Raman Scattering of CuGeO3

Masayuki Udagawa, Hiroaki Aoki, Norio Ogita, Osamu Fujita, Akio Sohma, Atsuyuki Ogihara, Jun Akimitsu

Research output: Contribution to journalArticlepeer-review

25 Citations (Scopus)

Abstract

Polarization and temperature dependence of Raman scattering spectra of CuGeO3 has been measured from room temperature to 5 K. The observed phonons at room temperature are well assigned by the group theoretical estimation for Pbmm[formula omitted]. The qualitative change for all possible Raman scattering spectra has not been found from room temperature to 14 K. The energy of the five inter-chain phonons increases with decreasing temperature. Below spin-Peierls transition temperature Tsp(= 14 K), five peaks at 27, 107, 230, 370, and 820 cm-1 have been observed for the (c, c) geometry while the peaks at 370 and 820 cm-1 appear for (b, c).

Original languageEnglish
Pages (from-to)4060-4064
Number of pages5
Journaljournal of the physical society of japan
Volume63
Issue number11
DOIs
Publication statusPublished - Jan 1 1994
Externally publishedYes

Keywords

  • CuGeO3
  • Raman scattering
  • magnetic excitation
  • phonon
  • polarization dependence
  • spin-Peierls transition

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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