Glassy Roughness of a Crystalline Surface Upon a Disordered Substrate

Preprint

12 November 1994

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.cond-mat/9411048

Abstract

The discrete Gaussian model for the surface of a crystal deposited on a disordered substrate is studied by Monte Carlo simulations. A continuous transition is found from a phase with a thermally-induced roughness to a glassy one in which the roughness is driven by the disorder. The behavior of the height-height correlations is consistent with the one-step replica symmetry broken solution of the variational approximation. The results differ from the renormalization group predictions and from recent simulations of a 2D vortex-glass model which belongs to the same universality class.

Keywords

MONTE CARLO SIMULATIONS
DISORDERED SUBSTRATE
CRYSTALLINE SURFACE
DISCRETE GAUSSIAN
GLASSY ROUGHNESS
GAUSSIAN MODEL
ROUGHNESS
HEIGHT

All Related Versions

Version 1, 1994-11-12, ArXiv
Published version: Physical Review Letters, 74 (1), 114.

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