ELECTRODEPOSITION AND CHARACTERIZATION OF MAGNETIC NI-FE THIN-FILMS ON INP(100) SURFACES

被引：9

作者：

GAO, LJ ^{[1
]}

ANDERSON, GW ^{[1
]}

NORTON, PR ^{[1
]}

LU, ZH ^{[1
]}

MCCAFFREY, JP ^{[1
]}

GRAHAM, MJ ^{[1
]}

机构：

[1] NATL RES COUNCIL CANADA,INST MICROSTRUCT SCI,OTTAWA,ON K1A 0R6,CANADA

来源：

JOURNAL OF APPLIED PHYSICS | 1995年 / 78卷 / 09期

关键词：

D O I：

10.1063/1.359643

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Electrodeposited magnetic Ni-Fe films are used in storage devices and are applicable as magnetic sensors. In this work, we demonstrate the electrochemical conditions for deposition of permalloy Ni-Fe nanocrystalline films onto InP(100) surfaces. The prepared Ni-Fe films were analyzed by scanning electron microscopy to determine surface morphology and by Auger electron spectroscopy for compositional depth profiling. Permalloy films with bulk composition of 81% Ni and 18% Fe were obtained by electrodeposition at -1.2 V (versus standard calomel electrode) in a bath of 0.5 M NiSO4, 0.02 M FeSO4, 0.4 M H3BO3, pH=3. Transmission electron microscopy measurements show that these films consist of fee Ni-Fe nanocrystallites embedded in an amorphous matrix. The films also show good magnetic hysteresis loops, with low coercivity. The magnetic properties of these films are improved by an extended anneal at 100 degrees C. Interdiffusion occurred between Ni-Fe and the InP substrate after the sample was heated to 300 degrees C, and consequently a loss of ferromagnetic behavior was observed. (C) 1995 American Institute of Physics.

引用

页码：5795 / 5799

页数：5

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