{"id":239267,"date":"2022-07-06T05:20:54","date_gmt":"2022-07-05T21:20:54","guid":{"rendered":"\/\/m.iemloyee.com\/?p=239267"},"modified":"2022-07-05T17:21:30","modified_gmt":"2022-07-05T09:21:30","slug":"%e9%93%81%e7%94%b5%e6%9d%90%e6%96%99%e6%9c%80%e6%96%b0nat-mater-y%e6%8e%ba%e6%9d%82hfo2%e8%96%84%e8%86%9c%e7%9a%84%e6%9c%ac%e5%be%81%e9%93%81%e7%94%b5%e6%80%a7","status":"publish","type":"post","link":"\/\/m.iemloyee.com\/?p=239267","title":{"rendered":"\u94c1\u7535\u6750\u6599\u6700\u65b0Nat.Mater.-Y\u63ba\u6742HfO2\u8584\u819c\u7684\u672c\u5f81\u94c1\u7535\u6027"},"content":{"rendered":"<p style=\"text-align: center;\">\u4e00\u3010\u5bfc\u8bfb\u3011<\/p>\n<p>\u94c1\u7535\u6750\u6599\u662f\u4e00\u7c7b\u7279\u6b8a\u7684\u538b\u7535\u6750\u6599\u3002\u5bf9\u4e8e\u538b\u7535\u6750\u6599\uff0c\u4e00\u65b9\u9762\uff0c\u5728\u5e94\u529b\u4f5c\u7528\u4e0b\uff0c\u538b\u7535\u6750\u6599\u80fd\u4ea7\u751f\u7535\u8377\uff1b\u53e6\u4e00\u65b9\u9762\uff0c\u5728\u7535\u573a\u4f5c\u7528\u4e0b\uff0c\u538b\u7535\u6750\u6599\u80fd\u4ea7\u751f\u5e94\u529b\u3002\u94c1\u7535\u6750\u6599\u5219\u66f4\u4e3a\u7a81\u51fa\u2014\u2014\u5728\u538b\u7535\u6750\u6599\u4e2d\u5177\u6709\u6700\u5927\u7684\u7535\u573a\u54cd\u5e94\uff0c\u662f\u4e00\u7c7b\u5f00\u5173\u6750\u6599\u3002\u94c1\u7535\u6750\u6599\u62e5\u6709\u80fd\u591f\u5728\u5916\u52a0\u7535\u573a\u4f5c\u7528\u4e0b\u53cd\u8f6c\u7684\u81ea\u53d1\u6781\u5316\uff0c\u8fd9\u79cd\u4e24\u6781\u6001\u6216\u591a\u6781\u6001\u4e4b\u95f4\u7684\u53ef\u9006\u6781\u5316\u8f6c\u53d8\u4f7f\u5f97\u5b83\u4eec\u6709\u671b\u5728\u73b0\u4ee3\u7535\u5b50\u5b66\u4e2d\u5f97\u5230\u5e94\u7528\uff0c\u5728\u6570\u636e\u5b58\u50a8\u3001\u4f20\u611f\u5668\u3001\u9a71\u52a8\u5668\u7b49\u65b9\u9762\u6709\u7740\u5e7f\u6cdb\u7684\u5e94\u7528\u524d\u666f\u3002\u7136\u800c\uff0c\u4f20\u7edf\u7684\u6c27\u5316\u7269ABO<sub>3<\/sub>\u9499\u949b\u77ff\u94c1\u7535\u6750\u6599\u4e0e\u73b0\u4ee3\u7845\u57fa\u534a\u5bfc\u4f53\u5de5\u827a\u7684\u4f4e\u517c\u5bb9\u6027\u4ee5\u53ca\u5bf9\u6c89\u79ef\u539a\u5ea6\u7684\u8f83\u9ad8\u9700\u6c42\uff0c\u6781\u5927\u9650\u5236\u4e86\u94c1\u7535\u6750\u6599\u7684\u5e94\u7528\u548c\u53d1\u5c55\u3002\u8fd1\u5e74\u6765\uff0c\u6c27\u5316\u94ea\uff08HfO<sub>2<\/sub>\uff09\u57fa\u94c1\u7535\u6750\u6599\u56e0\u5176\u4e0e\u73b0\u4ee3\u534a\u5bfc\u4f53\u5de5\u827a\u7684\u517c\u5bb9\u6027\u4ee5\u53ca\u4f4e\u539a\u5ea6\u4e0b\uff08\u5c0f\u4e8e10\u7eb3\u7c73\uff09\u7a33\u5b9a\u7684\u94c1\u7535\u6027\uff0c\u5728\u5c06\u94c1\u7535\u5e7f\u6cdb\u96c6\u6210\u5230\u73b0\u4ee3\u7535\u5b50\u4ea7\u54c1\u4e2d\u5177\u6709\u5de8\u5927\u6f5c\u529b\uff0c\u5f15\u8d77\u4e86\u5e7f\u6cdb\u7684