{"id":269812,"date":"2025-12-16T06:13:00","date_gmt":"2025-12-15T22:13:00","guid":{"rendered":"http:\/\/www.cailiaoniu.com\/?p=269812"},"modified":"2025-12-15T20:30:07","modified_gmt":"2025-12-15T12:30:07","slug":"%e8%b6%85%e5%bf%ab%e7%a3%81%e7%bf%bb%e8%bd%ac%e6%96%b0%e7%aa%81%e7%a0%b4%ef%bc%9a%e7%a7%91%e5%ad%a6%e5%ae%b6%e9%a6%96%e6%ac%a1%e5%ae%9e%e7%8e%b0%e9%9d%9e%e7%83%ad%e4%b8%8e%e7%83%ad%e8%be%85%e5%8a%a9","status":"publish","type":"post","link":"http:\/\/www.cailiaoniu.com\/?p=269812","title":{"rendered":"\u8d85\u5feb\u78c1\u7ffb\u8f6c\u65b0\u7a81\u7834\uff1a\u79d1\u5b66\u5bb6\u9996\u6b21\u5b9e\u73b0\u975e\u70ed\u4e0e\u70ed\u8f85\u52a9\u53cc\u6a21\u5f0f\u64cd\u63a7"},"content":{"rendered":"\n<p>\u4e00\u3001\u3010\u79d1\u5b66\u80cc\u666f\u3011<\/p>\n\n\n\n<p>\u53cd\u94c1\u78c1\u6750\u6599\u56e0\u5176\u4f4e\u6742\u6563\u573a\u3001\u5bf9\u5916\u78c1\u573a\u4e0d\u654f\u611f\u4ee5\u53ca\u9ad8\u9891\u52a8\u529b\u5b66\u7279\u6027\uff0c\u5728\u4e0b\u4e00\u4ee3\u81ea\u65cb\u7535\u5b50\u5b66\u5e94\u7528\u4e2d\u53d7\u5230\u5e7f\u6cdb\u5173\u6ce8\u3002\u5176\u4e2d\uff0c\u53cd\u94c1\u78c1\u5916\u5c14\u534a\u91d1\u5c5e&nbsp;Mn\u2083Sn&nbsp;\u56e0\u5176\u975e\u5171\u7ebf\u81ea\u65cb\u7ed3\u6784\u5728\u5ba4\u6e29\u4e0b\u8868\u73b0\u51fa\u663e\u8457\u7684\u53cd\u5e38\u970d\u5c14\u6548\u5e94\u3001\u53cd\u5e38\u80fd\u65af\u7279\u6548\u5e94\u548c\u78c1\u5149\u514b\u5c14\u6548\u5e94\uff0c\u6210\u4e3a\u7814\u7a76\u70ed\u70b9\u3002\u7136\u800c\uff0c\u5c3d\u7ba1\u5df2\u6709\u7814\u7a76\u62a5\u9053\u4e86\u7535\u6d41\u8bf1\u5bfc Mn\u2083Sn \u4e2d\u78c1\u516b\u6781\u77e9\u7684\u7ffb\u8f6c\uff0c\u4f46\u5176\u8d85\u5feb\u7ffb\u8f6c\u673a\u5236\u5c1a\u672a\u660e\u786e\uff0c\u5c24\u5176\u662f\u7ffb\u8f6c\u8fc7\u7a0b\u4e2d\u662f\u5426\u5b58\u5728\u975e\u70ed\u8fc7\u7a0b\u4ecd\u5b58\u5728\u4e89\u8bae\u3002\u672c\u6587\u901a\u8fc7\u8d85\u5feb\u65f6\u95f4\u5206\u8fa8\u78c1\u5149\u514b\u5c14\u6548\u5e94\u6210\u50cf\u6280\u672f\uff0c\u9996\u6b21\u5b9e\u73b0\u4e86\u5bf9\u591a\u6676 Mn\u2083Sn \u8584\u819c\u4e2d\u7535\u6d41\u8bf1\u5bfc\u78c1\u516b\u6781\u77e9\u7ffb\u8f6c\u52a8\u529b\u5b66\u7684\u65f6\u7a7a\u5206\u8fa8\u89c2\u6d4b\uff0c\u63ed\u793a\u4e86\u4e24\u79cd\u4e0d\u540c\u7684\u7ffb\u8f6c\u673a\u5236\uff1a\u4e00\u79cd\u662f\u975e\u70ed\u8fc7\u7a0b\uff0c\u53e6\u4e00\u79cd\u662f\u6e29\u5ea6\u8f85\u52a9\u8fc7\u7a0b\u3002\u5c3d\u7ba1\u5df2\u6709\u7814\u7a76\u62a5\u9053\u4e86\u7535\u6d41\u8bf1\u5bfc