Phonon anomaly in the inorganic spin-Peierls compound CuGeO3

M. Nishi, Y. Fujii, H. Kadowaki, S. Katano, K. Kakurai, J. Akimitsu

Research output: Contribution to journalArticle

Abstract

The phonon profiles of CuGeO3 have been measured at Q = (0, 3, 0) and E∼1 meV at several temperatures by inelastic neutron scattering experiments. The temperature dependence of the central energy and the full-width at half-maximum changes little, but the integral intensity decreases exponentially below 150 K. This anomalous phenomenon is related to the spin-Peierls transition regarded not as displacive type but as order-disorder type of oxygen atoms. æ 2003 Elsevier Science B.V. All rights reserved.

Original languageEnglish
Pages (from-to)872-873
Number of pages2
JournalPhysica B: Condensed Matter
Volume329-333
Issue numberII
DOIs
Publication statusPublished - May 2003
Externally publishedYes

Keywords

  • Neutron scattering
  • Phonon
  • Spin-Peierls

ASJC Scopus subject areas

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

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