\u5173\u6ce8\u3002\u7136\u800c\uff0cHfO<sub>2<\/sub>\u7684\u94c1\u7535\u76f8\uff08\u6b63\u4ea4\u76f8\uff09\u662f\u4e9a\u7a33\u76f8\uff0c\u8fd9\u4f7f\u5f97\u5982\u4f55\u7a33\u5b9aHfO<sub>2<\/sub>\u7684\u94c1\u7535\u76f8\u6210\u4e3a\u4e00\u4e2a\u6311\u6218\u3002\u5176\u4e2d\uff0c\u5229\u7528\u6b63\u4ea4\u76f8\u8f83\u4f4e\u7684\u8868\u9762\u80fd\uff0c\u901a\u8fc7\u51cf\u5c0f\u6676\u7c92\u5c3a\u5bf8\u6765\u7a33\u5b9a\u94c1\u7535\u76f8\u662f\u4e00\u79cd\u5e38\u7528\u7684\u65b9\u6cd5\u3002\u4f46\u662f\uff0c\u8fd9\u79cd\u65b9\u6cd5\u5f15\u5165\u4e86\u66f4\u591a\u7684\u7f3a\u9677\uff0c\u4e0d\u4f46\u4f7f\u5f97HfO<sub>2<\/sub>\u7684\u94c1\u7535\u6781\u5316\u8fdc\u4f4e\u4e8e\u7406\u8bba\u503c\uff0c\u4e5f\u963b\u788d\u4e86\u6211\u4eec\u5bf9HfO<sub>2<\/sub>\u672c\u5f81\u6027\u80fd\u7684\u4e86\u89e3\u3002<\/p>\n<p style=\"text-align: center;\">\u4e8c\u3010\u6210\u679c\u63a0\u5f71\u3011<\/p>\n<p>\u8fd1\u65e5\uff0c\u7f8e\u56fd\u5185\u5e03\u62c9\u65af\u52a0\u5927\u5b66\u6797\u80af\u5206\u6821\u8bb8\u6653\u5c71\u3001Alexei Gruverman\u4e0eEvgeny Y. Tsymbal\u56e2\u961f\u5229\u7528\u6fc0\u5149\u8109\u51b2\u6c89\u79ef\u6280\u672f\u5236\u5907\u4e86\u9ad8\u8d28\u91cfHfO<sub>2<\/sub>\u5916\u5ef6\u8584\u819c\uff0c\u89c2\u6d4b\u5230\u4e86\u4e0e\u7406\u8bba\u8ba1\u7b97\u63a5\u8fd1\u7684\u94c1\u7535\u6781\u5316\uff0c\u63ed\u793a\u4e86\u8584\u819c\u7ed3\u6676\u6027\u548c\u6676\u7c92\u5c3a\u5bf8\u4e0e\u94c1\u7535\u6781\u5316\u7684\u6b63\u76f8\u5173\u6027\uff0c\u8868\u5f81\u4e86\u8584\u819c\u4e2d\u5171\u5b58\u7684\u6b63\u4ea4\u76f8\u548c\u83f1\u5f62\u7578\u53d8\uff0c\u5e76\u63a2\u7d22\u4e86\u83f1\u5f62\u7578\u53d8\u5bf9\u94c1\u7535\u6027\u80fd\u7684\u5f71\u54cd\uff0c\u8bc1\u660e\u4e86\u5728\u5177\u6709\u9ad8\u7ed3\u6784\u6709\u5e8f\u5ea6\uff08\u7ed3\u6676\u5ea6\uff09\u7684HfO<sub>2<\/sub>\u5916\u5ef6\u8584\u819c\u4e2d\u53ef\u4ee5\u5b9e\u73b0\u7a33\u5b9a\u548c\u589e\u5f3a\u7684\u6781\u5316\u3002\u5728\u5ba4\u6e29\u4e0b\uff0cY\u63ba\u6742HfO<sub>2<\/sub>(111)\u5916\u5ef6\u8584\u819c\u7684\u9762\u5916\u6781\u5316\u503c\u4e3a50\u2009\u03bcC cm<sup>-2<\/sup>\uff0c\u4f30\u8ba1\u672c\u5f81\u6781\u5316(\u4f4e\u6e29\u4e0b)\u6cbfHfO<sub>2<\/sub> (001)\u7684\u5168\u503c\u4e3a64\u2009\u03bcC\u2009cm<sup>-2<\/sup>\uff0c\u4e0e\u5bc6\u5ea6\u6cdb\u51fd\u7406\u8bba\u8ba1\u7b97\u7ed3\u679c\u4e00\u81f4\u3002\u8584\u819c\u7684\u6676\u4f53\u7ed3\u6784\u8868\u5f81\u63ed\u793a\u4e86\u8584\u819c\u5177\u6709\u5f31\u83f1\u5f62\u7578\u53d8\u7684Pca2<sub>1<\/sub>\u6b63\u4ea4\u6676\u76f8\uff0c\u5f3a\u8c03\u4e86\u7ed3\u6784\u7ea6\u675f\u673a\u5236\u5728\u7a33\u5b9a\u94c1\u7535\u76f8\u4e2d\u7684\u4f5c\u7528\u3002\u7ed3\u679c\u8868\u660e\uff0c\u53ef\u4ee5\u5229\u7528HfO<sub>2<\/sub>\u57fa\u6750\u6599\u7684\u56fa\u6709\u94c1\u7535\u6027\uff0c\u4f18\u5316\u5176\u5728\u200b\u200b\u5668\u4ef6\u5e94\u7528\u4e2d\u7684\u6027\u80fd\u3002\u8be5\u8bba\u6587\u4ee5\u201cIntrinsic