Phonon Characterization of Raman Spectra in High Tc
Superconductors Y1-xGdxBa2Cu3O7-δ

Chin. Phys. Lett.

1994, Vol. 11

Issue (1): 31-34 DOI:

Original Articles

Phonon Characterization of Raman Spectra in High T_c Superconductors Y_1-xGd_xBa₂Cu₃O_7-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

Cite this article:

ZHANG Mingsheng (ZHANG Ming-sheng), CHEN Qiang, JIN Xin et al 1994 Chin. Phys. Lett. 11 31-34

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Abstract Concentration-dependent Raman spectra of Y_1-xGd_xBa₂Cu₃O_7-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.

Keywords: 63.20.Dj 78.30.Er 74.30.-e

Published: 01 January 1994

PACS:	63.20.Dj
	78.30.Er	(Solid metals and alloys ?)
	74.30.-e

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https://cpl.iphy.ac.cn/ OR https://cpl.iphy.ac.cn/Y1994/V11/I1/031

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	ZHANG Mingsheng (ZHANG Ming-sheng)
	CHEN Qiang
	JIN Xin
	YIN Zhen
	YAO Xixian

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