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 | |
| 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)
Fingerprint Dive into the research topics of 'Raman Scattering of CuGeO3'. Together they form a unique fingerprint.
Cite this
Udagawa, M., Aoki, H., Ogita, N., Fujita, O., Sohma, A., Ogihara, A., & Akimitsu, J. (1994). Raman Scattering of CuGeO3. journal of the physical society of japan, 63(11), 4060-4064. https://doi.org/10.1143/JPSJ.63.4060