{"id":220263,"date":"2021-04-08T06:30:34","date_gmt":"2021-04-07T22:30:34","guid":{"rendered":"\/\/m.iemloyee.com\/?p=220263"},"modified":"2021-04-07T20:45:44","modified_gmt":"2021-04-07T12:45:44","slug":"%e6%82%89%e5%b0%bc%e5%a4%a7%e5%ad%a6%e5%bb%96%e6%99%93%e8%88%9f%e6%95%99%e6%8e%88%e8%af%be%e9%a2%98%e7%bb%84nat-commun-%ef%bc%9a%e9%93%81%e7%94%b5%e9%80%80%e5%8c%96%e7%9a%84%e5%be%ae%e8%a7%82","status":"publish","type":"post","link":"\/\/m.iemloyee.com\/?p=220263","title":{"rendered":"\u6089\u5c3c\u5927\u5b66\u5ed6\u6653\u821f\u6559\u6388\u8bfe\u9898\u7ec4Nat.\u00a0Commun.\uff1a\u94c1\u7535\u9000\u5316\u7684\u5fae\u89c2\u673a\u5236"},"content":{"rendered":"<p><strong>\u3010\u5f15\u8a00\u3011<\/strong><\/p>\n<p>\u94c1\u7535\u6750\u6599\u5728\u7eb3\u7c73\u7535\u5b50\u5668\u4ef6\u4e2d\u7684\u5730\u4f4d\u8d8a\u6765\u8d8a\u91cd\u8981\uff0c\u7136\u800c\u7531\u5faa\u73af\u7535\u573a\u52a0\u8f7d\u5bfc\u81f4\u7684\u6781\u5316\u7ffb\u8f6c\u5931\u6548\u95ee\u9898\uff0c\u5373\u94c1\u7535\u9000\u5316\uff0c\u5236\u7ea6\u7740\u57fa\u4e8e\u94c1\u7535\u6750\u6599\u7684\u7eb3\u7c73\u7535\u5b50\u5668\u4ef6\u7684\u53d1\u5c55\u3002\u94c1\u7535\u9000\u5316\u4f1a\u6539\u53d8\u94c1\u7535\u6750\u6599\u7684\u8bf8\u591a\u7269\u7406\u6027\u80fd\uff0c\u5305\u62ec\u77eb\u987d\u573a\uff0c\u5269\u4f59\u6781\u5316\u5f3a\u5ea6\u7b49\uff0c\u5bfc\u81f4\u94c1\u7535\u6750\u6599\u4f7f\u7528\u5bff\u547d\u7684\u7f29\u77ed\uff0c\u5f71\u54cd\u4e86\u7eb3\u7c73\u7535\u5b50\u5668\u4ef6\u7684\u53ef\u9760\u6027\u548c\u7a33\u5b9a\u6027\u3002\u968f\u7740\u94c1\u7535\u6750\u6599\u5728\u7eb3\u7c73\u7535\u5b50\u5668\u4ef6\u4e2d\u7684\u9700\u6c42\u8d8a\u6765\u8d8a\u9ad8\uff0c\u5bf9\u4e8e\u5faa\u73af\u7535\u573a\u52a0\u8f7d\u5bfc\u81f4\u7684\u94c1\u7535\u9000\u5316\u95ee\u9898\u7684\u7814\u7a76\u53d8\u5f97\u8feb\u5728\u7709\u776b\u3002<\/p>\n<p><strong>\u3010\u6210\u679c\u7b80\u4ecb\u3011<\/strong><\/p>\n<p>\u8fd1\u65e5\uff0c\u6fb3\u5927\u5229\u4e9a<strong><b>\u6089\u5c3c\u5927\u5b66\u5ed6\u6653\u821f\u6559\u6388<\/b><\/strong>\uff08\u5171\u540c\u901a\u8baf\u4f5c\u8005\uff09\u8bfe\u9898\u7ec4\u7684\u9ec4\u828a\u851a\u535a\u58eb\uff08\u7b2c\u4e00\u4f5c\u8005\uff09\u548c\u9648\u5b50\u658c\u535a\u58eb\uff08\u5171\u540c\u901a\u8baf\u4f5c\u8005\uff09\u7b49\u4eba\u5728\u56fd\u9645\u9876\u7ea7\u671f\u520a<strong><b>Nature Communications<\/b><\/strong>\u671f\u520a\u4e0a\u53d1\u8868\u4e86\u9898\u4e3a<strong><b>Direct observation of nanoscale dynamics of ferroelectric