Theory of Central Peak in Quasi-One-Dimensional Ferroelectric systems —Application to CsD2PO4

Masatoshi Imada

研究成果: Article

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Linear response of weakly coupled ϕ4 chains is investigated. The transfer integral method can be applied when the effect of the interchain coupling is taken into account using the mean field approximation. The Fokker-Planck equation is solved with a simple decoupling approximation for the phase space distribution function. We find a central peak structure in the dynamical structure factor. The intensity of the central peak diverges at the ferroelectric transition. This corresponds to the “softening” of the response of the domain wall. These phenomena may be observed in quasi-one-dimensional system such as CsD2PO4.

元の言語English
ページ(範囲)1457-1464
ページ数8
ジャーナルJournal of the Physical Society of Japan
50
発行部数5
DOI
出版物ステータスPublished - 1981 1 1
外部発表Yes

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ASJC Scopus subject areas

  • Physics and Astronomy(all)

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