Theory of phonon dynamics near a charge-density-wave instability

Ravindra N. Bhatt, W. L. McMillan

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A dynamical Landau theory is proposed to describe the coupled motion of phonons and charge-density waves (CDW) near the CDW instability in transition-metal dichalcogenides. The dynamic structure factor is shown to exhibit a Kohn anomaly and a diverging central mode.

Original languageEnglish (US)
Pages (from-to)2042-2044
Number of pages3
JournalPhysical Review B
Issue number6
StatePublished - 1975
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics


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