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Structure and Magnetic Properties of FE/ZR Multilayer Films

Published online by Cambridge University Press:  03 September 2012

Toyohiko J. Konno
Affiliation:
Department of Materials Science and Engineering, Stanford University Stanford, CA 94305, U.S.A.
Takenori Nakayama
Affiliation:
Materials Research Laboratory, Kobe Steel, Ltd., Kobe, 651, Japan
Bruce M. Clemens
Affiliation:
Department of Materials Science and Engineering, Stanford University Stanford, CA 94305, U.S.A.
Robert Sinclair
Affiliation:
Department of Materials Science and Engineering, Stanford University Stanford, CA 94305, U.S.A.
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Abstract

We investigated structural and magnetic properties of Fe/Zr Multilayer films using high-resolution transmission electron Microscopy, X-ray diffraction and vibrating sample Magnetometry. For films with wavelength (Λ) ≥ 80Å, the interface region between the Fe and Zr layers exhibits a 15–20Å thick amorphous structure. The Magnetization curves of these films showed a monotonous decrease in the saturation magnetizations with Λ, whose trend is well explained by a simple asymptotic model that assumes the interface amorphous layer to be non-ferromagnetic. Films with Λ≤40Å exhibit a compositionally-Modulated amorphous structure. The latter films are paramagnetic except for the one with Λ=40Å, which showed a superparamagnetic behavior.

Type
Research Article
Copyright
Copyright © Materials Research Society 1993

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References

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