ferroelectricity in Y-doped HfO2 thin films\u201d\u4e3a\u9898\u53d1\u8868\u5728\u56fd\u9645\u77e5\u540d\u671f\u520aNature Materials\u4e0a\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-239268\" src=\"\/\/m.iemloyee.com\/wp-content\/uploads\/2022\/07\/0.png\" alt=\"\" width=\"1047\" height=\"407\" srcset=\"\/\/m.iemloyee.com\/wp-content\/uploads\/2022\/07\/0.png 1047w, \/\/m.iemloyee.com\/wp-content\/uploads\/2022\/07\/0-300x117.png 300w, \/\/m.iemloyee.com\/wp-content\/uploads\/2022\/07\/0-768x299.png 768w, \/\/m.iemloyee.com\/wp-content\/uploads\/2022\/07\/0-1024x398.png 1024w\" sizes=\"(max-width: 1047px) 100vw, 1047px\" \/><\/p>\n<p style=\"text-align: center;\">\u4e09\u3010\u6838\u5fc3\u521b\u65b0\u70b9\u3011<\/p>\n<p>1 \u5728\u5236\u5907\u7684\u9ad8\u8d28\u91cfHfO<sub>2<\/sub>\u5916\u5ef6\u8584\u819c\u4e2d\u89c2\u6d4b\u5230\u4e86\u4e0e\u7406\u8bba\u8ba1\u7b97\u63a5\u8fd1\u7684\u94c1\u7535\u6781\u5316\uff0c\u63ed\u793a\u4e86\u8584\u819c\u7ed3\u6676\u6027\u548c\u6676\u7c92\u5c3a\u5bf8\u4e0e\u94c1\u7535\u6781\u5316\u7684\u6b63\u76f8\u5173\u6027\u3002<\/p>\n<p>2 \u8bc1\u660e\u4e86\u5728\u5177\u6709\u9ad8\u7ed3\u6676\u5ea6\u7684HfO<sub>2<\/sub>\u5916\u5ef6\u8584\u819c\u4e2d\u53ef\u4ee5\u5b9e\u73b0\u7a33\u5b9a\u548c\u589e\u5f3a\u7684\u6781\u5316\u3002<\/p>\n<p>3 \u63d0\u51fa\u4e86\u5982\u4f55\u533a\u5206HfO<sub>2<\/sub>\u7684\u6b63\u4ea4\u76f8\u548c\u83f1\u5f62\u76f8\u7684\u65b9\u6cd5\uff0c\u8ba1\u7b97\u4e86\u83f1\u5f62\u7578\u53d8\u5bf9HfO<sub>2<\/sub>\u94c1\u7535\u6027\u80fd\u7684\u5f71\u54cd\u3002<\/p>\n<p style=\"text-align: center;\">\u56db\u3010\u6570\u636e\u6982\u89c8\u3011<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-239269\" src=\"\/\/m.iemloyee.com\/wp-content\/uploads\/2022\/07\/1.png\" alt=\"\" width=\"1269\" height=\"748\" srcset=\"\/\/m.iemloyee.com\/wp-content\/uploads\/2022\/07\/1.png 1269w, \/\/m.iemloyee.com\/wp-content\/uploads\/2022\/07\/1-300x177.png 300w, \/\/m.iemloyee.com\/wp-content\/uploads\/2022\/07\/1-768x453.png 768w, \/\/m.iemloyee.com\/wp-content\/uploads\/2022\/07\/1-1024x604.png 1024w\" sizes=\"(max-width: 1269px) 100vw, 1269px\" \/><\/p>\n<p style=\"text-align: center;\">\u56fe1 YHO\u8584\u819c\u7684\u7ed3\u6784\u548c\u94c1\u7535\u6027\u80fd\u7684\u8868\u5f81<\/p>\n<p>a\uff0c\u5177\u6709\u5411\u4e0b\u6781\u5316\u7684Pca2<sub>1<\/sub>\u7a7a\u95f4\u7fa4\u7684HfO<sub>2<\/sub>\u7684\u6676\u4f53\u7ed3\u6784\u3002b\uff0c\u5728LSMO(001)\/STO(001)\u548cLSMO(110)\/STO(110)\u4e0a\u751f\u957f\u7684YHO(111)\u7684\u03c9\u20132\u03b8 