\uff09\u548c\u9ad8\u4e8e\uff08<\/strong>T=50 K<\/strong>\uff09\u5948\u5c14\u6e29\u5ea6\uff08<\/strong>46 K<\/strong>\uff09\u65f6<\/strong> A <\/strong>\u4e2d\u7eff\u8272\u77e9\u5f62\u533a\u57df\u7684\u80fd\u5e26\u8272\u6563\u653e\u5927\u56fe\u3002\u7ea2\u8272\u548c\u84dd\u8272\u7bad\u5934\u5206\u522b\u6307\u5411\u5d4c\u5957\u548c\u975e\u5d4c\u5957\u80fd\u5e26\u3002\uff08<\/strong>D<\/strong>\uff09\u5d4c\u5957\u80fd\u5e26\u5728<\/strong>TN<\/sub><\/strong>\u4ee5\u4e0b\u548c\u4ee5\u4e0a\uff08\u5206\u522b\u6709\u548c\u65e0\u8d5d\u80fd\u9699\uff09\u7684\u793a\u610f\u56fe\u3002\uff08<\/strong>E<\/strong>\uff09\u5d4c\u5957\uff08\u7ea2\u70b9\uff09\u548c\u975e\u5d4c\u5957\uff08\u84dd\u70b9\uff09\u80fd\u5e26\u5728<\/strong> EF <\/strong>\u9644\u8fd1\u7684\u8c31\u91cd\u968f\u6e29\u5ea6\u7684\u6f14\u5316\uff1b\u6bcf\u4e2a\u90fd\u662f<\/strong> G <\/strong>\u548c<\/strong> I <\/strong>\u4e2d\u7ea2\u8272\u548c\u84dd\u8272\u9634\u5f71\u533a\u57df\uff08\u00b1<\/strong>30 meV<\/strong>\uff09\u5185\u7684\u8c31\u5f3a\u5ea6\u79ef\u5206\u3002\uff08<\/strong>F <\/strong>\u548c<\/strong> H<\/strong>\uff09\u5206\u522b\u4e3a\u5d4c\u5957\u548c\u975e\u5d4c\u5957\u80fd\u5e26\u5728<\/strong>kF<\/sub><\/strong>\u5904\uff08<\/strong>B <\/strong>\u548c<\/strong> C <\/strong>\u4e2d\u7684\u7ea2\u8272\u548c\u84dd\u8272\u7bad\u5934\uff09\u4e0d\u540c\u6e29\u5ea6\u4e0b\u6d4b\u91cf\u7684\u80fd\u91cf\u5206\u5e03\u66f2\u7ebf\uff08<\/strong>EDC<\/strong>\uff09\u3002\u4e0a\u4e0b\u56fe\u5206\u522b\u4e3a\u6709\u548c\u65e0\u504f\u79fb\u7684<\/strong> EDC <\/strong>\u56fe\u3002\uff08<\/strong>G <\/strong>\u548c<\/strong> I<\/strong>\uff09\u5206\u522b\u4e3a<\/strong> F <\/strong>\u548c<\/strong> H <\/strong>\u4e2d<\/strong> EDC <\/strong>\u5173\u4e8e<\/strong> EF <\/strong>\u7684\u5bf9\u79f0\u5316\u56fe\u3002<\/strong>\u00a9 2025 Science<\/strong><\/p>\n

