Journal
PHYSICAL REVIEW LETTERS
Volume 108, Issue 8, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.108.080601
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Funding
- Fonds de la Recherche Scientifique (F.R.S.-FNRS, Belgium)
- Office of Basic Energy Science, Department of Energy, Division of Materials Science and Engineering [DE-FG02-04-ER46108]
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The degeneracy of two-phase disordered microstructures consistent with a specified correlation function is analyzed by mapping it to a ground-state degeneracy. We determine for the first time the associated density of states via a Monte Carlo algorithm. Our results are explained in terms of the roughness of an energy landscape, defined on a hypercubic configuration space. The use of a Hamming distance in this space enables us to define a roughness metric, which is calculated from the correlation function alone and related quantitatively to the structural degeneracy. This relation is validated for a wide variety of disordered structures.
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