XRD \u626b\u63cf\u3002C,\u5728300\u2009K\u6d4b\u91cf\u7684YHO(111)\/LSMO(001)\/STO(001)\uff08\u84dd\u8272\uff09\u548c YHO(111)\/LSMO(110)\/STO(110)\uff08\u7ea2\u8272\uff09\u7684\u5178\u578b P-V \u73af\u3002d\uff0cYHO(111)\u5cf0\u7684\u6447\u6446\u66f2\u7ebf\u3002e\uff0cYHO\/LSMO\/STO(001)\u8584\u819c\u7684\u5927\/\u5c0f\u6676\u7c92\u6bd4\uff08\u6b63\u65b9\u5f62\uff09\u548c\u5269\u4f59\u6781\u5316\uff08Pr\uff09\uff08\u84dd\u8272\u5706\u5708\uff09\u7684\u751f\u957f\u6e29\u5ea6\u4f9d\u8d56\u6027\u3002f\uff0cP<sub>r<\/sub>\u4f5c\u4e3a LSMO(001)\/STO(001)\uff08\u4e09\u89d2\u5f62\uff09\u548c LSMO(110) \u4e0a YHO(111) \u5728 20\u2009K\uff08\u84dd\u8272\uff09\u548c 300\u2009K\uff08\u7ea2\u8272\uff09\u5904\u7684\u5c16\u5cf0\/\u5bbd\u5cf0\u9762\u79ef\u6bd4\u7684\u51fd\u6570 \/STO(110)\uff08\u6b63\u65b9\u5f62\uff09\u3002 \u8bef\u5dee\u6761\u8868\u793aP<sub>r<\/sub>\u503c\u7684\u8bef\u5dee\uff0c\u8be5\u8bef\u5dee\u662f\u901a\u8fc7\u5bf9\u6bcf\u4e2a\u6837\u672c\u4e2d\u4e24\u4e2a\u4e0d\u540c\u7535\u5bb9\u5668\u7684\u591a\u6b21\u6d4b\u91cf\u7684\u7edf\u8ba1\u5206\u6790\u8ba1\u7b97\u5f97\u51fa\u7684\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-239270\" src=\"\/\/m.iemloyee.com\/wp-content\/uploads\/2022\/07\/2.png\" alt=\"\" width=\"1032\" height=\"991\" srcset=\"\/\/m.iemloyee.com\/wp-content\/uploads\/2022\/07\/2.png 1032w, \/\/m.iemloyee.com\/wp-content\/uploads\/2022\/07\/2-300x288.png 300w, \/\/m.iemloyee.com\/wp-content\/uploads\/2022\/07\/2-768x737.png 768w, \/\/m.iemloyee.com\/wp-content\/uploads\/2022\/07\/2-1024x983.png 1024w\" sizes=\"(max-width: 1032px) 100vw, 1032px\" \/><\/p>\n<p style=\"text-align: center;\">\u56fe2\u00a0 YHO\u8584\u819c\u7684\u8868\u9762\u5f62\u8c8c\u548cPFM \u8868\u5f81<\/p>\n<p>+6\u548c\u20137\u2009V\u6781\u5316\u540ePFM\u56fe\u50cf\u7684\u632f\u5e45 (a) \u548c\u76f8\u4f4d (b)\uff0c\u5c55\u793a\u4e86\u7a33\u5b9a\u7684\u53cc\u6781\u5269\u4f59\u6781\u5316\u72b6\u6001\u3002c\uff0cYHO(111)\/LSMO(001)\u8584\u819c\u8868\u9762\u7684\u539f\u5b50\u529b\u663e\u5fae\u955c\u56fe\u50cf\uff0c\u5c55\u793a\u4e86\u9636\u68af\u5f0f\u5f62\u8c8c\u3002d\uff0c\u76f8\u4f4d\u548c\u5e45\u5ea6\u5207\u6362\u8c31\u56de\u8def\uff0c\u5c55\u793a\u4e86\u88f8\u9732\u8868\u9762\u4e0a\u7684\u7c7b\u94c1\u7535\u6ede\u540e\u73b0\u8c61\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-239271\" src=\"\/\/m.iemloyee.com\/wp-content\/uploads\/2022\/07\/3.png\" alt=\"\" width=\"1508\" height=\"1232\" srcset=\"\/\/m.iemloyee.com\/wp-content\/uploads\/2022\/07\/3.png 1508w, \/\/m.iemloyee.com\/wp-content\/uploads\/2022\/07\/3-300x245.png 