{"id":16,"date":"2023-04-03T10:07:17","date_gmt":"2023-04-03T01:07:17","guid":{"rendered":"https:\/\/www2.tagen.tohoku.ac.jp\/lab\/tsuda\/?page_id=16"},"modified":"2026-04-06T09:50:06","modified_gmt":"2026-04-06T00:50:06","slug":"research","status":"publish","type":"page","link":"https:\/\/www2.tagen.tohoku.ac.jp\/lab\/tsuda\/research\/","title":{"rendered":"Research"},"content":{"rendered":"<h2>\u7814\u7a76\u6982\u8981\uff1a\u900f\u904e\u96fb\u5b50\u9855\u5fae\u93e1\u30fb\u30ca\u30ce\u96fb\u5b50\u30d7\u30ed\u30fc\u30d6\u3092\u7528\u3044\u305f\u5c40\u6240\u69cb\u9020\u30fb\u9759\u96fb\u30dd\u30c6\u30f3\u30b7\u30e3\u30eb\u5206\u5e03\u89e3\u6790<\/h2>\n<p><a href=\"https:\/\/www2.tagen.tohoku.ac.jp\/lab\/tsuda\/wp-content\/uploads\/sites\/116\/Tsuda-Lab1.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-58\" src=\"https:\/\/www2.tagen.tohoku.ac.jp\/lab\/tsuda\/wp-content\/uploads\/sites\/116\/Tsuda-Lab1.jpg\" alt=\"Tsuda-Lab\" width=\"640\" height=\"506\" srcset=\"https:\/\/www2.tagen.tohoku.ac.jp\/lab\/tsuda\/wp-content\/uploads\/sites\/116\/Tsuda-Lab1.jpg 640w, https:\/\/www2.tagen.tohoku.ac.jp\/lab\/tsuda\/wp-content\/uploads\/sites\/116\/Tsuda-Lab1-300x237.jpg 300w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><\/a>\u3000\u6a5f\u80fd\u6027\u6750\u6599\u306b\u304a\u3044\u3066\u3001\u30ca\u30ce\u30b9\u30b1\u30fc\u30eb\u306e\u5c40\u6240\u69cb\u9020\u3084\u7d50\u6676\u30fb\u30c9\u30e1\u30a4\u30f3\u754c\u9762\u306b\u8d77\u56e0\u3059\u308b\u7279\u7570\u306a\u7269\u6027\u306e\u5831\u544a\u304c\u5897\u52a0\u3057\u3066\u304a\u308a\u3001\u5c40\u6240\u7d50\u6676\u69cb\u9020\u89e3\u6790\u306e\u91cd\u8981\u6027\u304c\u9ad8\u307e\u3063\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u305f\u3081\u306b\u306f\u3001\u900f\u904e\u96fb\u5b50\u9855\u5fae\u93e1\u3092\u5229\u7528\u3057\u3066\u3001\u30ca\u30ce\u30b5\u30a4\u30ba\u306b\u53ce\u675f\u3057\u305f\u96fb\u5b50\u30d7\u30ed\u30fc\u30d6\u3092\u8a66\u6599\u306b\u7167\u5c04\u3059\u308b\u53ce\u675f\u96fb\u5b50\u56de\u6298(CBED)\u6cd5\u304c\u304d\u308f\u3081\u3066\u6709\u5229\u3067\u3059\u3002\u672c\u7814\u7a76\u5206\u91ce\u3067\u306f\u3001CBED\u6cd5\u3092\u7528\u3044\u3066\u52d5\u529b\u5b66\u56de\u6298\uff08\u591a\u91cd\u6563\u4e71\uff09\u7406\u8ad6\u8a08\u7b97\u306b\u57fa\u3065\u304f\u5b9a\u91cf\u7684\u306a\u5c40\u6240\u7d50\u6676\u69cb\u9020\u89e3\u6790\u3092\u4e16\u754c\u306b\u5148\u99c6\u3051\u3066\u5b9f\u73fe\u3057\u3001\u5f37\u8a98\u96fb\u30bb\u30e9\u30df\u30c3\u30af\u30b9\u6750\u6599\u3001\u56fa\u4f53\u71c3\u6599\u96fb\u6c60\u95a2\u9023\u6750\u6599\u3001\u5f37\u76f8\u95a2\u96fb\u5b50\u7cfb\u6750\u6599\u7b49\u306b\u9069\u7528\u3057\u3066\u3044\u307e\u3059\u3002\u73fe\u5728\u3001\u8d70\u67fb\u900f\u904e\u96fb\u5b50\u9855\u5fae\u93e1(STEM)\u6cd5\u3068CBED\u6cd5\u3092\u7d44\u307f\u5408\u308f\u305b\u305fSTEM-CBED\/4D-STEM\u6cd5\u3092\u6d3b\u7528\u3057\u3066\u3001\u7d50\u6676\u754c\u9762\u30fb\u30ca\u30ce\u30c9\u30e1\u30a4\u30f3\u69cb\u9020\u306e\u3088\u3046\u306a\u975e\u5468\u671f\u30fb\u4e0d\u5747\u4e00\u69cb\u9020\u304b\u3089\u5c40\u6240\u7d50\u6676\u69cb\u9020\u30fb\u9759\u96fb\u30dd\u30c6\u30f3\u30b7\u30e3\u30eb\u306e\u7a7a\u9593\u5909\u5316\u3092\u5b9a\u91cf\u89e3\u6790\u3059\u308b\u624b\u6cd5\u306e\u958b\u767a\u306b\u53d6\u308a\u7d44\u3093\u3067\u304a\u308a\u3001\u5c40\u6240\u69cb\u9020\u30fb\u754c\u9762\u306b\u8d77\u56e0\u3059\u308b\u65b0\u898f\u6a5f\u80fd\u6027\u6750\u6599\u958b\u767a\u306b\u5bc4\u4e0e\u3059\u308b\u3053\u3068\u3092\u76ee\u6307\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<h3>\u4e3b\u306a\u7814\u7a76\u30c6\u30fc\u30de<\/h3>\n<ul>\n<li>\u53ce\u675f\u96fb\u5b50\u56de\u6298\u6cd5\u306b\u3088\u308b\u5c40\u6240\u7d50\u6676\u69cb\u9020\u30fb\u9759\u96fb\u30dd\u30c6\u30f3\u30b7\u30e3\u30eb\u5206\u5e03\u89e3\u6790\u6cd5\u306e\u958b\u767a\u3068\u5fdc\u7528:\u00a0Development of local crystal structure and electrostatic potential analysis and its applications<\/li>\n<li>4D-STEM\u6cd5\u306b\u3088\u308b\u7d50\u6676\u754c\u9762\u30fb\u30ca\u30ce\u30c9\u30e1\u30a4\u30f3\u69cb\u9020\u306e\u5c40\u6240\u69cb\u9020\u30fb\u9759\u96fb\u30dd\u30c6\u30f3\u30b7\u30e3\u30eb\u5206\u5e03\u89e3\u6790:\u00a0Local structure and electrostatic potential analysis of crystal interface and nanodomain structures using 4D-STEM<\/li>\n<li>\u6df1\u5c64\u5b66\u7fd2\u3068\u306e\u5171\u5275\u306b\u3088\u308b\u5c40\u6240\u69cb\u9020\u89e3\u6790\u624b\u6cd5\u306e\u958b\u767a: Development of a Local Structure Analysis Method Assisted by Deep Learning<\/li>\n<li>\u6a5f\u80fd\u6027\u6750\u6599\u306e\u5916\u5834\u5370\u52a0\u306b\u304a\u3051\u308b\u30ca\u30ce\u5c40\u6240\u7d50\u6676\u69cb\u9020\u89e3\u6790:\u00a0Nanoscale local crystal structure analysis of functional materials under applying external fields<\/li>\n<li>\u69cb\u9020\u76f8\u8ee2\u79fb\u306b\u304a\u3051\u308b\u30ca\u30ce\u5c40\u6240\u7d50\u6676\u69cb\u9020\u89e3\u6790:\u00a0Nanoscale local crystal structure analysis at structural phase transformations<\/li>\n<\/ul>\n<h3>\u73fe\u5728\u9032\u884c\u4e2d\u306e\u4e3b\u306a\u30d7\u30ed\u30b8\u30a7\u30af\u30c8<\/h3>\n<ol>\n<li>\u6df1\u5c64\u5b66\u7fd2\u99c6\u52d5\u578bQCBED\u6cd5\u306b\u3088\u308b\u591a\u30d1\u30e9\u30e1\u30fc\u30bf\u5c40\u6240\u69cb\u9020\u89e3\u6790\u30002026.4-2028.3\u3000JST\u3055\u304d\u304c\u3051\u878d\u5408\u7814\u7a76\u52a0\u901f\u652f\u63f4\u3000\u7814\u7a76\u4ee3\u8868\u8005\u3000\u68ee\u5ddd\u5927\u8f14<\/li>\n<li>\u8d85\u539f\u5b50\u5ea7\u6a19\u69cb\u9020\u306e\u53ef\u8996\u5316\u306b\u3088\u308b\u5275\u85ac\u306e\u9769\u65b0\u30002023.4-2028.3\u3000JST\u672a\u6765\u793e\u4f1a\u5275\u9020\u4e8b\u696d\u3000\u7814\u7a76\u4ee3\u8868\u8005\u3000\u7c73\u5009\u529f\u6cbb\u3001\u7814