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Atomic Structure and Growth Mode of Fe/Ir Superlattices with Short Periodicity

Published online by Cambridge University Press:  25 February 2011

S. Andrieu ,
M.F. Ravet ,
M. Maurer ,
V. Dupuis  and
M. Piecuch
S. Andrieu
Affiliation:
Laboratoire Mixte CNRS-St GOBAIN CRPAM BP109, 54704 Pont-à-Mousson, FRANCE
M.F. Ravet
Affiliation:
Laboratoire Mixte CNRS-St GOBAIN CRPAM BP109, 54704 Pont-à-Mousson, FRANCE
M. Maurer
Affiliation:
Laboratoire Mixte CNRS-St GOBAIN CRPAM BP109, 54704 Pont-à-Mousson, FRANCE
V. Dupuis
Affiliation:
Laboratoire Mixte CNRS-St GOBAIN CRPAM BP109, 54704 Pont-à-Mousson, FRANCE
M. Piecuch
Affiliation:
Laboratoire Mixte CNRS-St GOBAIN CRPAM BP109, 54704 Pont-à-Mousson, FRANCE
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Abstract

FeIr superlattices with short periodicities are realised by Molecular Beam Epitaxy. Ir on (1120) sapphire and Fe on (111) Ir growths are studied in situ by electron diffraction. Like FeRu superlattices, a new Fe state is stabilized with in-plane interatomic distances expanded. FeIr superlattices are analysed by X-Ray θ-2θ diffraction. It is shown that this technique allows precise calibration of Fe and Ir thicknesses and a direct determination of distances between Fe (and Ir) planes in the axis of growth. Diffraction study of FeIr superlattices reduced in powder shows that the stacking sequence in the multilayer is ABC.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 221: Symposium C – Heteroepitaxy of Dissimilar Materials , 1991 , 207
Copyright
Copyright © Materials Research Society 1991

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References

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