Abstract
Pressure dependence (up to ~ 80 Kbar) of optical modes in low frequency region of NdNbO4 was investigated by Raman scattering measurements at room temperature. The Raman spectra of NdNbO4 are found to be quite similar to those of isostructural LaNbO4. With increasing pressure, the overlapped peaks of the lowest frequency in NdNbO4 at atmospheric pressure, which are in the different symmetries each other, split around 30 Kbar. This behavior can be explained by the coupling of the optical mode and the order parameter x6.
| Original language | English |
|---|---|
| Pages (from-to) | 2187-2191 |
| Number of pages | 5 |
| Journal | journal of the physical society of japan |
| Volume | 56 |
| Issue number | 6 |
| DOIs | |
| Publication status | Published - Jan 1 1987 |
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All Science Journal Classification (ASJC) codes
- Physics and Astronomy(all)
Cite this
Pressure Dependence of Raman Spectra in Low Frequency Region of Ferroelastic NdNbO4. / Hara, Kazuhiro; Sawada, Akikatsu; Ishibashi, Yoshihiro.
In: journal of the physical society of japan, Vol. 56, No. 6, 01.01.1987, p. 2187-2191.Research output: Contribution to journal › Article
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TY - JOUR
T1 - Pressure Dependence of Raman Spectra in Low Frequency Region of Ferroelastic NdNbO4
AU - Hara, Kazuhiro
AU - Sawada, Akikatsu
AU - Ishibashi, Yoshihiro
PY - 1987/1/1
Y1 - 1987/1/1
N2 - Pressure dependence (up to ~ 80 Kbar) of optical modes in low frequency region of NdNbO4 was investigated by Raman scattering measurements at room temperature. The Raman spectra of NdNbO4 are found to be quite similar to those of isostructural LaNbO4. With increasing pressure, the overlapped peaks of the lowest frequency in NdNbO4 at atmospheric pressure, which are in the different symmetries each other, split around 30 Kbar. This behavior can be explained by the coupling of the optical mode and the order parameter x6.
AB - Pressure dependence (up to ~ 80 Kbar) of optical modes in low frequency region of NdNbO4 was investigated by Raman scattering measurements at room temperature. The Raman spectra of NdNbO4 are found to be quite similar to those of isostructural LaNbO4. With increasing pressure, the overlapped peaks of the lowest frequency in NdNbO4 at atmospheric pressure, which are in the different symmetries each other, split around 30 Kbar. This behavior can be explained by the coupling of the optical mode and the order parameter x6.
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U2 - 10.1143/JPSJ.56.2187
DO - 10.1143/JPSJ.56.2187
M3 - Article
AN - SCOPUS:77951227131
VL - 56
SP - 2187
EP - 2191
JO - Journal of the Physical Society of Japan
JF - Journal of the Physical Society of Japan
SN - 0031-9015
IS - 6
ER -