상세정보
학술지
Influence of the Nano-oxide Layer Position on Magnetoresistance Ratio and Magnetic Properties in Spin Valves
- 저자
- 서정대, C. A. Ross
- 발행일
- 200712
- 출처
- Physica Status Solidi (B), v.244 no.12, pp.4474-4477
- ISSN
- 0370-1972
- 출판사
- Wiley-VCH Verlag GmbH
- 협약과제
- 08MC1600, 나노 입자를 이용한 고성능 바이오 센서 시스템, 정명애
- 초록
- We have investigated the influence of nano-oxide layer position on magnetoresistance of the NiFe/Cu/Co/Cu spin valves. We found that the giant magnetoresistance (GMR) ratio, magnetic coercivity and surface roughness were strongly dependent on the nano-oxide layer positions. For nano-oxide layer positions from the bottom to top part of spin valve, the GMR ratio varied from 2.8 % to 0.15 % depending on the position of the nano-oxide layer within the spin valves. It was also found that the nano- oxide layer(NOL) position affect the surface roughness and magnetic coercivity significantly. Variation of the GMR ratio with nano-oxide layer position can be explained well by the variation of the spin electron transport confinement due to the specular reflection effect of the nano-oxide layer. © 2007 WILEY-VCH Verlag GmbH & Co. KGaA.
- KSP 제안 키워드
- Co. KGaA, Electron Transport, Giant magnetoresistance(GMR), Magnetoresistance ratio, Nano-oxide layer, Spin valve, Spin valves, Surface roughness, magnetic coercivity, magnetic properties, specular reflection