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

\u56fe<\/strong>4<\/strong>\u78c1\u7574\u4f9d\u8d56\u7684\u8d5d\u80fd\u9699\u3002\uff08<\/strong>A<\/strong>\uff09<\/strong>GdRu2<\/sub>Si2<\/sub><\/strong>\u8868\u9762\u5149\u53d1\u5c04\u5f3a\u5ea6\u7684\u7a7a\u95f4\u6620\u5c04\u3002\u9ed1\u8272\u548c\u7070\u8272\u533a\u57df\uff08\u9ad8\u5f3a\u5ea6\u548c\u4f4e\u5f3a\u5ea6\uff09\u5206\u522b\u8868\u793a<\/strong> Si <\/strong>\u548c<\/strong> Gd <\/strong>\u7ec8\u7aef\u3002\uff08<\/strong>B <\/strong>\u548c<\/strong> C<\/strong>\uff09\u4e24\u79cd\u4e0d\u540c\u78c1\u7574\u7684\u8d39\u7c73\u9762\u793a\u610f\u56fe\uff0c\u5206\u522b\u5bf9\u5e94<\/strong> A <\/strong>\u4e2d\u7684\u7ea2\u70b9\u548c\u84dd\u70b9\u3002\u5728\u7ea2\u70b9\u78c1\u7574\u4e2d\uff0c\u8d5d\u80fd\u9699\u4ec5\u6cbf\u6c34\u5e73\u5207\u5272\uff08<\/strong>cut H<\/strong>\uff09\u51fa\u73b0\uff1b\u5728\u84dd\u70b9\u78c1\u7574\u4e2d\uff0c\u8d5d\u80fd\u9699\u4ec5\u6cbf\u5782\u76f4\u5207\u5272\uff08<\/strong>cut V<\/strong>\uff09\u51fa\u73b0\u3002\uff08<\/strong>D <\/strong>\u5230<\/strong> K<\/strong>\uff09<\/strong>A <\/strong>\u4e2d\u6807\u8bb0\u4e3a<\/strong> I<\/strong>\u3001<\/strong>II<\/strong>\u3001<\/strong>III <\/strong>\u548c<\/strong> IV <\/strong>\u7684\u56db\u4e2a\u6591\u70b9\u7684\u80fd\u5e26\u8272\u6563\u56fe\u3002\u4e0a\u6392\uff08<\/strong>D <\/strong>\u5230<\/strong> J<\/strong>\uff09\u4e3a\u6cbf<\/strong> cut H <\/strong>\u7684\u7ed3\u679c\uff0c\u4e0b\u6392\uff08<\/strong>E <\/strong>\u5230<\/strong> K<\/strong>\uff09\u4e3a\u6cbf<\/strong> cut V <\/strong>\u7684\u7ed3\u679c\u3002\u6bcf\u4e2a\u9762\u677f\u6807\u6ce8\u4e86\u662f\u5426\u89c2\u5bdf\u5230\u8d5d\u80fd\u9699\u3002\uff08<\/strong>L<\/strong>\uff09<\/strong>Gd <\/strong>\u7ec8\u7aef\u5728<\/strong> 10 K <\/strong>\u4e0b\u7528<\/strong> 148 eV <\/strong>\u5149\u5b50\u6d4b\u91cf\u7684\u8d39\u7c73\u9762\u6620\u5c04\u53ca\u5bf9\u5e94<\/strong> B <\/strong>\u7684\u78c1\u7574\u3002\uff08<\/strong>M<\/strong>\uff09<\/strong>L <\/strong>\u4e2d\u7ea2\u8272\u77e9\u5f62\u533a\u57df\u7684\u8d39\u7c73\u9762\u653e\u5927\u56fe\u3002\u8ffd\u8e2a\u4e86\u56db\u4e2a\u8d39\u7c73\u9762\u90e8\u5206<\/strong> 1 <\/strong>\u5230<\/strong> 4 <\/strong>\u7684\u8d5d\u80fd\u9699\u52a8\u91cf\u6f14\u5316\u3002\u6709\u8d5d\u80fd\u9699\u548c\u65e0\u8d5d\u80fd\u9699\u7684<\/strong>kF<\/sub><\/strong>\u70b9\u5206\u522b\u7528\u7eff\u70b9\u548c\u54c1\u7ea2\u70b9\u6807\u8bb0\u3002\uff08<\/strong>N <\/strong>\u548c<\/strong> P<\/strong>\uff09\u5206\u522b\u4e3a\u8d39\u7c73\u9762\u90e8\u5206<\/strong> 1 <\/strong>\u548c<\/strong> 2 <\/strong>\u5728<\/strong>kF<\/sub><\/strong>\u5904\u7684<\/strong> EDC<\/strong>\u3002\u4ece\u4e0a\u5230\u4e0b\uff0c<\/strong>EDC <\/strong>\u6309<\/strong>ky<\/sub><\/strong>\u503c\u4ece\u5927\u5230\u5c0f\u6392\u5217\uff0c\u5982<\/strong> M <\/strong>\u4e2d\u7684\u9ed1\u8272\u7bad\u5934\u6240\u793a\u3002\uff08<\/strong>O <\/strong>\u548c<\/strong> Q<\/strong>\uff09\u5206\u522b\u4e3a<\/strong> N <\/strong>\u548c<\/strong> P <\/strong>\u4e2d<\/strong> EDC <\/strong>\u5173\u4e8e<\/strong> EF <\/strong>\u7684\u5bf9\u79f0\u5316\u56fe\u3002<\/strong>\u00a9 2025 Science<\/strong><\/p>\n

