{"id":147159,"date":"2024-04-27T13:30:38","date_gmt":"2024-04-27T13:30:38","guid":{"rendered":"https:\/\/www.electricity-magnetism.org\/%ec%8a%a4%ed%8a%b8%eb%a1%a0%ed%8a%ac-%ed%83%80%ec%9d%b4%ed%83%80%eb%84%a4%ec%9d%b4%ed%8a%b8-sto-%ed%8e%98%eb%a1%9c-%ec%a0%84%ea%b8%b0-%ec%9e%ac%eb%a3%8c%eb%a1%9c%ec%84%9c\/"},"modified":"2024-04-27T13:30:38","modified_gmt":"2024-04-27T13:30:38","slug":"%ec%8a%a4%ed%8a%b8%eb%a1%a0%ed%8a%ac-%ed%83%80%ec%9d%b4%ed%83%80%eb%84%a4%ec%9d%b4%ed%8a%b8-sto-%ed%8e%98%eb%a1%9c-%ec%a0%84%ea%b8%b0-%ec%9e%ac%eb%a3%8c%eb%a1%9c%ec%84%9c","status":"publish","type":"post","link":"https:\/\/www.electricity-magnetism.org\/ko\/%ec%8a%a4%ed%8a%b8%eb%a1%a0%ed%8a%ac-%ed%83%80%ec%9d%b4%ed%83%80%eb%84%a4%ec%9d%b4%ed%8a%b8-sto-%ed%8e%98%eb%a1%9c-%ec%a0%84%ea%b8%b0-%ec%9e%ac%eb%a3%8c%eb%a1%9c%ec%84%9c\/","title":{"rendered":"\uc2a4\ud2b8\ub860\ud2ac \ud0c0\uc774\ud0c0\ub124\uc774\ud2b8 (STO) \ud398\ub85c \uc804\uae30 \uc7ac\ub8cc\ub85c\uc11c"},"content":{"rendered":"

\uc2a4\ud2b8\ub860\ud2ac \ud0c0\uc774\ud0c0\ub124\uc774\ud2b8(STO)\ub294 \ud398\ub85c\uc804\uae30\uc131\uc744 \ub098\ud0c0\ub0b4\ub294 \uc138\ub77c\ubbf9 \uc7ac\ub8cc\ub85c\uc11c \uba54\ubaa8\ub9ac \uc18c\uc790, \uc13c\uc11c, \ucee4\ud328\uc2dc\ud130 \ub4f1\uc5d0 \uc751\uc6a9 \uac00\ub2a5\ud569\ub2c8\ub2e4.<\/p>\n

\"\uc2a4\ud2b8\ub860\ud2ac<\/p>\n

\uc2a4\ud2b8\ub860\ud2ac \ud0c0\uc774\ud0c0\ub124\uc774\ud2b8 (STO) \ud398\ub85c \uc804\uae30 \uc7ac\ub8cc\ub85c\uc11c\uc758 \uae30\ubcf8 \uac1c\ub150<\/h2>\n

\ucd5c\uadfc \uacfc\ud559\uae30\uc220\uc758 \ubc1c\uc804\uc73c\ub85c \uc7ac\ub8cc \uacfc\ud559 \ubd84\uc57c\uc5d0\uc11c \ub9ce\uc740 \uad00\uc2ec\uc744 \ubc1b\uace0 \uc788\ub294 \uc2a4\ud2b8\ub860\ud2ac \ud0c0\uc774\ud0c0\ub124\uc774\ud2b8(Strontium Titanate, \uc904\uc5ec\uc11c STO)\ub294 \ud2b9\uc774\ud55c \uc804\uae30\uc801 \uc131\uc9c8\uc744 \uc9c0\ub2cc \uc138\ub77c\ubbf9 \uc7ac\ub8cc\uc785\ub2c8\ub2e4. \ud2b9\ud788, STO\ub294 \ud398\ub85c\uc804\uae30\uc131\uc744 \ub098\ud0c0\ub0b4\ub294 \ubb3c\uc9c8\ub85c \ub9ce\uc740 \uc5f0\uad6c\uac00 \uc9c4\ud589\ub418\uace0 \uc788\uc73c\uba70, \uc774\ub294 \uc804\uc790\uae30\uae30, \uc13c\uc11c, \uba54\ubaa8\ub9ac \ub514\ubc14\uc774\uc2a4\uc758 \uae30\ub2a5\uc744 \ud601\uc2e0\uc801\uc73c\ub85c \uac1c\uc120\ud560 \uc218 \uc788\ub294 \uac00\ub2a5\uc131\uc744 \ub0b4\ud3ec\ud558\uace0 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n

