Phonon Characterization of Raman Spectra in High Tc
Superconductors Y1-x Gdx Ba2 Cu3 O7-δ
ZHANG Mingsheng (ZHANG Ming-sheng), CHEN Qiang, JIN Xin* , YIN Zhen* , YAO Xixian*
Center for Materials Analysis, National Laboratory of Solid State Microstructures, and
* Department of Physics, Nanjing University, Nanjing 210008
Phonon Characterization of Raman Spectra in High Tc
Superconductors Y1-x Gdx Ba2 Cu3 O7-δ
ZHANG Mingsheng (ZHANG Ming-sheng);CHEN Qiang;JIN Xin* ;YIN Zhen* ;YAO Xixian*
Center for Materials Analysis, National Laboratory of Solid State Microstructures, and
* Department of Physics, Nanjing University, Nanjing 210008
关键词 ：
63.20.Dj ,
78.30.Er ,
74.30.-e
Abstract ： Concentration-dependent Raman spectra of Y1-x Gdx Ba2 Cu3 O7-δ (x=0.4, 0.6, 0.8 and 1.0) show that the Raman mode from O(4) bridging shifts upward due to the increased symmetry of crystal potential. The linewidth and intensity of 508cm-1 mode are decreased and increased with increasing x, respectively which is attributed to the charge transfer from the CuO basal planes to the CuO2 planes. Two second-order Raman modes at 798 and 896cm-1 have been observed and confirmed.
Key words ：
63.20.Dj
78.30.Er
74.30.-e
出版日期: 1994-01-01
引用本文:
ZHANG Mingsheng (ZHANG Ming-sheng);CHEN Qiang;JIN Xin*;YIN Zhen*;YAO Xixian*. Phonon Characterization of Raman Spectra in High Tc
Superconductors Y1-x Gdx Ba2 Cu3 O7-δ
[J]. 中国物理快报, 1994, 11(1): 31-34.
c
Superconductors Y1-x Gdx Ba2 Cu3 O7-δ
. Chin. Phys. Lett., 1994, 11(1): 31-34.
链接本文:
https://cpl.iphy.ac.cn/CN/
或
https://cpl.iphy.ac.cn/CN/Y1994/V11/I1/31
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