\"\"<\/p>\n

\u56fe<\/strong>5<\/strong>\u78c1\u573a\u548c\u6e29\u5ea6\u5faa\u73af\u5bf9\u78c1\u7574\u7684\u64cd\u7eb5\u3002\uff08<\/strong>A <\/strong>\u548c<\/strong> C<\/strong>\uff09\u5206\u522b\u4e3a\u6837\u54c1<\/strong> 1 <\/strong>\u548c<\/strong> 2 <\/strong>\u901a\u8fc7<\/strong> ARPES <\/strong>\u786e\u5b9a\u7684\u78c1\u7574\u3002\u6bcf\u4e2a\u5149\u53d1\u5c04\u5f3a\u5ea6\u7a7a\u95f4\u6620\u5c04\u4e0a\u6807\u8bb0\u4e86<\/strong> ARPES <\/strong>\u6d4b\u91cf\u7684\u6591\u70b9\u3002\u7ea2\u8272\u548c\u84dd\u8272\u8868\u793a\u4e0d\u540c\u78c1\u7574\u3002\uff08<\/strong>B <\/strong>\u548c<\/strong> D<\/strong>\uff09\u901a\u8fc7\u504f\u632f\u663e\u5fae\u955c\u89c2\u5bdf\u7684\u78c1\u7574\u3002\u56fe\u50cf\u7ed8\u5236\u4e86\u5948\u5c14\u6e29\u5ea6\u4ee5\u4e0b\uff08<\/strong>10 K<\/strong>\uff09\u548c\u4ee5\u4e0a\uff08<\/strong>50 K<\/strong>\uff09\u7684\u5f3a\u5ea6\u5dee\uff0c\u663e\u793a\u4e24\u79cd\u78c1\u7574\uff08\u7ea2\u8272\u548c\u84dd\u8272\u533a\u57df\uff09\u3002\uff08<\/strong>E<\/strong>\uff09<\/strong>GdRu2<\/sub>Si2<\/sub><\/strong>\u7684\u78c1\u76f8\u56fe\u3002\uff08<\/strong>F <\/strong>\u5230<\/strong> I<\/strong>\uff09\u5206\u522b\u4e3a\u76f8<\/strong> III<\/strong>\u3001<\/strong>II<\/strong>\u3001<\/strong>I <\/strong>\u548c\u987a\u78c1\u76f8\uff08<\/strong>PM<\/strong>\uff09\u7684\u81ea\u65cb\u7ec7\u6784\u793a\u610f\u56fe\u3002\u4ec5\u76f8<\/strong> I <\/strong>\u5177\u6709\u4e8c\u91cd\u78c1\u7ed3\u6784\u3002\uff08<\/strong>J <\/strong>\u5230<\/strong> M<\/strong>\uff09\u504f\u632f\u663e\u5fae\u955c\u5728\u4e0d\u540c\u6e29\u5ea6\u548c\u78c1\u573a\u5faa\u73af\u6b65\u9aa4\u540e\u89c2\u5bdf\u5230\u7684\u78c1\u7574\uff1a\u4ece<\/strong> 50 K <\/strong>\u51b7\u5374\u5230<\/strong> 10 K<\/strong>\uff08<\/strong>J<\/strong>\uff09\uff1b\u6fc0\u53d1\u5230\u76f8<\/strong> II <\/strong>\u540e\u8fd4\u56de\u76f8<\/strong> I<\/strong>\uff08<\/strong>K<\/strong>\uff09\uff1b\u6fc0\u53d1\u5230\u76f8<\/strong> III <\/strong>\u540e\u8fd4\u56de\u76f8<\/strong> I<\/strong>\uff08<\/strong>L<\/strong>\uff09\uff1b\u4ece<\/strong> 10 K <\/strong>\u5347\u6e29\u5230<\/strong> 50 K <\/strong>\u518d\u964d\u6e29\u56de<\/strong> 10 K<\/strong>\uff08<\/strong>M<\/strong>\uff09\u3002\u78c1\u573a\u5faa\u73af\u4f7f\u7528\u8109\u51b2\u78c1\u573a\u3002<\/strong>\u00a9 2025 Science<\/strong><\/p>\n