300w, \/\/m.iemloyee.com\/wp-content\/uploads\/2022\/07\/3-768x627.png 768w, \/\/m.iemloyee.com\/wp-content\/uploads\/2022\/07\/3-1024x837.png 1024w\" sizes=\"(max-width: 1508px) 100vw, 1508px\" \/><\/p>\n<p style=\"text-align: center;\">\u56fe3 YHO\u8584\u819c\u7684\u6e29\u5ea6\u4f9d\u8d56\u6027\u94c1\u7535\u6027\u80fd<\/p>\n<p>a,b\uff0c\u5728\u6700\u4f73\u6761\u4ef6\u4e0b\u751f\u957f\u7684(a)YHO(111)\/LSMO(001)\u548c(b)YHO(111)\/LSMO(110)\u572820\u2009K\u5230300\u2009K\u6e29\u5ea6\u8303\u56f4\u5185\u91c7\u7528\u6b63\u4e0a\u8d1f\u4e0b\u6cd5\u6d4b\u91cf\u7684\u94c1\u7535P-V \u56de\u8def\u3002c\uff0c\u5bf9\u4e8e\u5728\u6700\u4f73\u6761\u4ef6\u4e0b\u751f\u957f\u7684YHO(111)\/LSMO(001)\u548cYHO(111)\/LSMO(110)\uff0cP<sub>r<\/sub>\u4f5c\u4e3a\u6e29\u5ea6\u7684\u51fd\u6570\u3002\u8bef\u5dee\u6761\u8868\u793aP<sub>r<\/sub>\u503c\u7684\u4e0d\u786e\u5b9a\u6027\uff0c\u8be5\u4e0d\u786e\u5b9a\u6027\u662f\u901a\u8fc7\u5bf9\u6bcf\u4e2a\u6837\u672c\u4e2d\u4e24\u4e2a\u4e0d\u540c\u7535\u5bb9\u5668\u7684\u591a\u6b21\u6d4b\u91cf\u7684\u7edf\u8ba1\u5206\u6790\u8ba1\u7b97\u5f97\u51fa\u7684\u3002d\uff0c\u572820\u2009K\u4e0b\u6d4b\u91cf\u7684\u4e0d\u540c\u751f\u957f\u6e29\u5ea6YHO(111)\/LSMO(001)\u6837\u54c1\u7684P-V \u73af\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-239272\" src=\"\/\/m.iemloyee.com\/wp-content\/uploads\/2022\/07\/4.png\" alt=\"\" width=\"1270\" height=\"795\" srcset=\"\/\/m.iemloyee.com\/wp-content\/uploads\/2022\/07\/4.png 1270w, \/\/m.iemloyee.com\/wp-content\/uploads\/2022\/07\/4-300x188.png 300w, \/\/m.iemloyee.com\/wp-content\/uploads\/2022\/07\/4-768x481.png 768w, \/\/m.iemloyee.com\/wp-content\/uploads\/2022\/07\/4-1024x641.png 1024w\" sizes=\"(max-width: 1270px) 100vw, 1270px\" \/><\/p>\n<p style=\"text-align: center;\">\u56fe4 YHO\u8584\u819c\u7684\u7ed3\u6784\u8868\u5f81<\/p>\n<p>{002}<sub>pc<\/sub> (a)\u3001{001}<sub>pc<\/sub> (d)\u548c{110}<sub>pc<\/sub> (e)\u5e73\u9762\u7684\u884d\u5c04\u3002Hf\u539f\u5b50\u4e0ePca2<sub>1<\/sub> o\u76f8HfO2\u7684\u4f4d\u79fb\u6a21\u5f0f\u5bfc\u81f4{010}<sub>o<\/sub>\u5e73\u9762(b)\u548c{110}<sub>o<\/sub>\u5e73\u9762(c)\u7684\u884d\u5c04\u3002f\uff0c\u5ba4\u6e29\u4e0b\u6cbf[1-10]<sub>pc<\/sub>\u548c [11-2]<sub>pc<\/sub>\u65b9\u5411\u5728LSMO(110)\u4e0a\u751f\u957f\u7684YHO(111)\u7684RHEED\u884d\u5c04\u56fe\u6848\u3002g\uff0c(1-10)<sub>pc<\/sub>\u548c(11-2)<sub>pc<\/sub>\u6761\u7eb9\u7684RHEED\u5f3a\u5ea6\u7684\u6e29\u5ea6\u4f9d\u8d56\u6027\uff0c\u8868\u660e\u5728\u7ea6450\u00b0C\u65f6\u53d1\u751ft \u2192 o\u76f8\u53d8\u3002(h)YHO(111)\/LSMO(001)\u548c(i)YHO(111)\/LSMO(110)\u7684\u9762\u5185\u548c\u9762\u5916(OOP) {111}<sub>pc<\/sub>\u884d\u5c04\u3002\u03c6\uff0c\u65b9\u4f4d\u89d2\uff1b