Mn\u2083Sn \u4e2d\u78c1\u516b\u6781\u77e9\u7684\u7ffb\u8f6c\uff0c\u4f46\u5176\u8d85\u5feb\u7ffb\u8f6c\u673a\u5236\u5c1a\u4e0d\u660e\u786e\u3002<\/p>\n\n\n\n<p>\u4e8c\u3001\u3010\u79d1\u5b66\u521b\u65b0\u3011<\/p>\n\n\n\n<p>\u8fd1\u65e5\uff0c\u6765\u81ea\u65e5\u672c\u4eac\u90fd\u5927\u5b66\u7684Kazuma Ogawa\u548cRyo Shimano\u6559\u6388\u5229\u7528\u8d85\u5feb\u78c1\u5149\u514b\u5c14\u6548\u5e94\u6210\u50cf\u6280\u672f\uff0c\u5bf9\u591a\u6676 Mn\u2083Sn \u8584\u819c\u4e2d\u7535\u6d41\u8bf1\u5bfc\u7684\u7ffb\u8f6c\u52a8\u529b\u5b66\u8fdb\u884c\u4e86\u65f6\u7a7a\u5206\u8fa8\u89c2\u6d4b\uff0c\u7535\u6d41\u8109\u51b2\u6700\u77ed\u53ef\u8fbe 140 ps\u3002\u7ed3\u679c\u8868\u660e\uff0c\u6839\u636e\u7535\u6d41\u8109\u51b2\u7684\u5f3a\u5ea6\u548c\u6301\u7eed\u65f6\u95f4\uff0c\u5b58\u5728\u4e24\u79cd\u4e0d\u540c\u7684\u7ffb\u8f6c\u673a\u5236\uff1a\u4e00\u79cd\u662f\u4e0d\u9700\u8981\u53cd\u94c1\u78c1\u5e8f\u77ac\u6001\u7194\u5316\u7684\u975e\u70ed\u8fc7\u7a0b\uff0c\u53e6\u4e00\u79cd\u662f\u4f9d\u8d56\u4e8e\u52a0\u70ed\u81f3\u78c1\u6709\u5e8f\u6e29\u5ea6\u4ee5\u4e0a\u7684\u6e29\u5ea6\u8f85\u52a9\u8fc7\u7a0b\u3002\u672c\u7814\u7a76\u7a81\u663e\u4e86 Mn\u2083Sn \u5728\u8d85\u5feb\u78c1\u8bb0\u5f55\u5668\u4ef6\u4e2d\u7684\u6f5c\u529b\u3002\u76f8\u5173\u6210\u679c\u4ee5\u201cUltrafast time-resolved observation of non-thermal current-induced switching in an antiferromagnetic Weyl semimetal\u201d\u4e3a\u9898\u53d1\u8868\u5728\u56fd\u9645\u6750\u6599\u9886\u57df\u9876\u7ea7\u671f\u520a<strong><em>Nature Materials<\/em><\/strong>\u671f\u520a\u4e0a\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"554\" height=\"216\" src=\"http:\/\/www.cailiaoniu.com\/wp-content\/uploads\/2025\/12\/\u56fe\u72471.jpg\" alt=\"\" class=\"wp-image-269813\" \/><\/figure>\n\n\n\n<p>\u56fe 1\uff1a\u5b9e\u9a8c\u88c5\u7f6e\u4e0e\u5668\u4ef6\u7279\u6027\u00a92025 Springer Nature<\/p>\n\n\n\n<p>a. \u5b9e\u9a8c\u88c5\u7f6e\u793a\u610f\u56fe\u3002\u63d2\u56fe\u4e3a\u5668\u4ef6\u7ed3\u6784\u53ca\u78c1\u516b\u6781\u77e9\u7ffb\u8f6c\u793a\u610f\u56fe\u3002\u5e73\u884c\u4e8e\u5916\u78c1\u573a\u7684\u7535\u6d41\u6ce8\u5165\u53ef\u4f7f\u7531\u516d\u4e2a Mn \u78c1\u77e9\u7ec4\u6210\u7684\u78c1\u516b\u6781\u77e9\u5728\u201c\u4e0a\u201d\u548c\u201c\u4e0b\u201d\u72b6\u6001\u4e4b\u95f4\u7ffb\u8f6c\u3002<br>b. \u5668\u4ef6\u4fef\u89c6\u793a\u610f\u56fe\u3002\u84dd\u8272\u533a\u57df\u4e3a Mn\u2083Sn\uff0814 nm\uff09\/Ta\uff085 nm\uff09\u533a\u57df\uff0c\u7eff\u8272\u533a\u57df\u4e3a\u7528\u4e8e\u970d\u5c14\u7535\u6d41\u68c0\u6d4b\u7684\u63a5\u89e6\u533a\u57df\u3002<br>c. \u5728 1 ms \u7535\u6d41\u8109\u51b2\u4f5c\u7528\u4e0b\u7ffb\u8f6c\u7684\u9759\u6001 MOKE \u56fe\u50cf\u3002\u9ed1\u8272\u865a\u7ebf\u8868\u793a\u5668\u4ef6\u8fb9\u7f18\u3002\u6bd4\u4f8b\u5c3a\uff1a4 \u00b5m\u3002<br>d. 1 ms \u7535\u6d41\u8109\u51b2\u4e0b\u970d\u5c14\u7535\u538b\uff08\u7ea2\u8272\uff09\u548c MOKE \u4fe1\u53f7\uff08\u84dd\u8272\uff09\u968f\u5cf0\u503c\u7535\u6d41\u5bc6\u5ea6 j \u7684\u53d8\u5316\u3002<br>e. 570 ps \u7535\u6d41\u8109\u51b2\u4e0b\u970d\u5c14\u7535\u538b\u968f j \u7684\u53d8\u5316\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"554\" height=\"323\" src=\"http:\/\/www.cailiaoniu.com\/wp-content\/uploads\/2025\/12\/\u56fe\u72472.jpg\" alt=\"\" class=\"wp-image-269814\" \/><\/figure>\n\n\n\n<p>\u56fe 2\uff1aMn\u2083Sn \u8584\u819c\u4e2d\u7535\u6d41\u8bf1\u5bfc\u7684\u7ffb\u8f6c\u52a8\u529b\u5b66\u00a92025 Springer Nature<\/p>\n\n\n\n<p>a. \u6ce8\u5165\u7684 570 ps \u7535\u6d41\u8109\u51b2\u6ce2\u5f62\u3002<br>b. \u8bf1\u5bfc\u7684\u514b\u5c14\u692d\u5706\u7387\u52a8\u529b\u5b66\u3002\u7ea2\u8272\uff08\u84dd\u8272\uff09\u8868\u793a\u521d\u59cb\u72b6\u6001\u4e3a \u03b7K = +1\uff08\u03b7K = -1\uff09\u7684\u52a8\u529b\u5b66\u6570\u636e\u3002<br>c. \u03b7K,+ \u5728\u4e0d\u540c\u5ef6\u8fdf\u65f6\u95f4\u4e0b\u7684 TR-MOKE \u56fe\u50cf\u3002<br>d, e. \u03c4p = 240 ps \u7535\u6d41\u8109\u51b2\u7684\u6ce2\u5f62\uff08d\uff09\u548c\u52a8\u529b\u5b66\uff08e\uff09\u3002<br>f, g. \u03c4p = 140 ps \u5149\u7535\u6d41\u8109\u51b2\u7684\u6ce2\u5f62\uff08f\uff09\u548c\u52a8\u529b\u5b66\uff08g\uff09\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"554\" height=\"726\" src=\"http:\/\/www.cailiaoniu.com\/wp-content\/uploads\/2025\/12\/\u56fe\u72473.jpg\" alt=\"\" class=\"wp-image-269815\" \/><\/figure>\n\n\n\n<p>\u56fe 3\uff1a\u7ffb\u8f6c\u52a8\u529b\u5b66\u7684\u7535\u6d41\u632f\u5e45\u4f9d\u8d56\u6027\u00a92025 Springer Nature<\/p>\n\n\n\n<p>a. \u4e0d\u540c\u7535\u6d41\u632f\u5e45\u4e0b 570 