\u4f5c\u8005\u901a\u8fc7\u78c1\u7574\u9009\u62e9\u6027\u6d4b\u91cf\u53d1\u73b0\uff0c\u8d5d\u80fd\u9699\u4ec5\u5728\u7279\u5b9a\u78c1\u7574\u7684\u6c34\u5e73\uff08kx<\/sub>\uff09\u6216\u5782\u76f4\uff08ky<\/sub>\uff09\u65b9\u5411\u6253\u5f00\uff0c\u5bfc\u81f4\u8d39\u7c73\u9762\u65ad\u5f00\u5e76\u5f62\u6210\u4e8c\u91cd\u5bf9\u79f0\u7684\u8d39\u7c73\u5f27\u3002\u4e0d\u540c\u78c1\u7574\uff08Gd \u6216 Si \u7ec8\u7aef\u5747\u53ef\u51fa\u73b0\uff09\u4e2d\uff0c\u8d5d\u80fd\u9699\u7684\u65b9\u5411\u6027\u6253\u7834\u4e86\u6676\u4f53\u7684\u56db\u91cd\u5bf9\u79f0\u6027\uff0c\u663e\u793a\u78c1\u8c03\u5236\u7684\u5404\u5411\u5f02\u6027\u3002\u8d39\u7c73\u5f27\u7684\u52a8\u91cf\u4f4d\u7f6e\u7531\u78c1\u7574\u51b3\u5b9a\uff0c\u8bc1\u5b9e\u7535\u5b50\u7ed3\u6784\u4e0e\u78c1\u7574\u7684\u5185\u5728\u5173\u8054\uff0c\u662f\u4e2d\u5fc3\u5bf9\u79f0\u65af\u683c\u660e\u5b50\u78c1\u4f53\u7684\u72ec\u7279\u7279\u5f81\u3002\u6b64\u5916\uff0c\u4f5c\u8005\u5c55\u793a\u4e86GdRu2<\/sub>Si2<\/sub>\u4e2d\u78c1\u7574\u7684\u7075\u6d3b\u8c03\u63a7\uff1a\u65e0\u573a\u51b7\u5374\u65f6\u5f62\u6210\u4e24\u79cd\u78c1\u7574\uff08\u7ea2\/\u84dd\u533a\u57df\uff09\uff1b\u8109\u51b2\u78c1\u573a\u6fc0\u53d1\u81f3\u65af\u683c\u660e\u5b50\u76f8\uff08\u76f8 II\uff09\u6216\u66f4\u9ad8\u78c1\u76f8\uff08\u76f8 III\uff09\u540e\u8fd4\u56de\u57fa\u6001\uff0c\u53ef\u64e6\u9664\u539f\u6709\u7574\u7ed3\u6784\u5e76\u8bf1\u5bfc\u968f\u673a\u5c0f\u7574\uff1b\u800c\u6e29\u5ea6\u5faa\u73af\uff0810 K\u219250 K\u219210 K\uff09\u5219\u80fd\u5b8c\u7f8e\u6062\u590d\u521d\u59cb\u7574\u6a21\u5f0f\u3002\u78c1\u7574\u7684\u53ef\u64e6\u9664\u6027\u4e0e\u6062\u590d\u6027\uff0c\u7ed3\u5408\u5176\u4e0e\u81ea\u65cb\u7ec7\u6784\u7684\u5bf9\u79f0\u6027\u5339\u914d\uff08\u5982\u76f8 I \u7684\u4e8c\u91cd\u78c1\u7ed3\u6784\uff09\uff0c\u4e3a\u672a\u6765\u81ea\u65cb\u7535\u5b50\u5668\u4ef6\u7684\u78c1\u7574\u8c03\u63a7\u63d0\u4f9b\u4e86\u5b9e\u9a8c\u4f9d\u636e\u3002<\/p>\n