degradation<\/b><\/strong>\u7684\u8bba\u6587\u3002\u5728\u8fd9\u9879\u5de5\u4f5c\u4e2d\uff0c\u4f5c\u8005\u9996\u6b21\u62a5\u9053\u4e86\u7531\u5faa\u73af\u7535\u573a\u52a0\u8f7d\u5bfc\u81f4\u7684\u94c1\u7535\u9000\u5316\u7684\u5fae\u89c2\u673a\u5236\u3002\u6587\u7ae0\u4f5c\u8005\u4f7f\u7528\u57fa\u4e8eMEMS\u82af\u7247\u7684\u539f\u4f4d\u900f\u5c04\u7535\u5b50\u663e\u5fae\u6280\u672f\u5bf9\u5355\u6676\u94c1\u7535\u6750\u6599Pb(Mg<sub>1\/3<\/sub>Nb<sub>2\/3<\/sub>)O<sub>3<\/sub>-0.38PbTiO<sub>3<\/sub>\uff08PMN-0.38PT\uff09\u5b9e\u65f6\u89c2\u6d4b\u5728\u5faa\u73af\u7535\u573a\u52a0\u8f7d\u4e0b\u94c1\u7535\u7574\u7ed3\u6784\u7684\u6f14\u5316\u3002\u4ed6\u4eec\u53d1\u73b0\u968f\u7740\u7535\u573a\u52a0\u8f7d\u5468\u6b21\u7684\u589e\u52a0\uff0c\u5728\u6837\u54c1\u521d\u59cb90\u00b0\u7574\u58c1\u5904\u51fa\u73b0\u4e86\u65b0\u7574\u3002\u9009\u533a\u7535\u5b50\u884d\u5c04\u8bc1\u5b9e\u4e86\u8fd9\u4e9b\u65b0\u7574\u7684\u6781\u5316\u65b9\u5411\u4e3a\u9762\u5916\uff0c\u5373\u5782\u76f4\u4e8e\u521d\u59cb90\u00b0\u7574\u7684\u7574\u5411\u3002\u8fdb\u4e00\u6b65\u7814\u7a76\u8868\u660e\uff0c\u5faa\u73af\u7535\u573a\u52a0\u8f7d\u4e0b\u94c1\u7535\u7574\u58c1\u5904\u7535\u8377\u5bc6\u5ea6\u7684\u589e\u52a0\u5bfc\u81f4\u4e86\u8fd9\u4e9b\u65b0\u7574\u7684\u5f62\u6210\u548c\u957f\u5927\u3002\u7574\u58c1\u5904\u4ea7\u751f\u7684\u7535\u8377\u5bf9\u65b0\u7574\u7684\u6781\u5316\u7535\u8377\u5f62\u6210\u8865\u507f\uff0c\u7a33\u5b9a\u4e86\u8fd9\u4e9b\u65b0\u7574\uff0c\u800c\u8fd9\u4e9b\u65b0\u7574\u5bf9\u5916\u52a0\u7535\u573a\u4e0d\u518d\u54cd\u5e94\uff0c\u5bfc\u81f4\u4e86\u94c1\u7535\u9000\u5316\u7684\u53d1\u751f\u3002\u8fd9\u4e2a\u53d1\u73b0\u5728\u7eb3\u7c73\u5c3a\u5ea6\u4e0a\u63ed\u793a\u4e86\u94c1\u7535\u9000\u5316\u7684\u4e00\u4e2a\u673a\u5236\uff0c\u5bf9\u94c1\u7535\u6750\u6599\u7684\u7574\u58c1\uff0c\u754c\u9762\u4e43\u81f3\u8fb9\u754c\u5904\u5728\u5faa\u73af\u7535\u573a\u4e0b\u94c1\u7535\u7574\u7ffb\u8f6c\u884c\u4e3a\u4f5c\u51fa\u4e86\u6df1\u5ea6\u89e3\u8bfb\u3002<\/p>\n<p><strong>\u3010\u56fe\u6587\u5bfc\u8bfb\u3011<\/strong><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-220264 size-full aligncenter\" src=\"\/\/m.iemloyee.com\/wp-content\/uploads\/2021\/04\/Picture-1.png\" alt=\"\" width=\"600\" height=\"335\" srcset=\"\/\/m.iemloyee.com\/wp-content\/uploads\/2021\/04\/Picture-1.png 600w, \/\/m.iemloyee.com\/wp-content\/uploads\/2021\/04\/Picture-1-300x168.png 