{"id":46740,"date":"2016-10-15T06:30:50","date_gmt":"2016-10-14T22:30:50","guid":{"rendered":"\/\/m.iemloyee.com\/?p=46740"},"modified":"2016-10-14T18:26:54","modified_gmt":"2016-10-14T10:26:54","slug":"%e7%83%ad%e7%94%b5%e7%a1%85%e6%9d%90%e6%96%99%ef%bc%8c%e6%88%90%e5%8a%9f%e7%aa%81%e7%a0%b4%e4%b8%a4%e9%81%93%e9%98%b2%e7%ba%bf%ef%bc%81","status":"publish","type":"post","link":"\/\/m.iemloyee.com\/?p=46740","title":{"rendered":"\u70ed\u7535\u7845\u6750\u6599\uff0c\u6210\u529f\u7a81\u7834\u201c\u4e24\u9053\u9632\u7ebf\u201d\uff01"},"content":{"rendered":"<p><strong>\u6750\u6599\u725b\u6ce8\uff1a<\/strong>\u6700\u8fd1\uff0c\u5fb7\u56fd\u4e9a\u741b\u5de5\u4e1a\u5927\u5b66\u7684\u7814\u7a76\u5458\u53d1\u73b0\u4e86\u4e00\u79cd\u591a\u6676\u7845\u7eb3\u7c73\u7ebf\uff0c\u6253\u7834\u4e86Casimir\u6781\u9650\u548c\u975e\u6676\u6781\u9650\uff0c\u5176\u70ed\u5bfc\u7387\u503c\u4f4e\u4e8e\u7406\u8bba\u7684\u9884\u6d4b\u503c\uff0c\u8fd9\u5c06\u5bf9\u70ed\u7535\u9886\u57df\u5e26\u6765\u5de8\u5927\u7684\u53d8\u5316\uff01<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-46741\" src=\"\/\/m.iemloyee.com\/wp-content\/uploads\/2016\/10\/1-18.jpg\" alt=\"1\" width=\"700\" height=\"420\" srcset=\"\/\/m.iemloyee.com\/wp-content\/uploads\/2016\/10\/1-18.jpg 700w, \/\/m.iemloyee.com\/wp-content\/uploads\/2016\/10\/1-18-300x180.jpg 300w\" sizes=\"(max-width: 700px) 100vw, 700px\" \/><\/p>\n<p>\u4e00\u79cd\u591a\u6676\u7845\u7eb3\u7c73\u7ebf\u7684\u65b0\u6750\u6599\uff0c\u6253\u7834\u4e86Casimir\u6781\u9650\u548c\u975e\u6676\u6781\u9650\u3002Casimir\u6781\u9650\u7406\u8bba\u63cf\u8ff0\u4e86\u7eb3\u7c73\u7ed3\u6784\u7684\u70ed\u4f20\u5bfc\u7387\uff0c\u8be5\u6781\u9650\u503c\u7684\u7a81\u7834\u610f\u5473\u7740\u65b0\u6750\u6599\u7684\u5bfc\u70ed\u7cfb\u6570\u4f4e\u4e8eCasimir\u6781\u9650\u7406\u8bba\u7684\u9884\u6d4b\u503c\u3002\u56e0\u4e3a\u975e\u6676\u7ed3\u6784\u5bf9\u70ed\u8f7d\u4f53\u5177\u6709\u5f3a\u70c8\u7684\u6563\u70ed\u80fd\u529b\uff0c\u6240\u4ee5\u975e\u6676\u6781\u9650\u88ab\u8ba4\u4e3a\u662f\u4e00\u79cd\u6750\u6599\u7684\u6700\u4f4e\u70ed\u5bfc\u7387\u3002\u7136\u800c\uff0c\u7531\u4e8e\u5176\u72ec\u7279\u7684\u7eb3\u7c73\u7ea7\u8bbe\u8ba1\uff0c\u591a\u6676\u7845\u7eb3\u7c73\u7ebf\u5177\u6709\u7684\u70ed\u5bfc\u7387\u5374\u4f4e\u4e8e\u975e\u6676\u7845\u6750\u6599\u7684\u4e09\u5206\u4e4b\u4e00\u3002<\/p>\n<p>\u5fb7\u56fd\u4e9a\u741b\u5de5\u4e1a\u5927\u5b66\u7684\u7814\u7a76\u5458Yanguang