{"id":209088,"date":"2024-03-21T14:05:55","date_gmt":"2024-03-21T14:05:55","guid":{"rendered":"https:\/\/www.electricity-magnetism.org\/%e3%83%96%e3%83%ad%e3%83%83%e3%83%9b%e5%a3%81%e3%81%ae%e5%8e%9a%e3%81%95%e3%81%ae%e6%96%b9%e7%a8%8b%e5%bc%8f-%e8%a7%a3%e8%aa%ac%e3%81%a8%e8%a8%88%e7%ae%97%e6%96%b9%e6%b3%95\/"},"modified":"2024-05-17T15:07:06","modified_gmt":"2024-05-17T15:07:06","slug":"%e3%83%96%e3%83%ad%e3%83%83%e3%83%9b%e5%a3%81%e3%81%ae%e5%8e%9a%e3%81%95%e3%81%ae%e6%96%b9%e7%a8%8b%e5%bc%8f-%e8%a7%a3%e8%aa%ac%e3%81%a8%e8%a8%88%e7%ae%97%e6%96%b9%e6%b3%95","status":"publish","type":"post","link":"https:\/\/www.electricity-magnetism.org\/ja\/%e3%83%96%e3%83%ad%e3%83%83%e3%83%9b%e5%a3%81%e3%81%ae%e5%8e%9a%e3%81%95%e3%81%ae%e6%96%b9%e7%a8%8b%e5%bc%8f-%e8%a7%a3%e8%aa%ac%e3%81%a8%e8%a8%88%e7%ae%97%e6%96%b9%e6%b3%95\/","title":{"rendered":"\u30d6\u30ed\u30c3\u30db\u58c1\u306e\u539a\u3055\u306e\u65b9\u7a0b\u5f0f | \u89e3\u8aac\u3068\u8a08\u7b97\u65b9\u6cd5"},"content":{"rendered":"<p class=\"sidekick\">\u30d6\u30ed\u30c3\u30db\u58c1\u306e\u539a\u3055\u3068\u305d\u306e\u8a08\u7b97\u65b9\u6cd5\u306b\u3064\u3044\u3066\u89e3\u8aac\u3002\u4ea4\u63db\u76f8\u4e92\u4f5c\u7528\u5b9a\u6570\u3068\u7570\u65b9\u6027\u5b9a\u6570\u3092\u7528\u3044\u305f\u5177\u4f53\u7684\u306a\u8a08\u7b97\u4f8b\u3082\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n<h2> \u30d6\u30ed\u30c3\u30db\u58c1\u306e\u539a\u3055\u306e\u65b9\u7a0b\u5f0f | \u89e3\u8aac\u3068\u8a08\u7b97\u65b9\u6cd5 <\/h2>\n<p>\u7269\u7406\u5b66\u3084\u96fb\u78c1\u6c17\u5b66\u306b\u304a\u3044\u3066\u3001\u300c\u30d6\u30ed\u30c3\u30db\u58c1\uff08Bloch wall\uff09\u300d\u306f\u91cd\u8981\u306a\u6982\u5ff5\u306e\u4e00\u3064\u3067\u3059\u3002\u3053\u306e\u58c1\u306f\u78c1\u6027\u4f53\u5185\u306e\u78c1\u533a\uff08domains\uff09\u3092\u5206\u3051\u308b\u7bc4\u56f2\u3067\u3001\u78c1\u5316\u306e\u65b9\u5411\u304c\u9023\u7d9a\u7684\u306b\u5909\u308f\u308b\u90e8\u5206\u3092\u6307\u3057\u307e\u3059\u3002\u30d6\u30ed\u30c3\u30db\u58c1\u306e\u539a\u3055\u306f\u3001\u78c1\u6027\u4f53\u306e\u7279\u6027\u3084\u78c1\u5834\u306e\u6761\u4ef6\u306b\u3088\u3063\u3066\u7570\u306a\u308a\u307e\u3059\u3002\u672c\u8a18\u4e8b\u3067\u306f\u3001\u305d\u306e\u8a08\u7b97\u65b9\u6cd5\u3068\u95a2\u9023\u3059\u308b\u65b9\u7a0b\u5f0f\u306b\u3064\u3044\u3066\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n<h2> \u30d6\u30ed\u30c3\u30db\u58c1\u306e\u6982\u5ff5 <\/h2>\n<p>\u30d6\u30ed\u30c3\u30db\u58c1\u306f\u3001\u78c1\u6027\u4f53\u306e\u4e2d\u3067\u7570\u306a\u308b\u65b9\u5411\u306b\u78c1\u5316\u3055\u308c\u305f\u9818\u57df\uff08\u78c1\u533a\uff09\u304c\u5b58\u5728\u3059\u308b\u5834\u5408\u306b\u5f62\u6210\u3055\u308c\u307e\u3059\u3002\u4f8b\u3048\u3070\u3001\u78c1\u5316\u306e\u65b9\u5411\u304c\u4e0a\u4e0b\u306b\u5206\u304b\u308c\u308b\u9818\u57df\u304c\u3042\u308b\u3068\u3001\u305d\u306e\u5883\u754c\u90e8\u3067\u306f\u78c1\u5316\u304c\u6bb5\u968e\u7684\u306b180\u5ea6\u56de\u8ee2\u3057\u307e\u3059\u3002\u3053\u306e\u56de\u8ee2\u3059\u308b\u9818\u57df\u304c\u30d6\u30ed\u30c3\u30db\u58c1\u3067\u3059\u3002<\/p>\n<h2> \u30d6\u30ed\u30c3\u30db\u58c1\u306e\u539a\u3055\u306e\u6c7a\u5b9a\u8981\u56e0 <\/h2>\n<p>\u30d6\u30ed\u30c3\u30db\u58c1\u306e\u539a\u3055\u306f\u4ee5\u4e0b\u306e\u8981\u56e0\u306b\u4f9d\u5b58\u3057\u307e\u3059\uff1a<\/p>\n<p>&#8211; \u4ea4\u63db\u76f8\u4e92\u4f5c\u7528 ($A$)<br \/>\n&#8211; \u7570\u65b9\u6027\u5b9a\u6570 ($K$)<\/p>\n<p>\u4ea4\u63db\u76f8\u4e92\u4f5c\u7528\u306f\u3001\u96a3\u63a5\u3059\u308b\u30b9\u30d4\u30f3\u304c\u5e73\u884c\u306b\u914d\u7f6e\u3055\u308c\u308b\u3088\u3046\u306b\u30a8\u30cd\u30eb\u30ae\u30fc\u304c\u6700\u5c0f\u306b\u306a\u308b\u76f8\u4e92\u4f5c\u7528\u306e\u3053\u3068\u3067\u3059\u3002\u4e00\u65b9\u3001\u7570\u65b9\u6027\u5b9a\u6570\u306f\u3001\u7279\u5b9a\u306e\u65b9\u5411\u306b\u78c1\u5316\u304c\u5411\u304f\u50be\u5411\u3092\u793a\u3059\u5b9a\u6570\u3067\u3059\u3002<\/p>\n<h2> \u30d6\u30ed\u30c3\u30db\u58c1\u306e\u539a\u3055\u306e\u65b9\u7a0b\u5f0f <\/h2>\n<p>\u30d6\u30ed\u30c3\u30db\u58c1\u306e\u539a\u3055 $\\delta$ \u306f\u3001\u4ea4\u63db\u76f8\u4e92\u4f5c\u7528\u5b9a\u6570 $A$ \u3068\u7570\u65b9\u6027\u5b9a\u6570 $K$ \u306b\u3088\u3063\u3066\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u8868\u3055\u308c\u307e\u3059\uff1a<\/p>\n<p>\\[<br \/>\n\\delta = \\pi \\sqrt{\\frac{A}{K}}<br \/>\n\\]<\/p>\n<p>\u3053\u3053\u3067\u3001<\/p>\n<p>&#8211; $\\delta$ \u306f\u30d6\u30ed\u30c3\u30db\u58c1\u306e\u539a\u3055<br \/>\n&#8211; $A$ \u306f\u4ea4\u63db\u76f8\u4e92\u4f5c\u7528\u5b9a\u6570<br \/>\n&#8211; $K$ \u306f\u7570\u65b9\u6027\u5b9a\u6570<\/p>\n<p>\u3053\u306e\u5f0f\u306f\u3001\u78c1\u533a\u5883\u754c\u304c\u3086\u3063\u304f\u308a\u3068\u5909\u5316\u3059\u308b\uff08\u9023\u7d9a\u7684\u306b\u56de\u8ee2\u3059\u308b\uff09\u30a8\u30cd\u30eb\u30ae\u30fc\u6700\u4f4e\u306e\u72b6\u614b\u3092\u8868\u73fe\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<h2> \u8a08\u7b97\u4f8b <\/h2>\n<p>\u5177\u4f53\u4f8b\u3068\u3057\u3066\u3001\u4ea4\u63db\u76f8\u4e92\u4f5c\u7528\u5b9a\u6570 $A$ \u304c $10^{-11} \\, \\text{J\/m}$\u3001\u7570\u65b9\u6027\u5b9a\u6570 $K$ \u304c $10^4 \\, \\text{J\/m}^3$ \u3067\u3042\u308b\u5834\u5408\u3092\u8003\u3048\u307e\u3059\u3002\u3053\u306e\u3068\u304d\u3001\u30d6\u30ed\u30c3\u30db\u58c1\u306e\u539a\u3055 $\\delta$ \u306f\u6b21\u306e\u3088\u3046\u306b\u8a08\u7b97\u3055\u308c\u307e\u3059\uff1a<\/p>\n<p>\\[<br \/>\n\\delta = \\pi \\sqrt{\\frac{10^{-11}}{10^4}}<br \/>\n\\]<\/p>\n<p>\u6b21\u306b\u3053\u308c\u3092\u8a08\u7b97\u3057\u307e\u3059\uff1a<\/p>\n<p>\\[<br \/>\n\\delta = \\pi \\sqrt{10^{-15}} = \\pi \\times 10^{-7.5} \\approx 3.14 \\times 10^{-7.5}<br \/>\n\\]<\/p>\n<p>\u3053\u308c\u306b\u3088\u308a\u3001\u30d6\u30ed\u30c3\u30db\u58c1\u306e\u539a\u3055\u306f\u5927\u4f53 $3.14 \\times 10^{-7.5} \\, \\text{m}$\u3001\u3059\u306a\u308f\u3061\u304a\u304a\u3088\u305d $3.14 \\times 10^{-8} \\, \\text{m}$ \u307e\u305f\u306f $31.4 \\, \\text{nm}$ \u3067\u3059\u3002<\/p>\n<h2> \u307e\u3068\u3081 <\/h2>\n<p>\u30d6\u30ed\u30c3\u30db\u58c1\u306e\u539a\u3055\u306f\u3001\u4ea4\u63db\u76f8\u4e92\u4f5c\u7528\u5b9a\u6570\u3068\u7570\u65b9\u6027\u5b9a\u6570\u306e\u6bd4\u7387\u306b\u3088\u3063\u3066\u6c7a\u5b9a\u3055\u308c\u307e\u3059\u3002\u3053\u306e\u5f0f\u3092\u7528\u3044\u308b\u3053\u3068\u3067\u3001\u78c1\u6027\u4f53\u306e\u7279\u6027\u3092\u7406\u89e3\u3057\u3001\u3055\u3089\u306b\u306f\u6750\u6599\u306e\u8a2d\u8a08\u3084\u5fdc\u7528\u306b\u5f79\u7acb\u3066\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u30d6\u30ed\u30c3\u30db\u58c1\u306e\u6982\u5ff5\u306f\u3001\u78c1\u6027\u4f53\u7269\u7406\u5b66\u306b\u304a\u3051\u308b\u57fa\u790e\u7684\u306a\u77e5\u8b58\u3067\u3042\u308a\u3001\u5fdc\u7528\u7bc4\u56f2\u3082\u5e83\u3044\u305f\u3081\u3001\u7406\u89e3\u3057\u3066\u304a\u304f\u3068\u975e\u5e38\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u30d6\u30ed\u30c3\u30db\u58c1\u306e\u539a\u3055\u3068\u305d\u306e\u8a08\u7b97\u65b9\u6cd5\u306b\u3064\u3044\u3066\u89e3\u8aac\u3002\u4ea4\u63db\u76f8\u4e92\u4f5c\u7528\u5b9a\u6570\u3068\u7570\u65b9\u6027\u5b9a\u6570\u3092\u7528\u3044\u305f\u5177\u4f53\u7684\u306a\u8a08\u7b97\u4f8b\u3082\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_generate-full-width-content":"","footnotes":""},"categories":[96],"tags":[97],"class_list":["post-209088","post","type-post","status-publish","format-standard","hentry","category-96","tag-97","generate-columns","tablet-grid-50","mobile-grid-100","grid-parent","grid-50"],"yoast_head":"<!-- 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