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[Pd / Co]5 / FeMn 막에서의 바닥층과 삽입층에 의한 교환바이어스수직자기이방성
주호완(Ho Wan Joo),안진희(Jin Hee An),이미선(Mi Sun Lee),김보근(Bo Keun Kim),최상대(Sang Dea Choi),이기암(Kee Am Lee) 한국자기학회 2004 韓國磁氣學會誌 Vol.14 No.5
Magnetic properties by exchange biased perpendicular magnetic anisotropy in [Pd(0.8 ㎚)/Co(0.8 ㎚)]_5/FeMn(15 ㎚) multilayers deposited by dc magnetron sputtering system are investigated. As inserted Pd layer of interface between [Pd/Co] multilayer and FeMn film, the Hex of perpendicular anisotropy was improved from 127 Oe to 145 Oe. But result of an experiment by thermal stability, the Hex of the case that an inserted layer was inserted in decreased from low 200℃ in about 50℃ more if not inserted. If Ta was a buffer layer, the experiment results along material of buffer layer, the Hex obtained the largest 127 Oe. And if Pd was a buffer layer, Hex obtained the largest 169 Oe. Also, the Hc in buffer layer of Ta and Pd obtained the largest 203 Oe and 453 Oe, respectively.