\uc774 \uae00\uc5d0\uc11c\ub294 \ud398\ub85c\uc804\uae30 \uc7ac\ub8cc\ub85c\uc11c\uc758 STO\uc5d0 \ub300\ud55c \uae30\ucd08\uc801\uc778 \uc774\ud574\ub97c \ub3d5\uae30 \uc704\ud574 STO\uc758 \uc131\uc9c8, \uc791\ub3d9 \uc6d0\ub9ac, \uadf8\ub9ac\uace0 \uc774\ub97c \uc774\uc6a9\ud55c \uc751\uc6a9\ubd84\uc57c\uc5d0 \ub300\ud574 \uc54c\uc544\ubcf4\uaca0\uc2b5\ub2c8\ub2e4. \ud398\ub85c\uc804\uae30\uc131\uc774\ub780 \ubb3c\uc9c8 \ub0b4\ubd80\uc5d0 \uc790\ubc1c\uc801\uc778 \uc804\uae30 \ubd84\uadf9\uc774 \uc874\uc7ac\ud558\ub294 \uc131\uc9c8\uc744 \ub9d0\ud569\ub2c8\ub2e4. \uc774\ub7ec\ud55c \ubd84\uadf9\uc740 \uc678\ubd80 \uc804\uacc4\ub97c \uac00\ud568\uc73c\ub85c\uc368 \ubc29\ud5a5\uc744 \ubcc0\uacbd\ud560 \uc218 \uc788\uc73c\uba70, \uc804\uacc4\ub97c \uc81c\uac70\ud574\ub3c4 \uc6d0\ub798 \uc0c1\ud0dc\ub85c \ub3cc\uc544\uac00\ub824\ub294 \uc794\ub958 \ubd84\uadf9\uc774 \uc874\uc7ac\ud569\ub2c8\ub2e4. \uc774\ub294 \ub9c8\uce58 \uc790\uc11d\ucc98\ub7fc \uc790\ubc1c\uc801\uc778 \ubd84\uadf9\uc744 \uac00\uc9c0\ub294 ‘\ud398\ub85c\uc790\uae30\uc131’\uacfc \uc720\uc0ac\ud55c \uc131\uc9c8\uc785\ub2c8\ub2e4.<\/p>\n

STO\ub294 \ub8e8\ud14c\ud2ac \ud2f0\ud0c0\ub124\uc774\ud2b8 (BaTiO3<\/sub>)\uc640 \uac19\uc740 \uc804\ud615\uc801\uc778 \ud398\ub85c\uc804\uae30 \ubb3c\uc9c8\uacfc\ub294 \ub2ec\ub9ac, \uc808\ub300 \uc601\ub3c4 \uadfc\ucc98\uc5d0\uc11c\ub9cc \ubd84\uadf9 \uc0c1\ud0dc\ub97c \uac00\uc9c0\uba70, \uc0c1\uc628\uc5d0\uc11c\ub294 \ud398\ub85c\uc804\uae30\uc131\uc744 \ubcf4\uc774\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4. \ud558\uc9c0\ub9cc \ud2b9\ubcc4\ud55c \uc870\uac74\uc5d0\uc11c STO\ub294 \uc0c1\uc628\uc5d0\uc11c\ub3c4 \ubd84\uadf9 \uc0c1\ud0dc\ub97c \uc720\uc9c0\ud560 \uc218 \uc788\uc73c\uba70, \uc774\ub7ec\ud55c \ud2b9\uc131 \ub54c\ubb38\uc5d0 \ud398\ub85c\uc804\uae30 \uba54\ubaa8\ub9ac \ubc0f \uae30\ud0c0 \uc804\uc790\uae30\uae30\uc5d0 \uc911\uc694\ud55c \uc5ed\ud560\uc744 \ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n