n\uff0c\u6574\u6570\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-239273\" src=\"\/\/m.iemloyee.com\/wp-content\/uploads\/2022\/07\/5.png\" alt=\"\" width=\"1508\" height=\"1155\" srcset=\"\/\/m.iemloyee.com\/wp-content\/uploads\/2022\/07\/5.png 1508w, \/\/m.iemloyee.com\/wp-content\/uploads\/2022\/07\/5-300x230.png 300w, \/\/m.iemloyee.com\/wp-content\/uploads\/2022\/07\/5-768x588.png 768w, \/\/m.iemloyee.com\/wp-content\/uploads\/2022\/07\/5-1024x784.png 1024w\" sizes=\"(max-width: 1508px) 100vw, 1508px\" \/><\/p>\n<p style=\"text-align: center;\">\u56fe5\u672a\u63ba\u6742\u548c5% Y\u63ba\u6742HfO<sub>2<\/sub>\u7684DFT\u8ba1\u7b97\u7ed3\u679c<\/p>\n<p style=\"text-align: left;\">a\uff0c\u603b\u80fd\u91cf\u7684\u53d8\u5316\u3002 b\uff0c\u5bf9\u4e8e\u672a\u63ba\u6742HfO<sub>2<\/sub>\uff08\u7ea2\u7ebf\u548c\u6b63\u65b9\u5f62\uff09\u548c 5%Y\u63ba\u6742HfO<sub>2<\/sub>\uff08\u84dd\u7ebf\u548c\u6b63\u65b9\u5f62\uff09\uff0c\u8ba1\u7b97\u7684\u6cbf c \u8f74\uff08\u6b63\u65b9\u5f62\uff09\u7684\u94c1\u7535\u6781\u5316\u5206\u91cf\u4f5c\u4e3a\u89d2\u5ea6\u03b1\u7684\u51fd\u6570\u3002 c\uff0cYHO(111) \u8584\u819c\u4e2do\u76f8\u7a33\u5b9a\u5316\u7684\u793a\u610f\u56fe\u3002<\/p>\n<p><strong>\u8bba\u6587\u94fe\u63a5\uff1a<\/strong><\/p>\n<p><a href=\"https:\/\/doi.org\/10.1038\/s41563-022-01282-6\">https:\/\/doi.org\/10.1038\/s41563-022-01282-6<\/a><\/p>\n<p>&nbsp;<\/p>\n<p style=\"text-align: center;\"><strong>\u4e94\u3010\u56e2\u961f\u4ecb\u7ecd\u3011<\/strong><\/p>\n<p><strong>\u8bb8\u6653\u5c71\u56e2\u961f<\/strong>\u4e3b\u8981\u4ece\u4e8b\u94c1\u7535\u548c\u591a\u94c1\u6c27\u5316\u7269\u548c\u6709\u673a\u94c1\u7535\u6750\u6599\u7684\u5236\u5907\uff0c\u4ee5\u53ca\u6676\u4f53\u7ed3\u6784\u3001\u94c1\u7535\u3001\u81ea\u65cb\u8f93\u8fd0\u3001\u78c1\u5149\u514b\u5c14\u3001\u94c1\u78c1\u3001\u78c1\u7535\u8026\u5408\u7b49\u6027\u80fd\u8868\u5f81\u3002\u6c27\u5316\u7269\u5916\u5ef6\u8584\u819c\u4e3b\u8981\u5229\u7528\u6fc0\u5149\u8109\u51b2\u6c89\u79ef\u65b9\u6cd5\u5236\u5907\uff0c\u5236\u5907\u7684\u6750\u6599\u5305\u62ecHfO2\u94c1\u7535\u8584\u819c\u3001\u516d\u89d2\u76f8\u7684\u9530\u6c27\u548c\u94c1\u6c27\u591a\u94c1\u8584\u819c\u3001\u4ee5\u53caNiCo2O4\u3001CoFe2O4\u7b49\u78c1\u6027\u6c27\u5316\u7269\u8584\u819c\u3002\u56e2\u961f\u4e0e\u56fd\u5bb6\u540c\u6b65\u8f90\u5c04\u5b9e\u9a8c\u5ba4\u957f\u671f\u5408\u4f5c\uff0c\u5177\u5907\u4e30\u5bcc\u7ecf\u9a8c\u3002\u5728\u672c\u5de5\u4f5c\u4e2d\uff0c\u8bb8\u6653\u5c71\u56e2\u961f\u4e3b\u8981\u8d1f\u8d23\u5236\u5907\u9ad8\u8d28\u91cf\u5916\u5ef6\u8584\u819c\uff0c