Zhou\u548cMing Hu\uff0c\u628a\u591a\u6676\u7845\u7eb3\u7c73\u7ebf\u7684\u6210\u679c\u53d1\u8868\u5728\u4e86\u6700\u8fd1\u4e00\u671f\u7684<em>Nano Letters<\/em>\u671f\u520a\u4e0a\u3002<\/p>\n<p>\u7814\u7a76\u8005\u671f\u671b\u65b0\u6750\u6599\u80fd\u591f\u4e13\u95e8\u7528\u5728\u70ed\u7535\u9886\u57df\u3002\u901a\u8fc7\u628a\u70ed\u80fd\u8f6c\u6362\u6210\u7535\u80fd\uff0c\u70ed\u7535\u6750\u6599\u5f00\u8f9f\u4e86\u4e00\u6761\u5d2d\u65b0\u7684\u9053\u8def\uff0c\u5229\u7528\u6c7d\u8f66\u6392\u6c14\u7ba1\u3001\u7535\u5382\u548c\u5236\u9020\u8bbe\u5907\u91ca\u653e\u7684\u5e9f\u70ed\uff0c\u5c06\u5176\u8f6c\u5316\u6210\u6709\u7528\u7684\u80fd\u6e90\u3002<\/p>\n<p>\u4e00\u822c\u60c5\u51b5\u4e0b\uff0c\u597d\u7684\u70ed\u7535\u6750\u6599\u540c\u65f6\u5177\u6709\u9ad8\u7684\u7535\u5bfc\u7387\u548c\u4f4e\u7684\u70ed\u5bfc\u7387\u3002\u53ea\u6709\u4e24\u8005\u76f8\u4e92\u7ed3\u5408\uff0c\u624d\u5177\u6709\u9ad8\u7684\u7efc\u5408\u70ed\u7535\u8f6c\u5316\u6548\u7387\u3002\u5728\u6700\u65b0\u7684\u7814\u7a76\u4e2d\uff0c\u7814\u7a76\u8005\u7684\u7126\u70b9\u96c6\u4e2d\u5728\uff1a\u5982\u4f55\u5728\u7ef4\u6301\u7845\u6750\u6599\u9ad8\u7535\u5bfc\u7387\u7684\u540c\u65f6\u964d\u4f4e\u70ed\u5bfc\u7387\u3002<\/p>\n<p>Zhou\u544a\u8bc9<em>Phys.org<\/em>\u8bb0\u8005\uff1a\u201c\u5728\u8fd9\u7bc7\u8bba\u6587\u4e2d\uff0c\u6211\u4eec\u62a5\u9053\u4e86\u4e00\u79cd\u65b0\u7684\u7ed3\u6784\u2014\u2014\u591a\u6676\u7eb3\u7c73\u7ebf\uff0c\u8fd9\u79cd\u7ed3\u6784\u80fd\u591f\u5c06\u70ed\u5bfc\u7387\u51cf\u5c0f\u5230\u73b0\u6709\u8bb0\u5f55\u7684\u6700\u4f4e\u503c\uff0c\u53ea\u6709\u5176\u5bf9\u5e94\u975e\u6676\u7269\u8d28\u5bfc\u70ed\u7387\u7684\u4e09\u5206\u4e4b\u4e00\u3002\u5982\u679c\u6211\u4eec\u901a\u8fc7\u63ba\u6742\u6750\u6599\uff0c\u4fdd\u6301\u6750\u6599\u7684\u7535\u5bfc\u7387\u548cSeebeck\u7cfb\u6570\u4e0d\u53d8\uff0c\u90a3\u4e48\u76f8\u6bd4\u4e8e\u5757\u4f53\u6750\u6599\uff0c\u591a\u6676\u7eb3\u7c73\u7ebf\u5c06\u70ed\u80fd\u8f6c\u5316\u4e3a\u7535\u80fd\u7684\u6548\u7387\u4f1a\u63d0\u9ad8277\u500d\u3002\u201d<\/p>\n<p>\u65b0\u578b\u7845\u7eb3\u7c73\u7ebf\u4f4e\u70ed\u5bfc\u7387\u5b9e\u73b0\u7684\u5173\u952e\u5728\u4e8e\u5b83\u7684\u591a\u6676\u5f62\u5f0f\uff0c\u5176\u4e2d\u5305\u542b\u4e86\u5728\u968f\u673a\u53d6\u5411\u4e0b\u4e0d\u540c\u5f62\u72b6\u548c\u5927\u5c0f\u7684\u6676\u4f53\u7ed3\u6784\u3002\u57fa\u4e8e\u591a\u6676\u7845\u7eb3\u7c73\u7ebf\u7684\u5e73\u5747\u6676\u7c92\u5c3a\u5bf8\uff08~3 