STO\uc758 \ud575\uc2ec\uc801\uc778 \ud398\ub85c\uc804\uae30\uc801 \uc131\uc9c8\uc740 \uc678\ubd80 \uc804\uacc4\ub97c \ud1b5\ud574 \uc81c\uc5b4\ub420 \uc218 \uc788\uc73c\uba70, \uc774\ub294 STO\ub97c \uc774\uc6a9\ud55c \uc804\uc790\uae30\uae30\uc758 \uc791\ub3d9 \uc6d0\ub9ac\uc640 \uc9c1\uacb0\ub429\ub2c8\ub2e4. \uc608\ub97c \ub4e4\uc5b4, STO \ud398\ub85c\uc804\uae30 \uc7ac\ub8cc\ub97c \uc774\uc6a9\ud55c \uba54\ubaa8\ub9ac \uc18c\uc790\ub294 \uc678\ubd80 \uc804\uacc4\uc758 \ubcc0\ud654\uc5d0 \ub530\ub77c \ub370\uc774\ud130\uc758 ‘0’\uacfc ‘1’\uc744 \uc800\uc7a5\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc804\uacc4\uac00 \uc801\uc6a9\ub418\uba74 STO \ub0b4\ubd80\uc758 \ubd84\uadf9 \ubc29\ud5a5\uc774 \ubc14\ub00c\uace0, \uc774 \uc0c1\ud0dc\uac00 \uc804\uacc4\ub97c \uc81c\uac70\ud55c \ud6c4\uc5d0\ub3c4 \uc720\uc9c0\ub418\uc5b4 \uc815\ubcf4\uac00 \uae30\ub85d\ub429\ub2c8\ub2e4.<\/p>\n

\ub610\ud55c, STO\ub294 \ub6f0\uc5b4\ub09c \uc720\uc804\uc131\ub2a5\uc744 \uac00\uc9c0\uace0 \uc788\uc5b4, \ucee4\ud328\uc2dc\ud130\uc640 \uac19\uc740 \uc7a5\uce58\uc5d0\uc11c\ub3c4 \uc774\uc810\uc774 \uc788\ub2e4. \uc720\uc804\uccb4\ub294 \uc804\uae30\ub97c \ucd95\uc801\ud558\ub294 \ub2a5\ub825\uc744 \uac00\uc9c0\uace0 \uc788\ub294\ub370, STO\ub294 \ub192\uc740 \uc720\uc804\uc728(dielectric constant)\uc744 \uac00\uc9c0\ubbc0\ub85c \ub354 \ub9ce\uc740 \uc804\uae30\ub97c \ucd95\uc801\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774\ub7ec\ud55c \uc131\uc9c8\uc740 STO\ub97c \uc774\uc6a9\ud558\uc5ec \ub354 \uc791\uc740 \ud06c\uae30\uc5d0\uc11c \ub354 \ub9ce\uc740 \uc804\uae30\ub97c \uc800\uc7a5\ud560 \uc218 \uc788\ub294 \ucee4\ud328\uc2dc\ud130\ub97c \ub9cc\ub4e4 \uc218 \uc788\uac8c \ud569\ub2c8\ub2e4.<\/p>\n

\uc9c0\uae08\uae4c\uc9c0 STO\uc758 \uae30\ubcf8\uc801\uc778 \ud398\ub85c\uc804\uae30\uc801 \uc131\uc9c8 \ubc0f \uba54\ubaa8\ub9ac \uc18c\uc790\uc640 \ucee4\ud328\uc2dc\ud130\uc5d0\uc11c\uc758 \uc751\uc6a9 \uac00\ub2a5\uc131\uc5d0 \ub300\ud574 \uc54c\uc544\ubcf4\uc558\uc2b5\ub2c8\ub2e4. \ub2e4\uc74c \ubd80\ubd84\uc5d0\uc11c\ub294 STO\uc758 \uad6c\uc870\uc640 \uc804\uae30\uc801 \uc131\uc9c8\uc5d0 \ub300\ud55c \uc880 \ub354 \uc0c1\uc138\ud55c \uc124\uba85\uacfc \ud568\uaed8, \ucd5c\uc2e0 \uc5f0\uad6c \ub3d9\ud5a5 \ubc0f \uacfc\uc81c\uc5d0 \ub300\ud574\uc11c\ub3c4 \ud0d0\uad6c\ud560 \uc608\uc815\uc785\ub2c8\ub2e4.<\/p>\n

