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Critical Phenomena in Nanoscale Multilayer Materials

Published online by Cambridge University Press:  21 February 2011

T. Tsakalakos  and
A. Jankowski
T. Tsakalakos
Affiliation:
Dept. of Mechanics and Material Science, Rutgers University, P.O. Box 909, Piscataway, N.J. 08854
A. Jankowski
Affiliation:
Dept. of Chemistry and Materials Science, Lawrence Livermore National Laboratory, P.O. Box 808, L-350, Livermore, CA 94550
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Abstract

We present a review of critical phenomena in a variety of nanoscale multilayer materials. Discontinuities of interdiffusitives at low temperatures, “the Supermodulus effect” and the “softening” of elastic constants of fcc-bcc structures, other mechanical properties at critical layer thickness are also presented. Some new calculations of elastic constants of (111) fcc and (110) bcc metallic superlattices show large changes as a function of homogeneous lattice strains. The effect of structural relaxations on a number of electronic and magnetic properties is discussed and a new analytical model is developed to explain the origin of interference effects when interfaces are apart by a few interplanar spacings. This model can predict relaxations at interfaces for a variety of materials including metals, semiconductors and ceramics.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 132: Symposium G – Multicomponent Ultrafine Microstructures , 1988 , 199
Copyright
Copyright © Materials Research Society 1989

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