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Giant Magnetoresistance and Oscillation in Epitaxial Fe/Cr(111) Multilayers

Published online by Cambridge University Press:  15 February 2011

Wen-C. Chiang ,
David V. Baxter  and
Yang-Tse Cheng
Wen-C. Chiang
Affiliation:
Dept. of Physics, Indiana University, Bloomington, IN 47405
David V. Baxter
Affiliation:
Dept. of Physics, Indiana University, Bloomington, IN 47405
Yang-Tse Cheng
Affiliation:
General Motors Research and Development Center, Warren, MI 48090
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Abstract

We report on the first studies of the giant magnetoresistance and oscillatory coupling in epitaxial Fe/Cr(111) multilayers. A series of samples were grown on hydrogen terminated Si(111) substrates at room temperature by UHV electron beam evaporation; with the thickness of Fe layer fixed at 30 Å, and the thickness of Cr layer varied from 10–47 Å. Giant magnetoresistance (GMR) is observed at 4.2 Å in these samples, with a maximum value of 13% for a Cr layer thickness of 13 Å. The associated oscillatory coupling is comparable to that reported in other crystallographic orientations in terms of both its period and phase.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 384: Symposium L – Magnetic Ultrathin films, Multilayers and Surfaces , 1995 , 353
Copyright
Copyright © Materials Research Society 1995

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