STO\uc758 \uad6c\uc870\uc640 \uc804\uae30\uc801 \uc131\uc9c8<\/h2>\n

\uc2a4\ud2b8\ub860\ud2ac \ud0c0\uc774\ud0c0\ub124\uc774\ud2b8(STO)\ub294 \uacb0\uc815 \uad6c\uc870\uc5d0\uc11c \ud050\ube44\uceec(cubic) \ud398\ub85c\ube0c\uc2a4\uce74\uc774\ud2b8(perovskite) \uad6c\uc870\ub97c \uac00\uc9c0\uace0 \uc788\uc2b5\ub2c8\ub2e4. \uc774 \uad6c\uc870\ub294 \uac01\uac01\uc758 \ucf54\ub108\uc5d0\uc11c Ti4+<\/sup> \uc774\uc628\uc5d0 \uc758\ud574 \uad6c\uc131\ub418\ub294 \uc0b0\uc18c \uc774\uc628(O2-<\/sup>)\uc758 \uc815\uc721\uba74\uccb4\uc640 \uc911\uc2ec\uc5d0 \uc704\uce58\ud55c Sr2+<\/sup> \uc774\uc628\uc73c\ub85c \uc774\ub8e8\uc5b4\uc838 \uc788\uc2b5\ub2c8\ub2e4. \uc774\ub7ec\ud55c \ubc30\uc5f4 \ub355\ubd84\uc5d0 STO\ub294 \ub3c5\ud2b9\ud55c \uc804\uae30\uc801 \uc131\uc9c8\uc744 \ubcf4\uc774\uba70, \uc774 \uad6c\uc870\uc758 \ubcc0\ud654\ub294 \ubb3c\uc9c8\uc758 \ud398\ub85c\uc804\uae30\uc131\uc5d0 \uc911\uc694\ud55c \uc5ed\ud560\uc744 \ud569\ub2c8\ub2e4.<\/p>\n

STO\uc758 \ud398\ub85c\uc804\uae30\uc131\uacfc \uc720\uc804\uc131\ub2a5\uc740 \uc628\ub3c4\ubfd0\ub9cc \uc544\ub2c8\ub77c, \uc2a4\ud2b8\ub808\uc778(\uc778\uc7a5\ub825)\uc774\ub098 \ud654\ud559\uc801 \ub3c4\ud551(\ubd88\uc21c\ubb3c \ucca8\uac00)\uc5d0 \uc758\ud574\uc11c\ub3c4 \uc870\uc808\ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774\ub7ec\ud55c \uc678\ubd80 \uc694\uc778\ub4e4\uc740 STO\uc758 \uacb0\uc815 \uad6c\uc870\ub97c \ubcc0\ud615\uc2dc\ucf1c \uc804\uae30 \ubd84\uadf9\uc744 \uc720\ubc1c\ud558\uace0, \uacb0\uad6d \uadf8 \uc131\uc9c8\uc744 \uc870\uc808\ud560 \uc218 \uc788\uac8c \ud569\ub2c8\ub2e4. \ub530\ub77c\uc11c, \uc5f0\uad6c\uc790\ub4e4\uc740 STO\uc758 \ub2e4\uc591\ud55c \uc131\uc9c8\uc744 \uc774\ud574\ud558\uace0 \uc81c\uc5b4\ud558\uae30 \uc704\ud558\uc5ec \uc774\ub7ec\ud55c \uc694\uc778\ub4e4\uc744 \uc5f0\uad6c\ud558\uace0 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n

\ucd5c\uc2e0 \uc5f0\uad6c \ub3d9\ud5a5 \ubc0f \uacfc\uc81c<\/h2>\n

STO\uc758 \uace0\uc720 \ud2b9\uc131\uc744 \ud65c\uc6a9\ud558\uae30 \uc704\ud55c \uc5f0\uad6c\uac00 \ud65c\ubc1c\ud788 \uc9c4\ud589\ub418\uace0 \uc788\uc73c\uba70, \uadf8 \uc911\uc5d0\uc11c\ub3c4 \ub098\ub178\uae30\uc220\uc744 \ud1b5\ud55c STO\uc758 \ud2b9\uc131 \ud5a5\uc0c1\uc5d0 \ub300\ud55c \uc5f0\uad6c\uac00 \ub450\ub4dc\ub7ec\uc9d1\ub2c8\ub2e4. \ub098\ub178 \uc2a4\ucf00\uc77c\uc5d0\uc11c\uc758 STO\ub294 \uc885\uc885 \uc804\uae30\uc801 \uc131\uc9c8\uc774 \ud5a5\uc0c1\ub418\ub294 \ud604\uc0c1\uc744 \ubcf4\uc774\uba70, \uc774\ub97c \ud1b5\ud574 \ub354\uc6b1 \ud6a8\uc728\uc801\uc778 \uc804\uc790\uae30\uae30\ub97c \uc124\uacc4\ud560 \uc218 \uc788\uc744 \uac83\uc73c\ub85c \uae30\ub300\ub429\ub2c8\ub2e4.<\/p>\n

