{"id":75161,"date":"2017-04-12T06:30:35","date_gmt":"2017-04-11T22:30:35","guid":{"rendered":"\/\/m.iemloyee.com\/?p=75161"},"modified":"2017-04-12T22:11:44","modified_gmt":"2017-04-12T14:11:44","slug":"nature-materials-%e9%93%81%e7%a3%81%e9%93%81%e7%94%b5%e6%9d%82%e5%8c%96%e7%bb%93%e6%9e%84%e4%b8%ad%e7%94%b5%e5%9c%ba%e8%af%b1%e5%af%bc%e7%a3%81%e5%8c%96%e8%bd%ac%e5%90%91%e7%9a%84%e7%94%b5%e5%9c%ba","status":"publish","type":"post","link":"\/\/m.iemloyee.com\/?p=75161","title":{"rendered":"\u534a\u5bfc\u4f53\u6240\u738b\u5f00\u53cbNature Materials: \u94c1\u78c1\u94c1\u7535\u6742\u5316\u7ed3\u6784\u4e2d\u7535\u573a\u8bf1\u5bfc\u78c1\u5316\u8f6c\u5411\u7684\u7535\u573a\u63a7\u5236"},"content":{"rendered":"

\u3010\u5f15\u8a00\u3011<\/strong>\u00a0 <\/strong><\/p>\n

\u5229\u7528\u78c1\u4f53\u8fdb\u884c\u4fe1\u606f\u8bb0\u5f55\u7684\u5668\u4ef6\u90fd\u9700\u8981\u63a7\u5236\u78c1\u4f53\u7684\u78c1\u8ddd\uff0c\u5373\u4f7f\u5f97\u78c1\u4f53\u7684\u78c1\u77e9\u7ffb\u8f6c\uff08\u78c1\u5316\u53cd\u8f6c\uff09\uff0c\u4ece\u800c\u5b9e\u73b0 \u201c0\u201d\u548c \u201c1\u201d \u7684\u4fe1\u606f\u8f6c\u5316\u3002\u4f20\u7edf\u7684\u78c1\u6027\u968f\u673a\u5b58\u53d6\u5b58\u50a8\u5668\u662f\u5229\u7528\u5916\u78c1\u573a\u6765\u5b9e\u73b0\u78c1\u5316\u53cd\u8f6c\uff0c\u78c1\u573a\u8bbe\u5907\u5e9e\u5927\u590d\u6742\uff0c\u7ed9\u4eba\u5e26\u6765\u5f88\u591a\u4e0d\u4fbf\uff0c\u53e6\u5916\u8017\u80fd\u8f83\u9ad8\u3002\u5177\u6709\u9ad8\u5782\u76f4\u53cd\u6f14\u975e\u5bf9\u79f0\u6027\u7684\u91cd\u91d1\u5c5e\/\u94c1\u78c1\u4f53\u7ed3\u6784\uff0c\u5f53\u5bf9\u5176\u65bd\u52a0\u4e00\u4e2a\u7535\u6d41\uff0c\u5176\u80fd\u4ea7\u751f\u76f8\u5e94\u7684\u81ea\u65cb\u7535\u6d41\uff0c\u4ece\u800c\u5bf9\u78c1\u5316\u65b9\u5411\u8fdb\u884c\u63a7\u5236\u3002\u57fa\u4e8e\u8be5\u7ed3\u6784\u7684\u78c1\u6027\u5b58\u50a8\u8bbe\u5907\uff0c\u4e0d\u9700\u8981\u5916\u52a0\u78c1\u573a\u63a7\u5236\uff0c\u5f15\u8d77\u4e86\u4eba\u4eec\u7684\u5e7f\u6cdb\u5173\u6ce8\u3002\u4f46\u73b0\u5728\u8fd9\u79cd\u5229\u7528\u81ea\u65cb\u8f68\u9053\u77e9\u78c1\u6027\u5b58\u50a8\u8bbe\u5907\u7684\u53ef\u63a7\u5236\u6027\u548c\u53ef\u9760\u6027\u90fd\u4e0d\u9ad8\uff0c\u8fd9\u4e25\u91cd\u963b\u788d\u4e86\u5176\u7684\u5e94\u7528\uff0c\u662f\u5384\u5f85\u89e3\u51b3\u7684\u95ee\u9898\u3002<\/p>\n

\u3010\u6210\u679c\u7b80\u4ecb\u3011<\/strong><\/p>\n

\u8fd1\u65e5\uff0c\u6765\u81ea\u4e2d\u79d1\u9662\u534a\u5bfc\u4f53\u6240\u738b\u5f00\u53cb\uff08\u901a\u8baf\u4f5c\u8005\uff09<\/strong>\u7b49\u4eba\u5236\u5907\u4e00\u79cd\u94c1\u78c1\u94c1\u7535\u6742\u5316\u7ed3\u6784\u6750\u6599\uff0c\u5176\u80fd\u5b9e\u73b0\u5f88\u597d\u7684\u7535\u573a\u8bf1\u5bfc\u78c1\u5316\u8f6c\u5411\u7684\u7535\u573a\u63a7\u5236\uff0c\u5927\u5927\u63a8\u52a8\u4e86\u5229\u7528\u81ea\u65cb\u8f68\u9053\u77e9\u78c1\u6027\u5b58\u50a8\u8bbe\u5907\u7684\u5e94\u7528\u3002<\/p>\n