300w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/p>\n<p>\u56fe1. \u539f\u4f4dTEM\u7684\u5b9e\u9a8c\u88c5\u7f6e\u793a\u610f\u56fe\u548c\u539f\u59cb<strong><em><b><i>a<\/i><\/b><\/em><\/strong><strong><em><sub><b><i>1<\/i><\/b><\/sub><\/em><\/strong><strong><b>\/<\/b><\/strong><strong><em><b><i>a<\/i><\/b><\/em><\/strong><strong><em><sub><b><i>2<\/i><\/b><\/sub><\/em><\/strong><strong><b>\u00a0<\/b><\/strong>90\u00b0\u7574\u7684\u786e\u5b9a\u3002a\u00a0\u5b9e\u9a8c\u88c5\u7f6e\u793a\u610f\u56fe\u3002\u805a\u7126\u79bb\u5b50\u675f\u5236\u5907\u7684PMN-0.38PT\u6837\u54c1\u88ab\u56fa\u5b9a\u5728\u4e24\u94c2\u7535\u6781\u4e4b\u95f4\u3002\u5faa\u73af\u7535\u573a\u6cbf\u7740\u6837\u54c1\u7684 \u00b1\u00a0[100]\u6676\u5411\u88ab\u65bd\u52a0\u5230\u6837\u54c1\u4e0a\u3002\u56fe\u4e2d\u9ec4\u8272\uff0c\u7d2b\u8272\u548c\u84dd\u8272\u7bad\u5934\u4ee3\u8868<em><i>a<\/i><\/em><em><sub><i>1<\/i><\/sub><\/em>\u00a0(<em><i>a<\/i><\/em><em><sub><i>1<\/i><\/sub><\/em><em><sup><i>+<\/i><\/sup><\/em>\/<em><i>a<\/i><\/em><em><sub><i>1<\/i><\/sub><\/em><em><sup><i>&#8211;<\/i><\/sup><\/em>), <em><i>a<\/i><\/em><em><sub><i>2<\/i><\/sub><\/em>\u00a0(<em><i>a<\/i><\/em><em><sub><i>2<\/i><\/sub><\/em><em><sup><i>+<\/i><\/sup><\/em>\/<em><i>a<\/i><\/em><em><sub><i>2<\/i><\/sub><\/em><em><sup><i>&#8211;<\/i><\/sup><\/em>) \u548c\u00a0<em><i>c<\/i><\/em>\u00a0(<em><i>c<\/i><\/em><em><sup><i>+<\/i><\/sup><\/em>\/<em><i>c<\/i><\/em><em><sup><i>&#8211;<\/i><\/sup><\/em>)\u7574\u7684\u6781\u5316\u65b9\u5411\uff0c\u5206\u522b\u4e3a\u6cbf\u7740\u00b1 [100], \u00b1 [010] and \u00b1 [001]\u7684\u65b9\u5411\u3002b\u548cc\u00a0PMN-0.38PT \u4e2d90\u00b0\u6761\u5e26\u7574\u7684TEM\u56fe\u4ee5\u53ca\u76f8\u5bf9\u5e94\u7684\u7535\u5b50\u884d\u5c04\u82b1\u6837\u56fe\u3002d\u548ce\u00a0<em><i>a<\/i><\/em><em><sub><i>1<\/i><\/sub><\/em>\/<em><i>a<\/i><\/em><em><sub><i>2<\/i><\/sub><\/em>\u7574\u5728[001]\u65b9\u5411\u6295\u5f71\u7684\u6676\u683c\u793a\u610f\u56fe\u4ee5\u53ca\u76f8\u5bf9\u5e94\u7684\u7535\u5b50\u884d\u5c04\u82b1\u6837\u793a\u610f\u56fe\u3002\u4ec5\u51ed\u501f\u7535\u5b50\u884d\u5c04\u82b1\u6837\u56fe\u5e76\u4e0d\u80fd\u533a\u5206\u5b9e\u9a8c\u4e2d\u7684<em><i>a<\/i><\/em><em><sub><i>1<\/i><\/sub><\/em>\/<em><i>a<\/i><\/em><em><sub><i>2<\/i><\/sub><\/em>\u7574\u4e3a<em><i>a<\/i><\/em><em><sub><i>1<\/i><\/sub><\/em><em><sup><i>+<\/i><\/sup><\/em>\/<em><i>a<\/i><\/em><em><sub><i>2<\/i><\/sub><\/em><em><sup><i>+<\/i><\/sup><\/em>\u7574\u8fd8\u662f<em><i>a<\/i><\/em><em><sub><i>1<\/i><\/sub><\/em><em><sup><i>&#8211;<\/i><\/sup><\/em>\/<em><i>a<\/i><\/em><em><sub><i>2<\/i><\/sub><\/em><em><sup><i>&#8211;<\/i><\/sup><\/em>\u7574\u3002\u6839\u636e<em><i>a<\/i><\