nm\uff09\uff0cCasimir\u6781\u9650\u9884\u6d4b\u5176\u70ed\u5bfc\u7387\u4e0d\u4f1a\u4f4e\u4e8e~3 W\/mK\u3002\u4f46\u662f\uff0c\u5b9e\u9a8c\u4eba\u5458\u7684\u6a21\u62df\u8868\u660e\uff0c\u591a\u6676\u7845\u7eb3\u7c73\u7ebf\u7684\u70ed\u5bfc\u7387\u53ea\u67090.7 W\/mK\uff0c\u8be5\u503c\u6bd4\u5757\u4f53\u7845\u4f4e269\u500d\uff0c\u6bd4\u7eaf\u7845\u7eb3\u7c73\u7ebf\u4f4e77\u500d\uff0c\u6bd4\u975e\u6676\u7845\u7eb3\u7c73\u7ebf\u4f4e3\u500d\u3002<\/p>\n<p>\u7814\u7a76\u4eba\u5458\u89e3\u91ca\u9053\uff0c\u591a\u6676\u7ed3\u6784\u7684\u4e00\u4e2a\u91cd\u8981\u7279\u5f81\u662f\u6676\u4f53\u4e4b\u95f4\u7684\u6676\u754c\u662f\u4e0d\u8fde\u7eed\u7684\u3002\u56e0\u6b64\uff0c\u6676\u754c\u4f1a\u963b\u788d\u5e76\u6563\u5c04\u70ed\u4f20\u8f93\u58f0\u5b50\uff0c\u5bfc\u81f4\u58f0\u5b50\u4e0d\u80fd\u5728\u6750\u6599\u4e2d\u957f\u7a0b\u79fb\u52a8\uff08\u53ea\u6709~1 nm\uff09\u3002\u800c\u5728\u5176\u5b83\u7845\u6750\u6599\u4e2d\uff0c\u6676\u754c\u5f62\u6210\u8fde\u7eed\u7684\u7f51\u7edc\uff0c\u58f0\u5b50\u7684\u79fb\u52a8\u8ddd\u79bb\u5927\u4e8e1 \u00b5m\u3002<\/p>\n<p>\u5f53\u4e0b\u7684\u7814\u7a76\u7ed3\u679c\u4f1a\u5f15\u8d77\u4e00\u4e2a\u95ee\u9898\uff1a\u5bf9\u4e8e\u4efb\u4f55\u5f62\u5f0f\u7684\u7845\u7eb3\u7c73\u7ebf\uff0c\u53ef\u80fd\u7684\u6700\u4f4e\u70ed\u5bfc\u7387\u662f\u591a\u5c11\u3002\u4e00\u822c\u60c5\u51b5\u4e0b\uff0c\u6709\u4e24\u79cd\u632f\u52a8\u6709\u52a9\u4e8e\u70ed\u5bfc\u7387\uff1apropagon\u548cdiffuson\u3002\u7814\u7a76\u8005\u4eec\u8ba4\u4e3a\u901a\u8fc7\u5c06\u65e0\u5e8f\u7684\u7eb3\u7c73\u5b6a\u6676\u7ed3\u6784\u5f15\u5165\u5230\u591a\u6676\u7845\u7eb3\u7c73\u7ebf\u4e2d\uff0c\u6700\u5927\u7a0b\u5ea6\u4e0a\u964d\u4f4e\u5b83\u4eec\u7684\u8fd0\u8f93\uff0c\u5e94\u8be5\u6709\u53ef\u80fd\u5b8c\u5168\u6d88\u9664propagon\u7684\u8d21\u732e\u3002\u53e6\u4e00\u65b9\u9762\uff0c\u7531\u4e8e\u6750\u6599\u5185\u5728\u7ed3\u6784\u7684\u7d0a\u4e71\uff0c\u5bfc\u81f4Diffuson\u4e0d\u80fd\u4ee5\u8fd9\u79cd\u65b9\u5f0f\u51cf\u5c0f\u3002\u5c3d\u7ba1\u5982\u6b64\uff0c\u901a\u8fc7\u6d88\u9664propagon\u7684\u8d21\u732e\uff0c\u7814\u7a76\u8005\u8ba4\u4e3a\u591a\u7845\u7eb3\u7c73\u7ebf\u7684\u70ed\u5bfc\u7387\u53ef\u8fdb\u4e00\u6b65\u51cf\u5c0f20%\u3002\u7814\u7a76\u8005\u8ba1\u5212\u5728\u672a\u6765\u7684\u5de5\u4f5c\u4e2d\u5b9e\u73b0\u8fd9\u4e2a\u76ee\u6807\u3002<\/p>\n<p>\u539f\u6587\u94fe\u63a5\uff1a<a href=\"http:\/\/phys.org\/news\/2016-10-thermoelectric-silicon-material-record-low-thermal.html\" target=\"_blank\">Thermoelectric