Quasiparticle spectrum and thermodynamics of φ solitons (discommensurations) in the charge-density-wave state

Kazuo Sasaki, Kazumi Maki

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

The quasiparticle spectrum associated with a soliton (discommensuration) in the quasi-one-dimensional charge-density-wave state is determined theoretically. Making use of the quasiparticle spectrum, we calculate the charge and the entropy associated with a soliton. We find that in the temperature region λ/NT/Δ1, the charge and the entropy of a soliton per chain are given by Q=(2e/N)[1-2βΔK1(βΔ)] and Sφ=(4λ/πN2)(βΔ)3K0 (βΔ), respectively, where Δ is the quasiparticle energy gap, β=1/T, N is the degree of commensurability, λ10-2 is a small parameter, and Kn(z) are modified Bessel functions.

Original languageEnglish
Pages (from-to)2665-2673
Number of pages9
JournalPhysical Review B
Volume33
Issue number4
DOIs
Publication statusPublished - 1986 Jan 1
Externally publishedYes

ASJC Scopus subject areas

  • Condensed Matter Physics

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