Thermal rounding of the charge-density-wave depinning transition

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Abstract

The rounding of the charge-density-wave depinning transition by thermal noise is examined. Hops by localized modes over small barriers trigger avalanches, resulting in a creep velocity much larger than that expected from comparing thermal energies with typical barriers. For a field equal to the T=0 depinning field, the creep velocity is predicted to have a power-law dependence on the temperature T; numerical computations confirm this result. The predicted order of magnitude of the thermal rounding of the depinning transition is consistent with rounding seen in experiment.

Original languageEnglish (US)
Pages (from-to)9465-9468
Number of pages4
JournalPhysical Review B
Volume45
Issue number16
DOIs
StatePublished - Jan 1 1992

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ASJC Scopus subject areas

  • Condensed Matter Physics

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