Abstract

As-deposited and annealed specimens of ion beam sputtered amorphous Co₇₄Fe₆B₁₅Si₅ thin films were examined to explore the correlation between changes in magnetic properties and atomic structure. Specimens were characterized magnetically, by traditional ac and dc techniques and structurally, via conversion-electron extended x-ray absorption fine structure analysis. Results show significant ordering of the higher order atomic shells around the transition metal ions well below the crystallization temperature. This ordering evolves into a body- centered-cubic configuration around both the Co and Fe ions. Increases in nearest neighbor peak positions in the EXAFS Fourier transforms were observed to correlate with increasing annealing temperatures. Evidence is presented for the role of the ordering in the observed magnetic changes, but the details remain unclear.

Notes

Originally published in IEEE Transactions on Magnetics, 1990, pp.1459-1461 September 1990. doi: 10.1109/20.104410

Keywords

amorphous materials

Disciplines

Industrial Engineering | Mechanical Engineering

Publisher

IEEE

Publication Date

9-1990

Rights Information

© 1990 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other users, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works for resale or redistribution to servers or lists, or reuse of any copyrighted components of this work in other works.

Rights Holder

IEEE

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