\u7a76\u5206\u62c5\u8005\u3000\u6d25\u7530\u5065\u6cbb\u300c\u7cbe\u5bc6\u69cb\u9020\u89e3\u6790\u300d<\/li>\n<li>\u9769\u65b0\u7684\u96fb\u5b50\u5bc6\u5ea6\u30de\u30c3\u30d4\u30f3\u30b0\u6280\u8853\u306e\u69cb\u7bc9\uff1a4D-STEM\u306b\u3088\u308b\u754c\u9762\u30fb\u6b20\u9665\u306e\u5b9a\u91cf\u81ea\u52d5\u89e3\u6790\u30002025.10-2027.9\u3000NEDO\u82e5\u30b5\u30dd\u3000\u30de\u30c3\u30c1\u30f3\u30b0\u30b5\u30dd\u30fc\u30c8\u30d5\u30a7\u30fc\u30ba\u3000\u7814\u7a76\u4ee3\u8868\u8005\u3000\u68ee\u5ddd\u5927\u8f14<\/li>\n<\/ol>\n<h3>\u7d42\u4e86\u3057\u305f\u4e3b\u306a\u30d7\u30ed\u30b8\u30a7\u30af\u30c8<\/h3>\n<ol>\n<li>\u4e8c\u6b21\u5143\u914d\u5217\u69cb\u9020\u306b\u304a\u3051\u308b\u5c40\u6240\u96fb\u5b50\u5bc6\u5ea6\u5206\u5e03\u304a\u3088\u3073\u7269\u6027\u89e3\u6790\u624b\u6cd5\u306e\u958b\u767a\u30002022.10-2026.3\u3000JST\u3055\u304d\u304c\u3051\u3000\u7814\u7a76\u4ee3\u8868\u8005\u3000\u68ee\u5ddd\u5927\u8f14<\/li>\n<li>\u30ca\u30ce\u96fb\u5b50\u30d7\u30ed\u30fc\u30d6\u306b\u3088\u308b\u30de\u30eb\u30c6\u30f3\u30b5\u30a4\u30c8\u76f8\u8ee2\u79fb\u306e\u5c40\u6240\u69cb\u9020\u89e3\u6790\u3068\u5fae\u8996\u7684\u76f8\u8ee2\u79fb\u6a5f\u69cb\u30002022.4-2024.3\u3000\u57fa\u76e4\u7814\u7a76(B)\u3000\u7814\u7a76\u4ee3\u8868\u8005\u3000\u6d25\u7530\u5065\u6cbb<\/li>\n<li>\u9ad8\u30af\u30ed\u30e0\u92f3\u9244\u30ab\u30fc\u30d0\u30a4\u30c9\u6dfb\u52a0\u5143\u7d20\u306e\u30de\u30eb\u30c1\u96fb\u5b50\u30d7\u30ed\u30fc\u30d6\u5c40\u6240\u7d50\u6676\u69cb\u9020\u89e3\u6790\u30002023.4-2024.3\u3000\u6311\u6226\u7684\u7814\u7a76\uff08\u840c\u82bd\uff09\u3000\u7814\u7a76\u4ee3\u8868\u8005\u3000\u6d25\u7530\u5065\u6cbb<\/li>\n<li>\u5c40\u6240\u96fb\u5b50\u5bc6\u5ea6\u5206\u5e03\u89e3\u6790\u306b\u3088\u308b\u5f37\u8a98\u96fb\u4f53\u30c9\u30e1\u30a4\u30f3\u58c1\u306b\u304a\u3051\u308b\u5206\u6975\u56de\u8ee2\u306e\u76f4\u63a5\u89b3\u6e2c\u30002022.4-2023.3\u3000\u65b0\u5b66\u8853\u9818\u57df\u7814\u7a76\uff08\u516c\u52df\uff09\u3000\u7814\u7a76\u4ee3\u8868\u8005\u3000\u68ee\u5ddd\u5927\u8f14<\/li>\n<\/ol>\n<h3><span style=\"font-weight: 400\">\u00a0\u5171\u540c\u7814\u7a76\u306e\u4f8b\uff1a<\/span><\/h3>\n<p>\u6771\u5317\u5927\u5b66\u3000\u5bfa\u5185\u7814\u7a76\u5ba4\u3001\u7c73\u5009\u7814\u7a76\u5ba4\u3001\u798f\u5c71\u7814\u7a76\u5ba4\u3001\u4f50\u85e4(\u5353)\u7814\u7a76\u5ba4\u3001\u677e\u5ca1\u7814\u7a76\u5ba4<br \/>\n\u540d\u53e4\u5c4b\u5927\u5b66\u3000\u6b66\u85e4\u7814\u7a76\u5ba4\u3001\u658e\u85e4\u7814\u7a76\u5ba4<br \/>\n\u6771\u4eac\u5927\u5b66\u3000\u6e9d\u53e3\u7814\u7a76\u5ba4\u3001\u5e7e\u539f\u30fb\u67f4\u7530\u7814\u7a76\u5ba4<br \/>\n\u9759\u5ca1\u5927\u5b66\u3000\u7b26\u7814\u7a76\u5ba4<br \/>\n\u65e5\u672c\u5927\u5b66\u3000\u6a4b\u672c\u7814\u7a76\u5ba4<br \/>\n\u30aa\u30fc\u30b9\u30c8\u30e9\u30ea\u30a2\u3000\u30e2\u30ca\u30b7\u30e5\u5927\u5b66\u3000A.Prof. Philip