silicon material reaches record-low thermal conductivity<\/a>\u3002<\/p>\n<p>\u6587\u732e\u94fe\u63a5\uff1a<a href=\"http:\/\/pubs.acs.org\/doi\/abs\/10.1021\/acs.nanolett.6b02450\" target=\"_blank\">Record Low Thermal Conductivity of Polycrystalline Si Nanowire: Breaking the Casimir Limit by Severe Suppression of Propagons<\/a>\u3002<\/p>\n<p>\u672c\u6587\u7531\u7f16\u8f91\u90e8\u6768\u8d85\u63d0\u4f9b\u7d20\u6750\uff0c\u5218\u7eaf\u7f16\u8bd1\uff0c\u4e07\u946b\u6d69\u5ba1\u6838\uff0c<a href=\"\/\/m.iemloyee.com\/25127.html\" target=\"_blank\">\u70b9\u6211\u52a0\u5165\u6750\u6599\u4eba\u7f16\u8f91\u90e8<\/a>\u3002<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6750\u6599\u725b\u6ce8\uff1a\u6700\u8fd1\uff0c\u5fb7\u56fd\u4e9a\u741b\u5de5\u4e1a\u5927\u5b66\u7684\u7814\u7a76\u5458\u53d1\u73b0\u4e86\u4e00\u79cd\u591a\u6676\u7845\u7eb3\u7c73\u7ebf\uff0c\u6253\u7834\u4e86Casimir\u6781\u9650\u548c\u975e\u6676\u6781\u9650\uff0c\u5176\u70ed\u5bfc\u7387\u503c\u4f4e\u4e8e\u7406\u8bba\u7684\u9884\u6d4b\u503c\uff0c\u8fd9\u5c06\u5bf9\u70ed\u7535\u9886\u57df\u5e26\u6765\u5de8\u5927\u7684\u53d8\u5316\uff01 &#8230;<\/p>\n","protected":false},"author":230,"featured_media":46741,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[33],"class_list":["post-46740","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-keji","tag-nano"],"_links":{"self":[{"href":"\/\/m.iemloyee.com\/index.php?rest_route=\/wp\/v2\/posts\/46740"}],"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\/230"}],"replies":[{"embeddable":true,"href":"\/\/m.iemloyee.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=46740"}],"version-history":[{"count":1,"href":"\/\/m.iemloyee.com\/index.php?rest_route=\/wp\/v2\/posts\/46740\/revisions"}],"predecessor-version":[{"id":46742,"href":"\/\/m.iemloyee.com\/index.php?rest_route=\/wp\/v2\/posts\/46740\/revisions\/46742"}],"wp:featuredmedia":[{"embeddable":true,"href":"\/\/m.iemloyee.com\/index.php?rest_route=\/wp\/v2\/media\/46741"}],"wp:attachment":[{"href":"\/\/m.iemloyee.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=46740"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"\/\/m.iemloyee.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=46740"},{"taxonomy":"post_tag","embeddable":true,"href":"\/\/m.iemloyee.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=46740"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}