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Reentrant melting in solid films with quenched random impurities

Reentrant melting in solid films with quenched random impurities Crystalline films with a quenched distribution of impurities are studied. These materials are stable only over a finite band of temperatures. At sufficiently low temperatures, thermally excited dislocation pairs are broken apart by the random impurity potential. The hexatic phase which results can persist down to T = 0 . For large impurity concentrations, the solid phase is destroyed entirely. These conclusions are consistent with recent studies of vibrating binary ball-bearing arrays, and could be tested experimentally in a variety of other systems with quenched disorder. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Physical Review B American Physical Society (APS)

Reentrant melting in solid films with quenched random impurities

Nelson, David R
Physical Review B , Volume 27 (5) – Mar 1, 1983
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Publisher
American Physical Society (APS)
Copyright
Copyright © 1983 The American Physical Society
ISSN
1095-3795
DOI
10.1103/PhysRevB.27.2902
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Abstract

Crystalline films with a quenched distribution of impurities are studied. These materials are stable only over a finite band of temperatures. At sufficiently low temperatures, thermally excited dislocation pairs are broken apart by the random impurity potential. The hexatic phase which results can persist down to T = 0 . For large impurity concentrations, the solid phase is destroyed entirely. These conclusions are consistent with recent studies of vibrating binary ball-bearing arrays, and could be tested experimentally in a variety of other systems with quenched disorder.

Journal

Physical Review B – American Physical Society (APS)

Published: Mar 1, 1983

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