MAGNETORESISTANCE EFFECT OBSERVED IN Fe/Mo MULTILAYERS PREPARED BY ELECTRON BEAM EVAPORATION
来源期刊：Acta Metallurgica Sinica2003年第3期
论文作者：F.Zeng F.Pan B.Zhao T.He Y.Gao
Key words：magnetoresistance; multilayer; antiferromagnetic interlayer coupling; nonmagnetic scattering;
Abstract: The Fe/Mo multilayers were prepared by electron beam evaporation, the microstructure and magnetic properties of the multilayers were studied by X-ray diffraction, vibratingsample magnetometer (VSM) et al. The experimental results revealed that the Fe/Mo multilayers in our experimental conditions behaved magnetoresistance effect with a sharp peak on magnetoresistance (MR) ratio curve, and magnetoresistance is easily saturated at low applied magnetic fields. For [Fe(1.5nm)/Mo(1.0nm)]42 multilayers,MR ratio could arrive to 0.1%. The antiferromagnetic interlayer coupling could be observed in some films at room temperature. The strength of the antiferromagnetic interlayer coupling J in the films is low because of the low saturation field Hs. The relationship between magnetic properties and microstructure was also discussed in this paper.
F.Zeng1，F.Pan1，B.Zhao1，T.He1，Y.Gao1
(1.Laboratory of Advanced Materials, Department of Materials Science and Engineering, Tsinghua University,Beijing,100084, China)
Abstract:The Fe/Mo multilayers were prepared by electron beam evaporation, the microstructure and magnetic properties of the multilayers were studied by X-ray diffraction, vibratingsample magnetometer (VSM) et al. The experimental results revealed that the Fe/Mo multilayers in our experimental conditions behaved magnetoresistance effect with a sharp peak on magnetoresistance (MR) ratio curve, and magnetoresistance is easily saturated at low applied magnetic fields. For [Fe(1.5nm)/Mo(1.0nm)]42 multilayers,MR ratio could arrive to 0.1%. The antiferromagnetic interlayer coupling could be observed in some films at room temperature. The strength of the antiferromagnetic interlayer coupling J in the films is low because of the low saturation field Hs. The relationship between magnetic properties and microstructure was also discussed in this paper.
Key words:magnetoresistance; multilayer; antiferromagnetic interlayer coupling; nonmagnetic scattering;
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