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Nmr Studies of Bulk and Interface Structure in Co Based Multilayers

Published online by Cambridge University Press:  15 February 2011

P. Panissod ,
J.P. Jay ,
C. Meny ,
M. Wojcik  and
E. Jedryka
P. Panissod
Affiliation:
Institut de Physique et Chimie des Matériaux de Strasbourg, CNRS-ULP 23 rue du Loess, F-67037 Strasbourg, France
J.P. Jay
Affiliation:
Institut de Physique et Chimie des Matériaux de Strasbourg, CNRS-ULP 23 rue du Loess, F-67037 Strasbourg, France
C. Meny
Affiliation:
Institut de Physique et Chimie des Matériaux de Strasbourg, CNRS-ULP 23 rue du Loess, F-67037 Strasbourg, France
M. Wojcik
Affiliation:
Institute of Physics, Polish Academy of Sciences Al. Lotnikow 32-46, 02668 Warsaw, Poland
E. Jedryka
Affiliation:
Institute of Physics, Polish Academy of Sciences Al. Lotnikow 32-46, 02668 Warsaw, Poland
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Abstract

Owing to the sensitivity of the hyperfine field to the topological and chemical environment of the probe nuclei, NMR spectra can be considered as histograms of the short range order ruling the structure of the material under investigation. Complementary to diffraction techniques this gives a local insight on the structure in the direct space. We review recent structural investigations of cobalt layers imbedded in Co/X multilayers and particularly of buried interfaces. Special attention has been given to the way intermixing takes place at the interfaces as its influence on the multilayer properties may be of considerable importance. Co/Cu multilayers, a case of weakly miscible elements, have been specially investigated owing to their GMR properties. But also cases of solid solution forming elements (Co/Ru or Co/Cr) or compound forming elements (Co/Fe) have been thoroughly studied. The latter case, which shows a stabilization of a bcc Co phase, will be discussed against the bulk alloy phase diagram.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 384: Symposium L – Magnetic Ultrathin films, Multilayers and Surfaces , 1995 , 61
Copyright
Copyright © Materials Research Society 1995

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References

REFERENCES

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