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Phenomenological Explanation of Elastic Anomalies in Superlattices

Published online by Cambridge University Press:  15 February 2011

M. Grimsditch ,
Eric E. Fullerton  and
Ivan K. Schuller
M. Grimsditch
Affiliation:
Materials Science Division, Argonne National Laboratory, Argonne, IL 60439
Eric E. Fullerton
Affiliation:
Materials Science Division, Argonne National Laboratory, Argonne, IL 60439
Ivan K. Schuller
Affiliation:
Physics Department, University of California-SD, La Jolla, CA 92093-0319
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Abstract

The experimental fact that measured elastic and structural properties of superlattices are strongly correlated can be understood on the basis of a simple model based on the packing of hard spheres. The model is consistent with features of many models that have been proposed to explain the supermodulus effect, but contrary to previous explanations, it allows predictions for a given pair of constituents to be made. For an arbitrary pair of elements, it predicts the existence or non-existence of an elastic anomaly, and a rough estimate of its magnitude.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 308: Symposium M1 – Thin Films: Stresses and Mechanical Properties IV , 1993 , 685
Copyright
Copyright © Materials Research Society 1993

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References

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