Nguyen, THY Yi, HJ Joo, SJ Lee, JH Shin, KH Kim, TW 2024-01-21T05:04:02Z 2024-01-21T05:04:02Z 2021-09-01 2005-05-15 0021-8979 https://pubs.kist.re.kr/handle/201004/136469 The current-induced magnetization reversal (CIMR) effect in nanosized exchange-biased spin valves (EBS) of IrMn/Co(1)/Cu/Co(2) is investigated. The CIMR is studied at RT. With our EBS structure, the critical current can be lowered to 7.5 X 10(6) A/cm(2), which is rather smaller than that in the conventional simple spin valves (SS) Co(1)/Cu/Co(2). This effect can be attributed to the enhancement of spin transfer efficiency by using antiferromagnetic pinning layer in that structure. However, the absolute change in total resistance of EBS, in comparison to that of SS with similar layer thickness, is not increased, as the nearly unpatterned fixed Co layer is pinned. The results are discussed in terms of current induced spin transfer and current induced thermal activation. (c) 2005 American Institute of Physics. English AMER INST PHYSICS TUNNEL-JUNCTIONS Reduction in critical current of current-induced switching in exchange-biased spin valves Article 10.1063/1.1853279 1 JOURNAL OF APPLIED PHYSICS, v.97, no.10 JOURNAL OF APPLIED PHYSICS 97 10 scie scopus 000230168300164 2-s2.0-20944441269 Physics, Applied Physics Article; Proceedings Paper TUNNEL-JUNCTIONS current-driven exchange-biased spin valve