\u901a\u8fc7\u8c03\u63a7\u751f\u957f\u6761\u4ef6\u548c\u751f\u957f\u57fa\u5e95\uff0c\u4f18\u5316\u4e86\u8584\u819c\u8d28\u91cf\uff1b\u901a\u8fc7\u5bf9\u8584\u819c\u7684\u6676\u4f53\u7ed3\u6784\u7684\u8868\u5f81\uff0c\u533a\u5206\u4e86\u5176\u4e2d\u7684\u6b63\u4ea4\u76f8\u548c\u83f1\u5f62\u7578\u53d8\uff0c\u5e76\u7ed3\u5408\u94c1\u7535\u6027\u80fd\u53d1\u73b0\u4e86\u7ed3\u6676\u6027\u548c\u94c1\u7535\u6027\u80fd\u7684\u6b63\u76f8\u5173\u6027\u3002<\/p>\n<p><strong>Alexei Gruverman\u56e2\u961f<\/strong>\u5bf9\u94c1\u7535\u6027\u80fd\u3001\u538b\u7535\u6027\u80fd\u548c\u94c1\u7535\u7574\u7ed3\u6784\u7684\u8868\u5f81\u6709\u7740\u975e\u5e38\u4e30\u5bcc\u7684\u7ecf\u9a8c\u3002\u66fe\u63d0\u51fapiezoresponse force microscopy(PFM)\u5e76\u4e14\u4e3a\u5176\u5b9e\u73b0\u505a\u51fa\u91cd\u5927\u8d21\u732e\u3002\u5728\u672c\u5de5\u4f5c\u4e2d\uff0c\u8be5\u56e2\u961f\u5bf9\u8584\u819c\u8868\u9762\u5f62\u8c8c\u3001\u538b\u7535\u54cd\u5e94\uff0c\u4ee5\u53ca\u6750\u6599\u7684\u7ffb\u8f6c\u901f\u5ea6\u548c\u94c1\u7535\u968f\u6e29\u5ea6\u7684\u4f9d\u8d56\u5173\u7cfb\u8fdb\u884c\u4e86\u5206\u6790\u8868\u5f81\u3002<\/p>\n<p><strong>Evgeny Y. Tsymbal\u56e2\u961f<\/strong>\u5728\u5229\u7528\u5bc6\u5ea6\u6cdb\u51fd\u7406\u8bba\uff08DFT\uff09\u7814\u7a76\u94c1\u7535\u4ee5\u53ca\u78c1\u6027\u6c27\u5316\u7269\u6709\u591a\u5e74\u7684\u7ecf\u9a8c\u548c\u4f17\u591a\u7684\u6210\u679c\u3002\u5728\u672c\u5de5\u4f5c\u4e2d\uff0c\u8be5\u56e2\u961f\u4e3b\u8981\u8ba1\u7b97\u4e86HfO2\u8584\u819c\u4e2d\u83f1\u5f62\u76f8\u7578\u53d8\u5bf9\u94c1\u7535\u6781\u5316\u7684\u5f71\u54cd\uff0c\u5bf9\u7406\u89e3\u4e0d\u540c\u6676\u76f8\u7684\u4f5c\u7528\u4ee5\u53ca\u63a2\u7d22\u6750\u6599\u7684\u672c\u5f81\u6027\u80fd\u63d0\u4f9b\u4e86\u5f3a\u5927\u7684\u7406\u8bba\u652f\u6491\u3002<\/p>\n<p><strong>\u56e2\u961f\u5728<\/strong><strong>HfO2<\/strong><strong>\u9886\u57df\u5185\u4e4b\u524d\u53d1\u8868\u7684\u5de5\u4f5c<\/strong>\uff1a<\/p>\n<p>[1] Yuke Zhang et al \u201cEffects of Strain and Film Thickness on the Stability of the Rhombohedral Phase of HfO2\u201d Phys. Rev. Applied 14, 014068 (2020).<\/p>\n<p>[2] Weitong Ding et al.\u201d The atomic-scale domain wall structure and motion in HfO2-based ferroelectrics: A first-principle study\u201d Acta Materialia 196 556\u2013564 (2020).<\/p>\n<p>[3] Pratyush Buragohain et al \u201cFluid Imprint and Inertial Switching in Ferroelectric La:HfO2 Capacitors\u201d ACS Appl. Mater. Interfaces 11, 38, 35115\u201335121 (2019).<\/p>\n<p>[4] Pratyush Buragohain et al. \u201cEffect of Film Microstructure on Domain Nucleation and Intrinsic Switching in Ferroelectric Y:HfO2 Thin Film Capacitors\u201d Adv. Funct. Mater. 