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

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

Research output: Contribution to journalArticle

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Abstract

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.

Original languageEnglish
Pages (from-to)288-290
Number of pages3
JournalPhysica B: Condensed Matter
Volume213-214
Issue numberC
DOIs
Publication statusPublished - Aug 1 1995

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Neutron scattering
neutron scattering
Crystal structure
Inorganic compounds
Dimerization
Crystal lattices
Superconducting transition temperature
inorganic compounds
crystal structure
dimerization
transition temperature
anomalies
Temperature
interactions
energy

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering
  • Materials Science(all)

Cite this

The lattice evolution of the spin-Peierls material CuGeO3 studied by neutron scattering. / Fujita, M.; Arai, M.; Ubukata, K.; Ohta, H.; Mino, Michinobu; Motokawa, M.; Knight, K.; Ibberson, R.; Forsyth, J. B.; Bennington, S. M.; Akimitsu, O.; Fujita, J.

In: Physica B: Condensed Matter, Vol. 213-214, No. C, 01.08.1995, p. 288-290.

Research output: Contribution to journalArticle

Fujita, M, Arai, M, Ubukata, K, Ohta, H, Mino, M, Motokawa, M, Knight, K, Ibberson, R, Forsyth, JB, Bennington, SM, Akimitsu, O & Fujita, J 1995, 'The lattice evolution of the spin-Peierls material CuGeO3 studied by neutron scattering', Physica B: Condensed Matter, vol. 213-214, no. C, pp. 288-290. https://doi.org/10.1016/0921-4526(95)00132-S
Fujita, M. ; Arai, M. ; Ubukata, K. ; Ohta, H. ; Mino, Michinobu ; Motokawa, M. ; Knight, K. ; Ibberson, R. ; Forsyth, J. B. ; Bennington, S. M. ; Akimitsu, O. ; Fujita, J. / The lattice evolution of the spin-Peierls material CuGeO3 studied by neutron scattering. In: Physica B: Condensed Matter. 1995 ; Vol. 213-214, No. C. pp. 288-290.
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