Introduction
½ºÇÉ-ÀüÀÚ
¹°¼º ¿¬±¸½Ç(Spin-electron Physics Lab.)¿¡¼´Â ½ºÇÉ°ú
ÀüÀÚÀÇ Æ¯¼º°ú °ü·ÃµÈ Èï¹Ì·Î¿î
¹°¼ºÀ» º¸ÀÌ´Â
¹Ú¸· ½Ã·á¸¦ Á¦ÀÛÇÏ°í ´Ù¾çÇÑ
¹°¸®Àû Ư¼º°ú ÀÀ¿ë¼ºÀ» ¿¬±¸ÇÑ´Ù. º»
¿¬±¸½Ç¿¡¼´Â ƯÈ÷ ¹°ÁúÀÇ °áÁ¤±¸Á¶, °ÝÀÚº¯Çü, Ç¥¸é ¹× °è¸é, ÀüÇÏ Á¤·Ä, ½ºÇÉ
Á¤·Ä µî°ú °ü·ÃµÈ Èï¹Ì·Î¿î ¹°¼º¿¡ °ü½ÉÀ» °®°í ¿¬±¸¸¦
¼öÇàÇÏ¿© ±â´É¼º ¹Ú¸·ÀÇ °íÀ¯ÇÑ ¹°¸®Àû Ư¼ºÀ» ÀÌÇØÇÏ°í À̸¦ ÀÌ¿ëÇÑ ÀÀ¿ë¼ÒÀÚÀÇ °³¹ß¿¡ ±â¿©ÇÏ°íÀÚ ÇÑ´Ù.
º» ¿¬±¸½Ç¿¡¼´Â ½ºÇÉ-ÀüÀÚ
¹°ÁúÀÇ ¹Ú¸·È¿¡ µû¶ó ´Ù°áÁ¤¼º
¹Ú¸·, ¿¡ÇÇŹ½Ã(epitaxy) ¹Ú¸·,
ÇìÅ׷α¸Á¶(Heterostructure)
¹Ú¸·, ¿øÀÚ¼öÁØ¿¡¼ ÆòźÇÑ Ç¥¸é
¹× °è¸éÀ» °®´Â ¹Ú¸·, ÀÌÃþ¹Ú¸·,
´ÙÃþ¹Ú¸· µîÀ¸·Î Á¦ÀÛÇϸç,
¹°¸®Àû Ư¼º¿¡ µû¶ó ÀÚ¼ºÃ¼
´ÙÃþ¹Ú¸·, ³ÐÀº º¥µå°¸ ¹ÝµµÃ¼¼º ¹Ú¸·,
ÃÊ°Å´ëÀÚ±âÀúÇ×(CMR)
¹Ú¸·, ´Ù°Ã¼(multiferroics) ¹Ú¸·, Åõ¸í Àüµµ¼º »êȹ°(transparent
conducting oxides) ¹Ú¸·, °À¯Àüü ¹Ú¸·, ÃÊÀüµµ¼º ¹Ú¸· µî ´Ù¾çÇÑ ±â´É¼º ¹Ú¸·¿¡ ´ëÇØ ¿¬±¸¸¦
¼öÇàÇÏ°í
ÀÖ´Ù. ¹Ú¸·ÀÇ
Ç¥¸éÇü»ó°ú °áÁ¤¹æÇâ¿¡ µû¸¥ ºñµî¹æÀû
¹°¼º, ÇìÅ׷ιڸ·ÀÇ °è¸é¹°¼º(¼îÅ°À庮,
p/nÁ¢ÇÕ), ¹ÝµµÃ¼¼º ¹Ú¸·ÀÇ È¦
È¿°ú(Hall effect), ÀÚ¼ºÃ¼ ¹Ú¸·ÀÇ
¼öÁ÷ ÀÚ±â À̹漺(PMA)°ú º¯Ä¢
Ȧ È¿°ú(Anomalous Hall effect), ºûÀ» Á¶»çÇÔ¿¡ µû¸¥ ±¤À¯µµ
¹°¼º(±¤Àüµµ¼º,
±¤±âÀü·ÂÈ¿°ú) µî¿¡ ´ëÇÑ ¿¬±¸µµ ¼öÇàÇÏ°í ÀÖ´Ù. À̵é
¹Ú¸·¹°ÁúÀº ½Å³»³ä ÀüÀÚ¼ÒÀÚ, Àڱ⠼ÒÀÚ, ±¤ÀüÀÚ¼ÒÀÚ µî¿¡
ÀÀ¿ëµÉ ¼ö ÀÖÀ¸¸ç ¾ÕÀ¸·Î »õ·Î¿î ´Ù±â´É¼º ¼ÒÀÚ(multifunctional devices)ÀÇ °³¹ß¿¡µµ
ÀÌ¿ëµÉ °ÍÀ¸·Î ±â´ëµÈ´Ù. ¿¬±¸´Â Àü±â·Î¸¦ ÀÌ¿ëÇÑ Å¸°Ù
Á¦ÀÛ, ½ºÆÛÅ͸µ
¹× ÆÞ½º·¹ÀÌÀúÁõÂø¹ý(PLD)À» ÀÌ¿ëÇÏ¿© ¹Ú¸·
Á¦ÀÛ, X-¼±È¸Àý, ¿øÀÚÈûÇö¹Ì°æ(AFM), ±¤ÀÚ±â Kerr È¿°ú, ÀÚ±âÈûÇö¹Ì°æ(MFM), ÁÖ»çÀüÀÚÇö¹Ì°æ(SEM), ÇÙÀÚ±â°ø¸í(MMR), Áß¼ºÀÚȸÀý µîÀÇ
ÃøÁ¤±â¼úÀ» ÀÌ¿ëÇÑ ¹°¼ººÐ¼® ½ÇÇèÀ»
¼öÇàÇÑ´Ù.
Research
field
1.
Spin-electronic materials : magnetic
multilayers, magnetic oxides,
dielectric oxides, superconducting
oxides, transparent conducting
oxides, wide band-gap semiconductors
...
2.
Device
applications :
semiconducting device(Schottky diodes,
Hall effect, I-V, C-V), spintronic devices(MR,
PMA, Anomalous Hall effect),
optoelectronic
devices, Resistance switching
devices...
3.
Nano physics : AFM, MOKE
microscopy, MFM, SEM, TEM,
Nuclear Magnetic Resonance,
Neutron diffraction...
4.
Interface
physics :
heterostructurs, nano
composites...
5.
Light induced physics : Photovoltaic
effect, Photoconductance,
Photo
carrier injection...
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