ps \u7535\u6d41\u8109\u51b2\u7684\u6ce2\u5f62\u3002<br>b. j = 1.1 \u00d7 10\u00b9\u00b2 A m\u207b\u00b2 \u65f6\u7684\u52a8\u529b\u5b66\uff0c\u4ec5\u663e\u793a\u90e8\u5206\u53bb\u78c1\u5316\uff0c\u65e0\u7ffb\u8f6c\u3002<br>c. j = 1.4 \u00d7 10\u00b9\u00b2 A m\u207b\u00b2 \u65f6\u7684\u52a8\u529b\u5b66\uff0c\u663e\u793a\u7ffb\u8f6c\u5e76\u4f34\u968f\u77ac\u6001\u9ad8\u6e29\u6001\u3002<br>d. \u5927\u7535\u6d41\u5bc6\u5ea6\u4e0b MOKE \u54cd\u5e94\u533a\u57df\u7684\u6269\u5c55\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"554\" height=\"301\" src=\"http:\/\/www.cailiaoniu.com\/wp-content\/uploads\/2025\/12\/\u56fe\u72474.jpg\" alt=\"\" class=\"wp-image-269816\" \/><\/figure>\n\n\n\n<p>\u56fe 4\uff1a\u9762\u5185\u78c1\u573a\u5bf9\u7535\u6d41\u8bf1\u5bfc\u52a8\u529b\u5b66\u7684\u5f71\u54cd\u00a92025 Springer Nature<\/p>\n\n\n\n<p>a.\u4e0d\u540c\u9762\u5185\u78c1\u573a\u4e0b\u7684dR\/R \u52a8\u529b\u5b66\uff08\u53cc\u6298\u5c04\u52a8\u529b\u5b66\uff09\u3002<br>b, c.\u521d\u59cb\u72b6\u6001\u4e3a \u03b7K=+1\uff08b\uff09\u548c \u03b7K =-1\uff08c\uff09\u7684\u514b\u5c14\u692d\u5706\u7387\u52a8\u529b\u5b66\u3002<br>d.\u624b\u6027\u81ea\u65cb\u65cb\u8f6c\uff08CSR\uff09\u9a71\u52a8\u7684\u78c1\u516b\u6781\u77e9\u7ffb\u8f6c\u793a\u610f\u56fe\u3002<\/p>\n\n\n\n<p>\u4e09\u3001\u3010\u79d1\u5b66\u542f\u793a\u3011<\/p>\n\n\n\n<p>\u8fd9\u9879\u7814\u7a76\u9996\u6b21\u5728\u5b9e\u9a8c\u4e0a\u76f4\u63a5\u89c2\u6d4b\u5230\u53cd\u94c1\u78c1\u5916\u5c14\u534a\u91d1\u5c5eMn\u2083Sn\u4e2d\u5b58\u5728\u4e24\u79cd\u7535\u6d41\u8bf1\u5bfc\u78c1\u7ffb\u8f6c\u673a\u5236\uff1a\u975e\u70ed\u76f8\u5e72\u7ffb\u8f6c\u4e0e\u6e29\u5ea6\u8f85\u52a9\u7ffb\u8f6c\u3002\u5b83\u8bc1\u5b9e\u4e86\u624b\u6027\u81ea\u65cb\u65cb\u8f6c\u7406\u8bba\uff0c\u63ed\u793a\u8d85\u5feb\u7ffb\u8f6c\u65e0\u9700\u7194\u5316\u78c1\u6709\u5e8f\uff0c\u4e3a\u7406\u89e3\u81ea\u65cb\u8f68\u9053\u529b\u77e9\u7684\u672c\u8d28\u63d0\u4f9b\u4e86\u5173\u952e\u65f6\u7a7a\u8bc1\u636e\u3002\u7814\u7a76\u53d1\u5c55\u7684\u8d85\u5feb\u78c1\u5149\u6210\u50cf\u65b9\u6cd5\uff0c\u5b9e\u73b0\u4e86\u5bf9\u4e9a\u7eb3\u79d2\u81ea\u65cb\u52a8\u529b\u5b66\u7684\u5206\u8fa8\u3002\u8fd9\u6807\u5fd7\u7740\u901a\u8fc7\u8109\u51b2\u5de5\u7a0b\u53ef\u4e3b\u52a8\u9009\u62e9\u7ffb\u8f6c\u8def\u5f84\uff0c\u4e3a\u8bbe\u8ba1\u8d85\u5feb\u3001\u4f4e\u529f\u8017\u7684\u81ea\u65cb\u7535\u5b50\u5668\u4ef6\u5960\u5b9a\u4e86\u539f\u7406\u57fa\u7840\uff0c\u5e76\u63a8\u52a8\u4e86\u53cd\u94c1\u78c1\u6750\u6599\u8fc8\u5411\u592a\u8d6b\u5179\u9891\u6bb5\u5e94\u7528\u7684\u63a2\u7d22\u3002<\/p>\n\n\n\n<p>\u8bba\u6587\u8be6\u60c5\uff1a<a