Nakashima<br \/>\n\u30c9\u30a4\u30c4\u3000\u30d5\u30f3\u30dc\u30eb\u30c8\u5927\u5b66\u30d9\u30eb\u30ea\u30f3\u3000Prof. Christoph Koch<br \/>\n\u30a2\u30e1\u30ea\u30ab\u3000\u30d6\u30eb\u30c3\u30af\u30d8\u30d6\u30f3\u56fd\u7acb\u7814\u7a76\u6240\u3000Dr. Yimei Zhu<br \/>\n\u65e5\u672c\u96fb\u5b50\u3000\u6b21\u4e16\u4ee3\u96fb\u5b50\u9855\u5fae\u93e1\u6280\u8853\u5171\u540c\u7814\u7a76\u90e8\u9580<br \/>\n\u4ed6\u306b\u3082\u56fd\u5185\u56fd\u5916\u306e\u5927\u5b66\u3084\u4f01\u696d\u3068\u306e\u5171\u540c\u7814\u7a76\u3092\u9032\u3081\u3066\u3044\u307e\u3059\u3002<\/p>\n<h3>\u7814\u7a76\u30ad\u30fc\u30ef\u30fc\u30c9<\/h3>\n<p>\u96fb\u5b50\u7dda\u7d50\u6676\u5b66\u3001\u53ce\u675f\u96fb\u5b50\u56de\u6298\u3001STEM-CBED\/4D-STEM\u3001\u69cb\u9020\u76f8\u8ee2\u79fb\u3001\u7d50\u6676\u754c\u9762\u30fb\u30c9\u30e1\u30a4\u30f3\u69cb\u9020<\/p>\n<h3>\u6240\u5c5e\u5b66\u4f1a<\/h3>\n<p><a href=\"https:\/\/microscopy.or.jp\/\" target=\"_blank\" rel=\"noopener\">\u65e5\u672c\u9855\u5fae\u93e1\u5b66\u4f1a<\/a>\u3001<a href=\"https:\/\/crsj.jp\/\" target=\"_blank\" rel=\"noopener\">\u65e5\u672c\u7d50\u6676\u5b66\u4f1a<\/a>\u3001<a href=\"https:\/\/www.jps.or.jp\/\" target=\"_blank\" rel=\"noopener\">\u65e5\u672c\u7269\u7406\u5b66\u4f1a<\/a>\u3001<a href=\"https:\/\/www.dielectric-jpn.org\/\" target=\"_blank\" rel=\"noopener\">\u65e5\u672c\u8a98\u96fb\u4f53\u5b66\u4f1a<\/a><\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<h2>Nanoscale local crystal structure and electrostatic potential analysis using nano-electron probe<\/h2>\n<p><a href=\"https:\/\/www2.tagen.tohoku.ac.jp\/lab\/tsuda\/wp-content\/uploads\/sites\/116\/research_fig1.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-59\" src=\"https:\/\/www2.tagen.tohoku.ac.jp\/lab\/tsuda\/wp-content\/uploads\/sites\/116\/research_fig1.jpg\" alt=\"research_fig\" width=\"640\" height=\"511\" srcset=\"https:\/\/www2.tagen.tohoku.ac.jp\/lab\/tsuda\/wp-content\/uploads\/sites\/116\/research_fig1.jpg 640w, https:\/\/www2.tagen.tohoku.ac.jp\/lab\/tsuda\/wp-content\/uploads\/sites\/116\/research_fig1-300x240.jpg 300w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><\/a><\/p>\n<p>Local crystal structure analysis is increasingly important in functional materials that exhibit intriguing physical properties induced by nanoscale local structures and crystal interfaces. For this purpose, the convergent-beam electron diffraction (CBED) method using nano-electron probe is extremely advantageous. Using the CBED method, we developed a quantitative analysis method of local structures and electrostatic potential distributions based on the dynamical diffraction (multiple scattering) theory, and applied it to various functional materials. Furthermore, we are developing a method to investigate spatial variations of local structures and electrostatic potential distributions in crystal interfaces and nanodomain structures by using the STEM-CBED\/4D-STEM method.