Inelastic neutron scattering study of the lattice dynamics in CuGeO3

M. Nishi, O. Fujita, J. Akimitsu

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Abstract

Inelastic neutron scattering study has been performed on various phonon branches of CuGeO3 single crystal. The coupling mode between LA and LO branches along the [001] direction was observed near 23 meV at (0,0,2.2) position. Anomalous broad scattering with a peak near 21 meV and FWHM about 20 meV was measured on the line between (0,0,2.3) and (0,0,2.5). TO phonon branch along the [001] direction becomes softer near zone center but the energy is independent of temperature.

Original languageEnglish
Pages (from-to)149-156
Number of pages8
JournalPhysica B: Physics of Condensed Matter
Volume210
Issue number2
DOIs
Publication statusPublished - Apr 2 1995
Externally publishedYes

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ASJC Scopus subject areas

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

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