4, 2108876 (2021).<\/p>\n<p>[5] Pratyush Buragohain et al. \u201cNanoscopic studies of domain structure dynamics in ferroelectric La:HfO2 capacitors\u201d Applied Physics Letters 112,222901 (2018).<\/p>\n<p>[6] Sangita Dutta et al. \u201cPiezoelectricity in hafnia\u201d Nat Commun 12, 7301 (2021).<\/p>\n<p><strong>\u76f8\u5173\u4f18\u8d28\u6587\u732e\u63a8\u8350\uff1a<\/strong><\/p>\n<p>[1] P. Nukala et al., \u201cReversible oxygen migration and phase transitions in hafnia-based ferroelectric devices\u201c Science 372, 630\u2013635 (2021).<\/p>\n<p>[2] H. J. Lee et al., \u201cScale-free ferroelectricity induced by flat phonon bands in HfO2\u201c Science 369, 1343\u20131347 (2020).<\/p>\n<p>[3] Mikolajick, T., Schroeder, U. Ferroelectricity in bulk hafnia. Nat. Mater. 20, 718\u2013719 (2021).<\/p>\n<p>[4] Schroeder, U., Park, M.H., Mikolajick, T. et al. The fundamentals and applications of ferroelectric HfO2. Nat Rev Mater (2022).<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e00\u3010\u5bfc\u8bfb\u3011 \u94c1\u7535\u6750\u6599\u662f\u4e00\u7c7b\u7279\u6b8a\u7684\u538b\u7535\u6750\u6599\u3002\u5bf9\u4e8e\u538b\u7535\u6750\u6599\uff0c\u4e00\u65b9\u9762\uff0c\u5728\u5e94\u529b\u4f5c\u7528\u4e0b\uff0c\u538b\u7535\u6750\u6599\u80fd\u4ea7\u751f\u7535\u8377\uff1b\u53e6\u4e00\u65b9\u9762\uff0c\u5728\u7535\u573a\u4f5c\u7528\u4e0b\uff0c\u538b\u7535\u6750\u6599\u80fd\u4ea7\u751f\u5e94\u529b\u3002\u94c1\u7535\u6750\u6599\u5219\u66f4\u4e3a\u7a81\u51fa&#8230;<\/p>\n","protected":false},"author":35295,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[],"class_list":["post-239267","post","type-post","status-publish","format-standard","hentry","category-keji"],"_links":{"self":[{"href":"\/\/m.iemloyee.com\/index.php?rest_route=\/wp\/v2\/posts\/239267"}],"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\/35295"}],"replies":[{"embeddable":true,"href":"\/\/m.iemloyee.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=239267"}],"version-history":[{"count":4,"href":"\/\/m.iemloyee.com\/index.php?rest_route=\/wp\/v2\/posts\/239267\/revisions"}],"predecessor-version":[{"id":239345,"href":"\/\/m.iemloyee.com\/index.php?rest_route=\/wp\/v2\/posts\/239267\/revisions\/239345"}],"wp:attachment":[{"href":"\/\/m.iemloyee.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=239267"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"\/\/m.iemloyee.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=239267"},{"taxonomy":"post_tag","embeddable":true,"href":"\/\/m.iemloyee.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=239267"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}