\u4f5c\u8005\u5728PMN-PT\u886c\u5e95\u4e0a\u6e85\u9540\u6c89\u79efPt(4nm)\/CoNiCo(0.4\/0.2\/0.4nm)\/Pt(2nm)\u591a\u5c42\u8584\u819c\uff0c\u4ece\u800c\u5236\u5907\u51fa\u4e86\u8fd9\u79cd\u94c1\u78c1\u94c1\u7535\u6742\u5316\u7ed3\u6784\u6750\u6599\u3002\u4f5c\u8005\u5229\u7528PMN-PT\u886c\u5e95\u4ea7\u751f\u7535\u573a\u6765\u63a7\u5236\u94c1\u78c1\u94c1\u7535\u6742\u5316\u7ed3\u6784\u4e2d\u94c1\u78c1\u4e2d\u7684\u81ea\u65cb\u8f68\u9053\u8ddd\uff0c\u4ece\u800c\u5b9e\u73b0\u4e86\u5728\u6ca1\u6709\u5916\u78c1\u573a\u7684\u6761\u4ef6\u4e0b\u5bf9\u78c1\u5316\u53cd\u8f6c\u7684\u63a7\u5236\u3002\u800c\u4e14\u901a\u8fc7\u8c03\u8282\u65bd\u52a0\u5728PMN-PT\u886c\u5e95\u4e0a\u7684\u7535\u573a\u53ef\u4ee5\u5b8c\u6210\u5bf9\u78c1\u5316\u65b9\u5411\u7684\u63a7\u5236\uff0c\u4ece\u800c\u8d4b\u4e88\u4e86\u8fd9\u79cd\u6750\u6599\u53ef\u7f16\u8bd1\u7684\u529f\u80fd\uff0c\u5728PMN-PT\u886c\u5e95\u4e0a\u7684\u7535\u573a\u4e0e\u4f20\u7edf\u78c1\u6027\u968f\u673a\u5b58\u53d6\u5b58\u50a8\u5668\u4e2d\u7684\u5916\u78c1\u573a\u4f5c\u7528\u76f8\u540c\u3002\u4f5c\u8005\u8fd8\u901a\u8fc7\u5b8f\u81ea\u65cb\u8ba1\u7b97\u548c\u5fae\u78c1\u5b66\u6a21\u62df\u8bc1\u660e\u4e86\u7535\u573a\u53ef\u4ee5\u8ba9CoNiCo\u94c1\u78c1\u4f53\u4e2d\u4ea7\u751f\u989d\u5916\u7684\u81ea\u65cb\u8f68\u9053\u8ddd\u3002<\/p>\n

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

\u56fe<\/strong>1<\/strong>\u00a0 <\/strong>\u5668\u4ef6\u7ed3\u6784\u7684\u539f\u7406\u56fe\u548c\u5668\u4ef6\u4e2d\u7535\u6d41\u8f6c\u5411\u7684\u6d4b\u91cf<\/strong><\/p>\n

\"\"<\/p>\n

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\uff08c\uff09\u5728Hx =+3 Oe\u548cHx =-3 Oe\u7684\u9762\u5185\u78c1\u573a\u4e0b\uff0c\u4f9d\u636e\u53cd\u5e38\u970d\u5c14\u6548\u5e94\u63a2\u6d4b\u5230\u7684\u7535\u6d41\u8bf1\u5bfc\u78c1\u5316\u8f6c\u5411\u3002<\/p>\n

\uff08d\uff09\u5728\u6ca1\u6709\u9762\u5185\u78c1\u573a\u7684\u6761\u4ef6\u4e0b\uff0c\u7535\u6d41\u8bf1\u5bfc\u786e\u5b9a\u7684\u78c1\u5316\u8f6c\u5411\u3002<\/p>\n

\u56fe<\/strong>2\u00a0 <\/strong>\u65e0\u5916\u78c1\u573a\u6761\u4ef6\u4e0b\u7535\u6d41\u8109\u51b2\u8bf1\u5bfc\u7684\u78c1\u5316\u8f6c\u5411\u7684\u7535\u573a\u63a7\u5236<\/strong><\/p>\n

