C.M. Brown, L. Cristofolini, et al.
Chemistry of Materials
The magnetic properties of rf sputtered Ni8Fe,9films were studied as a function of thickness from < 100 to —1200 A. In contrast to some recently reported studies, there was no evidence of an oscillatory dependence of resistivity on Ap as a function of thickness. The magnetoresistance, resistance, coercivity, and anisotropy field varied smoothly with thickness. In contrast, the magnetostriction Ashad a minimum of — 1.5x10“6at —300 A. The saturation magnetic moment did not decrease with thickness over the thickness range studied here. The derived magnetoresistance of an “infinitely” thick film was 3.92% compared to the bulk value of —4%. The analysis indicates that surface and grain-boundary scattering are the primary cause of lower than bulk values of magnetoresistance in these thin permalloy films. © 1991, American Vacuum Society. All rights reserved.
C.M. Brown, L. Cristofolini, et al.
Chemistry of Materials
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MRS Proceedings 1983
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MRS Spring 2000
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