• Àüü
  • ÀüÀÚ/Àü±â
  • Åë½Å
  • ÄÄÇ»ÅÍ
´Ý±â

»çÀÌÆ®¸Ê

Loading..

Please wait....

±¹³» ³í¹®Áö

Ȩ Ȩ > ¿¬±¸¹®Çå > ±¹³» ³í¹®Áö > Çѱ¹Á¤º¸Åë½ÅÇÐȸ ³í¹®Áö (Journal of the Korea Institute of Information and Communication Engineering)

Çѱ¹Á¤º¸Åë½ÅÇÐȸ ³í¹®Áö (Journal of the Korea Institute of Information and Communication Engineering)

Current Result Document :

ÇѱÛÁ¦¸ñ(Korean Title) ¿­Ã³¸® °øÁ¤°ú ºñ½º¹«½º ¹Ú¸·ÀÇ °áÁ¤±¸Á¶ ¹× ÀÚ±âÀúÇ× Æ¯¼ºº¯È­¿ÍÀÇ ¹°¸®Àû °ü°è
¿µ¹®Á¦¸ñ(English Title) Physical correlation between annealing process and crystal structure and magneto-resistance of Bismuth thin films
ÀúÀÚ(Author) Àå¼®¿ì   ¼­¿µÈ£   ¾ÈÈ£¸í   Seok Woo Jang   Young-Ho Seo   Ho-Myoung An  
¿ø¹®¼ö·Ïó(Citation) VOL 18 NO. 03 PP. 0638 ~ 0642 (2014. 03)
Çѱ۳»¿ë
(Korean Abstract)
º» ¿¬±¸¿¡¼­´Â ºñ½º¹«½º(Bi) ¹Ú¸·ÀÇ ½ºÇÉÀüÀÚ¼ÒÀÚ·ÎÀÇ ÀÀ¿ë°¡´É¼ºÀ» È®ÀÎÇϱâ À§Çؼ­ ¿­Ã³¸® °øÁ¤¿¡ ÀÇÇÑ ºñ½º¹«½º ¹Ú¸·ÀÇ °áÁ¤ ±¸Á¶ ¹× ÀÚ±âÀúÇ׺¯È­¸¦ Á¶»çÇÏ¿´´Ù. ºñ½º¹«½º ¹Ú¸·Àº Ãʱ⿡ °áÁ¤¼ºÀÌ ¾øÀÌ ¾à 100 nmÀÇ °áÁ¤¸³°ú ³·Àº ÀÚ±âÀúÇ× ºñ(MR)°¡ »ó¿Â¿¡¼­ 4.7 % ·Î º¸¿´À¸³ª, ¿­Ã³¸® °øÁ¤ ÈÄ °áÁ¤¸³ÀÌ È®ÀåµÇ°í ¹æÀ§ÀÇ Àç¹è¿­ÀÌ ÀϾ¸ç °áÁ¤¸³ÀÌ Çü¼º µÇ¾ú°í, ÀÌ·Î ÀÎÇؼ­ ÀÚ±âÀúÇ× ºñ°¡ »ó¿Â¿¡¼­ 404 %·Î Å©°Ô Çâ»ó µÇ¾ú´Ù. ÀÌ·¯ÇÑ ÀÚ±âÀúÇ× ºñÀÇ Å« Çâ»óÀº Å©°Ô È®ÀåµÈ °áÁ¤¸³À¸·Î ÀÎÇؼ­ ½ºÇÉÀÇ Æò±Õ»ê¶õ½Ã°£ÀÌ Å©°Ô Áõ°¡Ç߱⠶§¹®ÀÌ´Ù. º» ¿¬±¸¸¦ ÅëÇؼ­ ¿­Ã³¸® °øÁ¤ÀÌ ºñ½º¹«½º ¹Ú¸·ÀÇ °áÁ¤¸³ Çü¼º ¹× ÀÚ±âÀúÇ× ºñÀÇ Çâ»ó¿¡ Å« ¿µÇâÀ» º¸ÀÓÀ» È®ÀÎÇÏ¿´°í, ºñ½º¹«½º ¹Ú¸·ÀÇ ½ºÇÉÀüÀÚ¼ÒÀڷμ­ÀÇ ÀÀ¿ë °¡´É¼ºÀ» Áõ¸íÇÏ¿´´Ù.
¿µ¹®³»¿ë
(English Abstract)
In this study, we investigate on the crystal microstructure and magneto-resistance (MR) change of Bismuth(Bi) thin films for annealing process, in order to apply Bi thin films to the spin electronic devices. As-prepared Bi thin films show the randomly oriented find grains whose size was measured to about 100 nm and the very low MR (4.7 % at room temperature) while careful annealing results in not only grain growth up to ~ 2 ¥ìm but also drastic MR improvement (404 % at room temperature). The drastic change in the MR after applying the annealing process is attributed to the grain growth decreasing grain boundary scattering of electron. Therefore, in this study, we confirm the annealing effect for the grain boundary formation and MR improvement of Bi thin films, and demonstrate the feasibility of spin electronic devices.
Å°¿öµå(Keyword) ¿­Ã³¸®   ºñ½º¹«½º   °áÁ¤¸³   ÀÚ±âÀúÇ×   Annealing   Bismuth(Bi)   Grain boundary   Magneto-resistance  
ÆÄÀÏ÷ºÎ PDF ´Ù¿î·Îµå