[7p-PB7-1~56] 10 スピントロニクス・マグネティクス（ポスター）

▲ [7p-PB7-16] Fabrication of quasi antiferromagnetic layer by 90°magnetic coupling through magnetic oxide layer

〇Yudai Hirayama¹、Gen Nagashima¹、Yuichiro Kurokawa¹、Hiromi Yuasa¹ (1.Kyushu Univ.)

キーワード：90 degree magnetic coupling, Quasi Anti-ferromagnetic layer

It has been theoretically reported that Spin transfer torques (STT) in antiferromagnetic (AFM) materials should be obtained and the supporting experimental evidences have been reported. STT in AFM can realize a spin torque oscillation (STO) without a stray field, which is expected to expand the STO applications. However, STT in AFM has never observed directly because it needs a higher critical energy than a typical STT in ferromagnetic (FM) materials. Therefore, we try to fabricate “quasi” AFM layer, which takes a middle state between FM and AFM, by using 90° magnetic coupling through Fe-O layer.