Abstract
The temperature dependence of the high frequency Raman mode in HgBa2CuO4+δ belonging to the vibrations of the apical oxygen has been studied in the temperature range of 300-10 K in samples with different values of δ. The frequency, linewidth, and lineshape of this mode are found to exhibit a non-monotonic variation with temperature. The trends in the temperature dependent variation are found to be qualitatively the same in over-, under-, and optimally oxygen doped samples, although there are quantitative sample dependent differences. We show that the maximum change in the frequency and the asymmetry of this peak are linear in the excess oxygen content, δ.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 685-690 |
| Number of pages | 6 |
| Journal | Solid State Communications |
| Volume | 117 |
| Issue number | 11 |
| DOIs | |
| State | Published - Mar 6 2001 |
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ASJC Scopus subject areas
- Chemistry(all)
- Condensed Matter Physics
- Materials Chemistry
Cite this
Temperature dependence of the Raman scattering in HgBa2CuO4+δ. / Cai, Q.; Chandrasekhar, M.; Chandrasekhar, H. R.; Venkateswaran, U.; Liou, Sy-Hwang; Li, R.
In: Solid State Communications, Vol. 117, No. 11, 06.03.2001, p. 685-690.Research output: Contribution to journal › Article
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TY - JOUR
T1 - Temperature dependence of the Raman scattering in HgBa2CuO4+δ
AU - Cai, Q.
AU - Chandrasekhar, M.
AU - Chandrasekhar, H. R.
AU - Venkateswaran, U.
AU - Liou, Sy-Hwang
AU - Li, R.
PY - 2001/3/6
Y1 - 2001/3/6
N2 - The temperature dependence of the high frequency Raman mode in HgBa2CuO4+δ belonging to the vibrations of the apical oxygen has been studied in the temperature range of 300-10 K in samples with different values of δ. The frequency, linewidth, and lineshape of this mode are found to exhibit a non-monotonic variation with temperature. The trends in the temperature dependent variation are found to be qualitatively the same in over-, under-, and optimally oxygen doped samples, although there are quantitative sample dependent differences. We show that the maximum change in the frequency and the asymmetry of this peak are linear in the excess oxygen content, δ.
AB - The temperature dependence of the high frequency Raman mode in HgBa2CuO4+δ belonging to the vibrations of the apical oxygen has been studied in the temperature range of 300-10 K in samples with different values of δ. The frequency, linewidth, and lineshape of this mode are found to exhibit a non-monotonic variation with temperature. The trends in the temperature dependent variation are found to be qualitatively the same in over-, under-, and optimally oxygen doped samples, although there are quantitative sample dependent differences. We show that the maximum change in the frequency and the asymmetry of this peak are linear in the excess oxygen content, δ.
UR - http://www.scopus.com/inward/record.url?scp=0035277762&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0035277762&partnerID=8YFLogxK
U2 - 10.1016/S0038-1098(00)00515-9
DO - 10.1016/S0038-1098(00)00515-9
M3 - Article
AN - SCOPUS:0035277762
VL - 117
SP - 685
EP - 690
JO - Solid State Communications
JF - Solid State Communications
SN - 0038-1098
IS - 11
ER -