/em><em><sub><i>1<\/i><\/sub><\/em>\u7574\u5728\u6b63\u8d1f\u7535\u573a\u4e0b\u7684\u7ffb\u8f6c\u884c\u4e3a\u8fdb\u4e00\u6b65\u786e\u5b9a\uff0c\u5b9e\u9a8c\u4e2d\u7684<em><i>a<\/i><\/em><em><sub><i>1<\/i><\/sub><\/em>\/<em><i>a<\/i><\/em><em><sub><i>2<\/i><\/sub><\/em>\u7574\u4e3a<em><i>a<\/i><\/em><em><sub><i>1<\/i><\/sub><\/em><em><sup><i>+<\/i><\/sup><\/em>\/<em><i>a<\/i><\/em><em><sub><i>2<\/i><\/sub><\/em><em><sup><i>+<\/i><\/sup><\/em>\u7574\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-220267 size-full\" src=\"\/\/m.iemloyee.com\/wp-content\/uploads\/2021\/04\/Picture-15.png\" alt=\"\" width=\"600\" height=\"421\" srcset=\"\/\/m.iemloyee.com\/wp-content\/uploads\/2021\/04\/Picture-15.png 600w, \/\/m.iemloyee.com\/wp-content\/uploads\/2021\/04\/Picture-15-300x211.png 300w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/p>\n<p>\u56fe2. \u5faa\u73af\u7535\u573a\u52a0\u8f7d\u4e0bc\u7574\u7684\u5f62\u6210\u3002a\u00a0PMN-0.38PT\u7684\u7574\u7ed3\u6784\u5728\u5faa\u73af\u7535\u573a\u4e0b\u6f14\u5316\u7684\u884d\u5c04\u886c\u5ea6\u56fe\u4ee5\u53ca\u5bf9\u5e94\u7684\u793a\u610f\u56fe\u3002\u7c89\u8272\u53cc\u7bad\u5934\u4ee3\u8868\u7535\u573a\u65bd\u52a0\u65b9\u5411\u3002b\u548cc\u00a0\u56fea\u4e2d\u7eff\u8272\u548c\u7ea2\u8272\u5708\u5185\u7684\u7574\u7684\u7535\u5b50\u884d\u5c04\u82b1\u6837\u56fe\uff0c\u4e24\u5e45\u56fe\u4e2d\u7684\u884d\u5c04\u6591\u70b9\u5206\u522b\u5f80[100]<sup>*<\/sup>\u00a0\u548c [010]<sup>*<\/sup>\u00a0\u65b9\u5411\u5206\u7acb\u3002d\u548ce<em><i>\u00a0\u00a0a<\/i><\/em><em><sub><i>1<\/i><\/sub><\/em><em><sup><i>+<\/i><\/sup><\/em>\/<em><i>c<\/i><\/em>\u00a0\u548c\u00a0<em><i>a<\/i><\/em><em><sub><i>2<\/i><\/sub><\/em><em><sup><i>+<\/i><\/sup><\/em>\/<em><i>c<\/i><\/em>\u7574\u5728[001]\u65b9\u5411\u6295\u5f71\u7684\u6676\u683c\u793a\u610f\u56fe\u4ee5\u53ca\u76f8\u5bf9\u5e94\u7684\u7535\u5b50\u884d\u5c04\u82b1\u6837\u793a\u610f\u56fe\u3002f\u00a0c\u7574\u6295\u5f71\u9762\u79ef\u968f\u7740\u5faa\u73af\u7535\u573a\u6b21\u6570\u589e\u52a0\u5448\u6307\u6570\u589e\u957f\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-220265 size-full\" src=\"\/\/m.iemloyee.com\/wp-content\/uploads\/2021\/04\/Picture-2-1.png\" alt=\"\" width=\"600\" height=\"740\" srcset=\"\/\/m.iemloyee.com\/wp-content\/uploads\/2021\/04\/Picture-2-1.png 600w, \/\/m.iemloyee.com\/wp-content\/uploads\/2021\/04\/Picture-2-1-243x300.png 243w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/p>\n<p>\u56fe3. 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