\"\"<\/p>\n

\u00a0 <\/strong>\uff08a\uff09\u6d4b\u91cf\u7684\u88c5\u5907\u539f\u7406\u56fe\u3002\u65bd\u52a0\u4e8ePMN-PT\u886c\u5e95\u7684\u7535\u573a\u65b9\u5411\u6cbfx\u8f74\uff0c\u4e24\u4e2a\u7535\u6781\u4e4b\u95f4\u7684\u8ddd\u79bb\u4e3a1mm\u3002\u5728\u7535\u6d41\u53cd\u8f6c\u6d4b\u91cf\u7684\u8fc7\u7a0b\u4e2d\uff0c\u65bd\u52a0\u4e8ePMN-PT\u886c\u5e95\u7684\u7535\u573a\u662f\u64a4\u6389\u7684\u3002<\/p>\n

\uff08b\uff09PMN-PT\u886c\u5e95\u88ab+500v\u7535\u538b\u6781\u5316\u540e\uff0c\u7535\u6d41\u8bf1\u5bfc\u7684\u78c1\u5316\u8f6c\u5411\u3002<\/p>\n

\uff08c\uff09PMN-PT\u886c\u5e95\u88ab-500v\u7535\u538b\u6781\u5316\u540e\uff0c\u7535\u6d41\u8bf1\u5bfc\u7684\u78c1\u5316\u8f6c\u5411\u3002<\/p>\n

\uff08d\uff09\u5e95\u5c42\u4e3a3nm\u539aPt\u5c42\u7684\u5668\u4ef6\u88ab\u65bd\u52a0\u4e00\u7cfb\u5217\u8109\u51b2\u7535\u6d41\u7684\u78c1\u5316\u8f6c\u5411\u3002\u53e6\u5916\uff0c\u5c0f\u7535\u6d41IM <\/sub>(\u223c0.1 mA)\u4e5f\u88ab\u65bd\u52a0\u4e8e\u5668\u4ef6\u4e0a\uff0c\u662f\u4e3a\u4e86\u6d4b\u91cf\u970d\u5c14\u7535\u963b\u4ece\u800c\u533a\u5206\u78c1\u5316\u72b6\u6001\u3002<\/p>\n

\u56fe<\/strong>3\u00a0 <\/strong>\u78c1\u5316\u8f6c\u5411\u7684\u539f\u56e0<\/strong><\/p>\n

\"\"<\/p>\n

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\uff08f\uff09Ep <<\/em>0\u65f6\uff0c\u7531\u81ea\u65cb\u970d\u5c14\u6548\u5e94\u548c\u81ea\u65cb\u8f68\u9053\u8026\u5408\u53e0\u52a0\u5728CoNiCo\u78c1\u4f53\u4e2d\u4ea7\u751f\u7684\u81ea\u65cb\u8f68\u9053\u8ddd\u7684\u56fe\u89e3\u3002<\/p>\n

\u56fe<\/strong>4\u00a0 <\/strong>\u81ea\u65cb\u7535\u6d41\u5bc6\u5ea6\u5206\u5e03\u548c\u78c1\u5316\u8f6c\u5411<\/strong><\/p>\n

\"\"<\/p>\n

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

\u4ed6\u4eec\u8bbe\u8ba1\u5f00\u53d1\u7684\u8fd9\u79cd\u94c1\u78c1\u94c1\u7535\u6742\u5316\u7ed3\u6784\u6750\u6599\uff0c\u80fd\u591f\u5b9e\u73b0\u7535\u573a\u5bf9\u7535\u6d41\u8bf1\u5bfc\u7684\u78c1\u5316\u53cd\u8f6c\u5f88\u597d\u7684\u63a7\u5236\uff0c\u5728\u53ef\u7f16\u8bd1\u7684\u975e\u6325\u53d1\u78c1\u6027\u5b58\u50a8\u5668\u6709\u5de8\u5927\u5e94\u7528\u524d\u666f\u3002\u800c\u4e14\uff0c\u7531\u4e8e\u7535\u573a\u80fd\u591f\u5bf9\u78c1\u5316\u65b9\u5411\u8fdb\u884c\u63a7\u5236\uff0c\u8ba9\u4e00\u4e2a\u6216\u4e8c\u4e2a\u78c1\u6bd4\u7279\u5b9e\u73b0\u591a\u4e2a\u529f\u80fd\u903b\u8f91\u6210\u4e3a\u53ef\u80fd\u3002\u8fd9\u79cd\u6750\u6599\u80fd\u8ba9\u5668\u4ef6\u7684\u8bbe\u8ba1\u66f4\u4e3a\u7b80\u5355\uff0c\u5927\u5927\u4fe1\u606f\u79d1\u6280\u7684\u53d1\u5c55\u3002<\/p>\n

\u6587\u732e\u94fe\u63a5<\/strong>\uff1aElectric field control of deterministic current-induced magnetization switching in a hybrid ferromagnetic\/ ferroelectric structure<\/a><\/strong>\uff08Nature Materials,2017, DOI:10.1038\/NMAT4886\uff09<\/p>\n

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