Raman Scattering of CuGeO3

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

doi:10.1143/JPSJ.63.4060

Raman Scattering of CuGeO3

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

Research output: Contribution to journal › Article › peer-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 language	English
Pages (from-to)	4060-4064
Number of pages	5
Journal	journal of the physical society of japan
Volume	63
Issue number	11
DOIs	https://doi.org/10.1143/JPSJ.63.4060
Publication status	Published - Jan 1 1994
Externally published	Yes

Keywords

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

ASJC Scopus subject areas

Physics and Astronomy(all)

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title = "Raman Scattering of CuGeO3",

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).",

keywords = "CuGeO3, Raman scattering, magnetic excitation, phonon, polarization dependence, spin-Peierls transition",

author = "Masayuki Udagawa and Hiroaki Aoki and Norio Ogita and Osamu Fujita and Akio Sohma and Atsuyuki Ogihara and Jun Akimitsu",

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T1 - Raman Scattering of CuGeO3

AU - Udagawa, Masayuki

AU - Aoki, Hiroaki

AU - Ogita, Norio

AU - Fujita, Osamu

AU - Sohma, Akio

AU - Ogihara, Atsuyuki

AU - Akimitsu, Jun

PY - 1994/1/1

Y1 - 1994/1/1

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[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).

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[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).

KW - CuGeO3

KW - Raman scattering

KW - magnetic excitation

KW - phonon

KW - polarization dependence

KW - spin-Peierls transition

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