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Fe/Cu/Co(사이층 교환 상호작용 비결합) 박막의 자기저항 효과
이장로,송은주 숙명여자대학교 자연과학연구소 1993 자연과학논문집 Vol.- No.4
Fe/Cu/Co/Cu sandwiches were prepared by successively depositing Cu(30Å), Co(50Å), Cu(60Å) and Fe(50Å) layers on glass and silicon substrates in a vacuum of 1 X 10 Torr. The sandwiches consisting of magnetic layers with different coercive fields and intervening non-magnetic layer. When a moderate magnetic field is applied. magnetizations of two ferrimagnetics became oriented antiparalled to each other. and the electric resistance increased significantly by spin-dependent electron scattering. We masured field-dependency of magnetoresistance by Wheat-stone bridge method. and tried to correspond the hysterisis curve of magnetoresistance with magnetic hysterisis curve by vibration sample magnetometer. The magnetoresistance ratio of Fe/Cu/Co/Cu sandwiches on glass and silicon was found to be 2.3% at room temperature.