<\/p>\n<p>&nbsp;<\/p>\n<p>We welcome foreign students and postdoc researchers.<br \/>\nThe following projects are ongoing.<\/p>\n<p>+ Development of local electron density and physical property analysis method for two dimensional structure, Precursory Research for Embryonic Science and Technology, Japan Science and Technology Agency, 2022-2026, Daisuke MORIKAWA<\/p>\n<p>+ Innovation of drug discovery through visualization of structures beyond atomic coordinates, Realization of common platform technologies, facilities and equipment<br \/>\nthat create innovative knowledge and products, Japan Science and Technology Agency, 2023-2027, (Director) Koji YONEKURA, (Co-Investigator) Kenji TSUDA<\/p>\n<p>&nbsp;<\/p>\n<p>Requirements:<\/p>\n<p>(Student) Fundamental knowledge about solid state physics. Knowledge and experience with TEM are preferred.<br \/>\n(Postdoc) Fundamental knowledge about solid state physics, experience of using TEM or first-principle calculation or python scripting<\/p>\n<p>Contact: D. Morikawa, daisuke.morikawa.e5@tohoku.ac.jp<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u7814\u7a76\u6982\u8981\uff1a\u900f\u904e\u96fb\u5b50\u9855\u5fae\u93e1\u30fb\u30ca\u30ce\u96fb\u5b50\u30d7\u30ed\u30fc\u30d6\u3092\u7528\u3044\u305f\u5c40\u6240\u69cb\u9020\u30fb\u9759\u96fb\u30dd\u30c6\u30f3\u30b7\u30e3\u30eb\u5206\u5e03\u89e3\u6790 \u3000\u6a5f\u80fd\u6027\u6750\u6599\u306b\u304a\u3044\u3066\u3001\u30ca\u30ce\u30b9\u30b1\u30fc\u30eb\u306e\u5c40&#8230;<\/p>\n","protected":false},"author":88,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_locale":"ja","_original_post":"https:\/\/www2.tagen.tohoku.ac.jp\/lab\/tsuda\/?page_id=16","footnotes":""},"class_list":["post-16","page","type-page","status-publish","hentry","ja"],"_links":{"self":[{"href":"https:\/\/www2.tagen.tohoku.ac.jp\/lab\/tsuda\/wp-json\/wp\/v2\/pages\/16","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www2.tagen.tohoku.ac.jp\/lab\/tsuda\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www2.tagen.tohoku.ac.jp\/lab\/tsuda\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www2.tagen.tohoku.ac.jp\/lab\/tsuda\/wp-json\/wp\/v2\/users\/88"}],"replies":[{"embeddable":true,"href":"https:\/\/www2.tagen.tohoku.ac.jp\/lab\/tsuda\/wp-json\/wp\/v2\/comments?post=16"}],"version-history":[{"count":18,"href":"https:\/\/www2.tagen.tohoku.ac.jp\/lab\/tsuda\/wp-json\/wp\/v2\/pages\/16\/revisions"}],"predecessor-version":[{"id":390,"href":"https:\/\/www2.tagen.tohoku.ac.jp\/lab\/tsuda\/wp-json\/wp\/v2\/pages\/16\/revisions\/390"}],"wp:attachment":[{"href":"https:\/\/www2.tagen.tohoku.ac.jp\/lab\/tsuda\/wp-json\/wp\/v2\/media?parent=16"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}