href=\"https:\/\/www.nature.com\/articles\/s41563-025-02402-8\">https:\/\/www.nature.com\/articles\/s41563-025-02402-8<\/a><\/p>\n\n\n\n<p>\u672c\u6587\u6709\u865a\u8c37\u7eb3\u7269\u4f9b\u7a3f<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e00\u3001\u3010\u79d1\u5b66\u80cc\u666f\u3011 \u53cd\u94c1\u78c1\u6750\u6599\u56e0\u5176\u4f4e\u6742\u6563\u573a\u3001\u5bf9\u5916\u78c1\u573a\u4e0d\u654f\u611f\u4ee5\u53ca\u9ad8\u9891\u52a8\u529b\u5b66\u7279\u6027\uff0c\u5728\u4e0b\u4e00\u4ee3\u81ea\u65cb\u7535\u5b50\u5b66\u5e94\u7528\u4e2d\u53d7\u5230\u5e7f\u6cdb\u5173\u6ce8\u3002\u5176\u4e2d\uff0c\u53cd\u94c1\u78c1\u5916\u5c14\u534a\u91d1\u5c5e&nbsp;Mn\u2083Sn&#038;&#8230;<\/p>\n","protected":false},"author":34569,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[],"class_list":["post-269812","post","type-post","status-publish","format-standard","hentry","category-keji"],"_links":{"self":[{"href":"http:\/\/www.cailiaoniu.com\/index.php?rest_route=\/wp\/v2\/posts\/269812"}],"collection":[{"href":"http:\/\/www.cailiaoniu.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.cailiaoniu.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.cailiaoniu.com\/index.php?rest_route=\/wp\/v2\/users\/34569"}],"replies":[{"embeddable":true,"href":"http:\/\/www.cailiaoniu.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=269812"}],"version-history":[{"count":1,"href":"http:\/\/www.cailiaoniu.com\/index.php?rest_route=\/wp\/v2\/posts\/269812\/revisions"}],"predecessor-version":[{"id":269817,"href":"http:\/\/www.cailiaoniu.com\/index.php?rest_route=\/wp\/v2\/posts\/269812\/revisions\/269817"}],"wp:attachment":[{"href":"http:\/\/www.cailiaoniu.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=269812"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.cailiaoniu.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=269812"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.cailiaoniu.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=269812"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}