\ub610\ud55c, STO\uc758 \ud398\ub85c\uc804\uae30\uc131\uc744 \uc0c1\uc628\uc5d0\uc11c\ub3c4 \uc548\uc815\uc801\uc73c\ub85c \uc720\uc9c0\ud560 \uc218 \uc788\ub3c4\ub85d \ud558\ub294 \uac83\uc740 \uc5ec\uc804\ud788 \uc911\uc694\ud55c \uc5f0\uad6c \uacfc\uc81c\uc785\ub2c8\ub2e4. \uc774\ub97c \uc704\ud574, \ub2e4\uc591\ud55c \ud569\uae08\ud654 \uae30\ubc95\uacfc \ucd08\ubc15\ub9c9 \uae30\uc220\uc774 \uc801\uc6a9\ub418\uace0 \uc788\uc73c\uba70, \uc774\ub97c \ud1b5\ud574 STO\uc758 \uc801\uc6a9 \ubc94\uc704\ub97c \ub113\ud788\uace0\uc790 \ub178\ub825\ud558\uace0 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n

\ud558\uc9c0\ub9cc, STO\uc640 \uac19\uc740 \ud3d0\uc1c4\uc801(complex) \uc138\ub77c\ubbf9 \uc7ac\ub8cc\uc758 \ub300\ub7c9 \uc0dd\uc0b0 \ubc0f \uc0c1\uc5c5\uc801 \uc751\uc6a9\uc744 \uc704\ud574\uc11c\ub294 \uc5ec\uc804\ud788 \ud574\uacb0\ud574\uc57c \ud560 \uae30\uc220\uc801 \uacfc\uc81c\ub4e4\uc774 \ub9ce\uc2b5\ub2c8\ub2e4. \uc774\uc5d0 \ub300\ud55c \uc5f0\uad6c\uc640 \uac1c\ubc1c\uc740 STO\ub97c \ube44\ub86f\ud55c \ud398\ub85c\uc804\uae30 \uc7ac\ub8cc\ub4e4\uc758 \ubbf8\ub798\ub97c \uacb0\uc815\uc9d3\ub294 \uc911\uc694\ud55c \uc694\uc18c\uac00 \ub420 \uac83\uc785\ub2c8\ub2e4.<\/p>\n

\uacb0\ub860<\/h2>\n

\uc2a4\ud2b8\ub860\ud2ac \ud0c0\uc774\ud0c0\ub124\uc774\ud2b8(STO)\ub294 \uadf8 \ub3c5\ud2b9\ud55c \ud398\ub85c\uc804\uae30\uc801 \uc131\uc9c8\uacfc \uc720\uc804\uc131\ub2a5\uc73c\ub85c \uc5ec\ub7ec \uacfc\ud559\uae30\uc220 \ubd84\uc57c\uc5d0\uc11c \uc8fc\ubaa9\uc744 \ubc1b\uace0 \uc788\uc2b5\ub2c8\ub2e4. STO\uc758 \uc790\ubc1c\uc801\uc778 \uc804\uae30 \ubd84\uadf9\uacfc \uadf8 \uc870\uc808 \uac00\ub2a5\uc131\uc740 \uba54\ubaa8\ub9ac \uc18c\uc790, \uc13c\uc11c, \ucee4\ud328\uc2dc\ud130\uc640 \uac19\uc740 \ub2e4\uc591\ud55c \uc804\uc790\uae30\uae30\uc758 \uc131\ub2a5 \ud5a5\uc0c1\uc5d0 \uae30\uc5ec\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ub098\ub178\uae30\uc220\uacfc \ub2e4\uc591\ud55c \uacf5\uc815 \uae30\uc220\uc758 \ubc1c\uc804\uc73c\ub85c STO\uc758 \uc0c1\uc5c5\uc801 \uc751\uc6a9 \uac00\ub2a5\uc131\uc740 \uacc4\uc18d\ud574\uc11c \ud655\uc7a5\ub420 \uc608\uc815\uc785\ub2c8\ub2e4. \uadf8\ub7ec\ub098 \uc5ec\uc804\ud788 \ub9ce\uc740 \uacfc\uc81c\uac00 \ub0a8\uc544 \uc788\uc73c\uba70, \uc774\ub7ec\ud55c \ubb38\uc81c\ub4e4\uc744 \ud574\uacb0\ud558\uae30 \uc704\ud55c \uc9c0\uc18d\uc801\uc778 \uc5f0\uad6c\uc640 \ud601\uc2e0\uc774 \ud544\uc694\ud569\ub2c8\ub2e4. STO\ub97c \ube44\ub86f\ud55c \ud398\ub85c\uc804\uae30 \uc7ac\ub8cc\ub4e4\uc758 \ubbf8\ub798\ub294 \uc774\ub7ec\ud55c \ub178\ub825\uc5d0 \ub530\ub77c \ubc1d\uc744 \uac83\uc73c\ub85c \uae30\ub300\ub429\ub2c8\ub2e4.<\/p>\n","protected":false},"excerpt":{"rendered":"

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