Scaling theory of the Peierls charge density wave in metal nanowires

D. F. Urban, C. A. Stafford, Hermann Grabert

Research output: Contribution to journalArticle

6 Scopus citations

Abstract

The Peierls instability in multichannel metal nanowires is investigated. Hyperscaling relations are established for the finite-size, temperature, and wave-vector scaling of the electronic free energy. It is shown that the softening of surface modes at wave vector q=2 kF,ν leads to critical fluctuations of the wire's radius at zero temperature, where kF,ν is the Fermi wave vector of the highest occupied channel. This Peierls charge density wave emerges as the system size becomes comparable to the channel correlation length. Although the Peierls instability is weak in metal nanowires, in the sense that the correlation length is exponentially long, we predict that nanowires fabricated by current techniques can be driven into the charge-density-wave regime under strain.

Original languageEnglish (US)
Article number205428
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume75
Issue number20
DOIs
StatePublished - May 17 2007

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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