The lattice evolution of the spin-Peierls material CuGeO3 studied by neutron scattering

M. Fujita, M. Arai, K. Ubukata, H. Ohta, M. Mino, M. Motokawa, K. Knight, R. Ibberson, J. B. Forsyth, S. M. Bennington, O. Akimitsu, J. Fujita

研究成果: Article査読

11 被引用数 (Scopus)

抄録

CuGeO3 is an inorganic compound which possesses a spin-Peierls transition. We have studied the crystal structure and the phonon dynamics of CuGeO3 by neutron scattering. We found that a lattice anomaly starts to evolve significantly above the transition temperature, Tsp, and there is a drastic change below Tsp. The phonon mode over a wide energy range changes drastically at high temperature. Therefore we conclude that the inherent structural instability in the crystal structure provides favorable conditions for the lattice-spin interaction and induces the spin-Peierls transition, i.e. lattice dimerization.

本文言語English
ページ(範囲)288-290
ページ数3
ジャーナルPhysica B: Physics of Condensed Matter
213-214
C
DOI
出版ステータスPublished - 1995 8 1
外部発表はい

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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