Dislocations and the commensurate-incommensurate transition in two dimensions

S. N. Coppersmith, Daniel S. Fisher, B. I. Halperin, P. A. Lee, W. F. Brinkman

Research output: Contribution to journalArticlepeer-review

219 Scopus citations

Abstract

The stability of weakly incommensurate two-dimensional solid phases described by periodic arrays of discommensurations has been investigated. It is shown that incommensurate phases consisting of a small number of possible commensurate domains of either the striped or honeycomb type are unstable with respect to the spontaneous creation of dislocations. Such phases are consequently "liquids," with exponential decay of correlations. The consequences of these results on the phase diagram of overlayers and the relation with experiment is discussed.

Original languageEnglish (US)
Pages (from-to)349-363
Number of pages15
JournalPhysical Review B
Volume25
Issue number1
DOIs
StatePublished - Jan 1 1982
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics

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