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

\u8be5\u7814\u7a76\u805a\u7126\u4e8e\u4e2d\u5fc3\u5bf9\u79f0\u65af\u683c\u660e\u5b50\u78c1\u4f53GdRu2<\/sub>Si2<\/sub>\uff0c\u501f\u52a9\u89d2\u5206\u8fa8\u5149\u7535\u5b50\u80fd\u8c31\uff0c\u6df1\u5165\u63a2\u7a76\u5176\u7535\u5b50\u7ed3\u6784\uff0c\u6210\u529f\u63ed\u793a\u4e86\u8d39\u7c73\u9762\u5d4c\u5957\u5f15\u53d1\u7684\u8d5d\u80fd\u9699\u548c\u8d39\u7c73\u5f27\u73b0\u8c61\uff0c\u4e3a\u65af\u683c\u660e\u5b50\u5728\u4e2d\u5fc3\u5bf9\u79f0\u6750\u6599\u4e2d\u7684\u5f62\u6210\u673a\u5236\u63d0\u4f9b\u4e86\u5173\u952e\u89c1\u89e3\uff0c\u4ee5\u201cPseudogap and Fermi arc induced by Fermi surface nesting in a centrosymmetric skyrmion magnet<\/strong>\u201d\u4e3a\u9898\u53d1\u8868\u5728\u56fd\u9645\u9876\u7ea7\u671f\u520aScience<\/strong>\u4e0a\uff0c\u5f15\u8d77\u4e86\u76f8\u5173\u9886\u57df\u7814\u7a76\u4eba\u5458\u70ed\u8bae\u3002<\/p>\n

\"\"<\/p>\n

\u4e09\u3001\u3010\u79d1\u5b66\u542f\u8fea\u3011<\/strong><\/p>\n

\u7efc\u4e0a\u6240\u8ff0\uff0c\u672c\u6587\u8bc1\u5b9e\u5728\u4e2d\u5fc3\u5bf9\u79f0\u65af\u683c\u660e\u5b50\u78c1\u4f53\u4e2d\uff0c\u8d39\u7c73\u9762\u5d4c\u5957\u901a\u8fc7 RKKY \u76f8\u4e92\u4f5c\u7528\u9a71\u52a8\u87ba\u65cb\u81ea\u65cb\u8c03\u5236\uff0c\u8fdb\u800c\u5f62\u6210\u65af\u683c\u660e\u5b50\u3002\u8d5d\u80fd\u9699\u548c\u8d39\u7c73\u5f27\u7684\u53d1\u73b0\u4e0d\u4ec5\u63ed\u793a\u4e86\u4e2d\u5fc3\u5bf9\u79f0\u65af\u683c\u660e\u5b50\u7684\u72ec\u7279\u7535\u5b50\u7ed3\u6784\uff0c\u8fd8\u4e3a\u7406\u89e3\u5176\u5f62\u6210\u673a\u5236\u548c\u5f00\u53d1\u76f8\u5173\u81ea\u65cb\u7535\u5b50\u5668\u4ef6\u63d0\u4f9b\u4e86\u91cd\u8981\u4f9d\u636e\u3002<\/p>\n

\u539f\u6587\u8be6\u60c5<\/strong>\uff1aDong Y, Kinoshita Y, Ochi M, et al. Pseudogap and Fermi arc induced by Fermi surface nesting in a centrosymmetric skyrmion magnet[J]. Science, 2025, 388(6747): 624-630. https:\/\/doi.org\/10.1126\/science.adj7710<\/p>\n

\u672c\u6587\u7531\u666f\u884c\u64b0\u7a3f<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"

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