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Thermally Driven Shape Instability of Multilayer Structures

Published online by Cambridge University Press:  21 February 2011

P. Troche ,
J. Hoffmann ,
C. Herweg ,
CH. Lang ,
H.C. Freyhardt  and
D. Rudolph
P. Troche
Affiliation:
Institut für Materialphysik, Universität Göttingen, Hospitalstr. 3-7, D-37073 Göttingen, troche(a)gwdg.de
J. Hoffmann
Affiliation:
Institut für Materialphysik, Universität Göttingen, Hospitalstr. 3-7x, D-37073 Göttingen
C. Herweg
Affiliation:
Institut für Materialphysik, Universität Göttingen, Hospitalstr. 3-7x, D-37073 Göttingen
CH. Lang
Affiliation:
Institut für Materialphysik, Universität Göttingen, Hospitalstr. 3-7x, D-37073 Göttingen
H.C. Freyhardt
Affiliation:
Institut für Materialphysik, Universität Göttingen, Hospitalstr. 3-7x, D-37073 Göttingen
D. Rudolph
Affiliation:
Institut für Rdntgenphysik, Universität Göttingen, Geiststralße 3, D-37073 Göttingen
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Abstract

The thermally induced shape instability of Fe/Au, Fe/Ag, and Nb/Cu multilayer systems during heat treatments was investigated. The disintegration temperature of these systems decreases with decreasing single-layer thickness. Up to a critical thickness, the disintegration temperature is proportional to the reciprocal layer thickness. The driving force of this process is related to the interfacial stress and the local variation of the interface curvature. After heat treatment, spherically shaped Fe and Nb nanoparticles, located in chains perpendicular to the substrate, were observed and depicted by means of transmission electron microscopy (TEM) and X-ray microscopy (XRM).

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 581: Symposium F – Nanophase & Nanocomposite Materials II , 1999 , 635
Copyright
Copyright © Materials Research Society 2000

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References

REFERENCES

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