Raman scattering of CuGeO3

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

Research output: Contribution to journal › Article

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(D52h). 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
Publication statusPublished - Nov 1994
Externally publishedYes

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Raman spectra
phonons
room temperature
spin temperature
transition temperature
temperature dependence
polarization
geometry
temperature
energy

Keywords

  • CuGeO
  • Magnetic excitation
  • Phonon
  • Polarization dependence
  • Raman scattering
  • Spin-Peierls transition

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Udagawa, M., Aoki, H., Ogita, N., Fujita, O., Sohma, A., Ogirara, A., & Akimitsu, J. (1994). Raman scattering of CuGeO3. Journal of the Physical Society of Japan, 63(11), 4060-4064.

Raman scattering of CuGeO3. / Udagawa, Masayuki; Aoki, Hiroaki; Ogita, Norio; Fujita, Osamu; Sohma, Akio; Ogirara, Atsuyuki; Akimitsu, Jun.

In: Journal of the Physical Society of Japan, Vol. 63, No. 11, 11.1994, p. 4060-4064.

Research output: Contribution to journal › Article

Udagawa, M, Aoki, H, Ogita, N, Fujita, O, Sohma, A, Ogirara, A & Akimitsu, J 1994, 'Raman scattering of CuGeO3', Journal of the Physical Society of Japan, vol. 63, no. 11, pp. 4060-4064.
Udagawa M, Aoki H, Ogita N, Fujita O, Sohma A, Ogirara A et al. Raman scattering of CuGeO3. Journal of the Physical Society of Japan. 1994 Nov;63(11):4060-4064.
Udagawa, Masayuki ; Aoki, Hiroaki ; Ogita, Norio ; Fujita, Osamu ; Sohma, Akio ; Ogirara, Atsuyuki ; Akimitsu, Jun. / Raman scattering of CuGeO3. In: Journal of the Physical Society of Japan. 1994 ; Vol. 63, No. 11. pp. 4060-4064.
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AU - Akimitsu, Jun

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N2 - 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(D52h). 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).

AB - 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(D52h). 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).

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