Author/Authors :
Zhang، نويسنده , , Zhaogang and Hao، نويسنده , , Shenfen and Zhang، نويسنده , , Yong and Wang، نويسنده , , Liangmin and Yu، نويسنده , , Tian and Li، نويسنده , , Xingqing and Li، نويسنده , , Dingguo and Wu، نويسنده , , G.H. and Zhang، نويسنده , , X.X. and Li، نويسنده , , Qiling and Chen، نويسنده , , Peng، نويسنده ,
Abstract :
Fe/In multilayers were prepared by the DC magnetron sputtering method, and their electrical and magnetic properties were studied. Negative giant magnetoresistance (GMR) with a maximum of −0.84% at 10 K was observed. The magnitude of GMR and the saturation field ( H s ) were found to oscillate with a period about 1.3 nm when varying the thickness of In layers. Atomic force microscope images of samples were taken to investigate the surface morphology. The GMR effect is composed of antiferromagnetic coupling between the neighboring Fe layers and superparamagnetic spins effect at the Fe/In interface. A reduction of the anomalous GMR effect with decreasing temperature is presented.
Keywords :
A. Multilayers , D. Giant magnetoresistance , D. Oscillation , D. Superparamagnetic spin
