简介概要

Preparation and Properties of Amorphous NiFe/Cu/NiFe Thin Films

来源期刊:材料保护2004年增刊第2期

论文作者:JIANG Ya-dong YE Yun ZENG Hong-juan HU Wen-cheng

关键词:electroplating; permalloy; amorphous; GMI effect;

摘    要:The amorphous of Permalloy on the copper subtract was studied using composite electroplating method. A portion of hydrogen brings the counteraction on the surface of cathode leading nickel-iron alloys to be anomalous in the process of co-depositing. The results of X-ray diffraction (XRD) show that the Ni-Fe alloys layer is amorphous. The Giant Magneto -Impedance (GMI) effect of Ni-Fe alloys was obtained under the optimal conditions, dependence on the soft magnetic property of Ni-Fe amorphous thin film. As a result, the ratios△ Z/Z of NiFe/Cu/NiFe amorphous thin film are 30% at 40 kHz which is in low frequency. Furthermore, the GMI value of NiFe/Cu/NiFe amorphous thin film with a sandwich structure is higher than that of single-layer ferromagnetic films of the same thickness.

详情信息展示

Preparation and Properties of Amorphous NiFe/Cu/NiFe Thin Films

JIANG Ya-dong1,YE Yun1,ZENG Hong-juan1,HU Wen-cheng2

(1.School of Optoelectronic Information, University of Electronic Science and Technology of China, Chengdu 610054;
2.School of Microelectronics and Solidstate Electronics, University of ElectronicScience and Technology of China, Chengdu 610054, China)

摘要:The amorphous of Permalloy on the copper subtract was studied using composite electroplating method. A portion of hydrogen brings the counteraction on the surface of cathode leading nickel-iron alloys to be anomalous in the process of co-depositing. The results of X-ray diffraction (XRD) show that the Ni-Fe alloys layer is amorphous. The Giant Magneto -Impedance (GMI) effect of Ni-Fe alloys was obtained under the optimal conditions, dependence on the soft magnetic property of Ni-Fe amorphous thin film. As a result, the ratios△ Z/Z of NiFe/Cu/NiFe amorphous thin film are 30% at 40 kHz which is in low frequency. Furthermore, the GMI value of NiFe/Cu/NiFe amorphous thin film with a sandwich structure is higher than that of single-layer ferromagnetic films of the same thickness.

关键词:electroplating; permalloy; amorphous; GMI effect;

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