Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference (한국전기전자재료학회:학술대회논문집)
- 2005.05a
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- Pages.150-152
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- 2005
Emission of spin-polarized light in GaN-based spin LEDs
GaN계 스핀 발광소자의 스핀편극된 빛의 발광
- Ham, Moon-Ho (Yonsei Uni.) ;
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Yoon, Suk-Ho
(Yonsei Uni.)
;
- Park, Yong-Jo (SAIT) ;
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Myoung, Jae-Min
(Yonsei Uni.)
- Published : 2005.05.13
Abstract
We investigated the fabrication and characteristics of spin-polarized LEDs based on GaN using (Ga,Mn)N as spin injection source. (Ga,Mn)N thin films were found to exhibit the ferromagnetic ordering above room temperature and the negative MR up to room temperature. The electrical characteristics in spin LEDs did not degraded in spite of the insertion of (Ga,Mn)N films. In EL spectra of spin LEDs, it is confirmed that spin LEDs emit the strong light at 7 K as well as room temperature. These results suggest that it is possible to emit spin-polarized light in our spin LEDs.