Micro-Raman scattering on superconducting HgBa2Can-1CunO2n+2+δ (n = 1, 2, 3) ceramics

Y. T. Ren; H. Chang; Q. Xiong; Y. Q. Wang; Y. Y. Sun; R. L. Meng; Y. Y. Xue; C. W. Chu

doi:10.1016/0921-4534(93)90329-O

Micro-Raman scattering on superconducting HgBa₂Ca_n-1Cu_nO_2n+2+δ (n = 1, 2, 3) ceramics

Y. T. Ren, H. Chang, Q. Xiong, Y. Q. Wang, Y. Y. Sun, R. L. Meng, Y. Y. Xue, C. W. Chu

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Abstract

We have measured the micro-Raman scattering on the mercury-based cuprate superconductors HgBa₂CuO_4+δ (Hg-1201), HgBa₂CaCu₂O_6+δ (Hg-1212) and HgBa₂Ca₂Cu₃O_8+δ (Hg-1223) in ceramic forms. The observed Raman spectra showed similar features for all the samples. A strong peak at ∼585 cm^-1 was tentatively attributed to the apical oxygen vibrating along the c-direction. A shoulder peak at ∼570 cm^-1 was speculated to be due to the vibration of the interstitial oxygen. Weak features around 180 cm^-1 were observed for all the samples. The Raman spectrum from CaHgO₂ was also reported. The power dependence of the Raman peaks was studied on Hg-1212. Raman scattering on a Hg-1212 thin film was also measured.

Original language	English
Pages (from-to)	273-279
Number of pages	7
Journal	Physica C: Superconductivity and its applications
Volume	217
Issue number	3-4
DOIs	https://doi.org/10.1016/0921-4534(93)90329-O
Publication status	Published - 1993 Nov 20

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Energy Engineering and Power Technology
Electrical and Electronic Engineering

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10.1016/0921-4534(93)90329-O

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title = "Micro-Raman scattering on superconducting HgBa2Can-1CunO2n+2+δ (n = 1, 2, 3) ceramics",

abstract = "We have measured the micro-Raman scattering on the mercury-based cuprate superconductors HgBa2CuO4+δ (Hg-1201), HgBa2CaCu2O6+δ (Hg-1212) and HgBa2Ca2Cu3O8+δ (Hg-1223) in ceramic forms. The observed Raman spectra showed similar features for all the samples. A strong peak at ∼585 cm-1 was tentatively attributed to the apical oxygen vibrating along the c-direction. A shoulder peak at ∼570 cm-1 was speculated to be due to the vibration of the interstitial oxygen. Weak features around 180 cm-1 were observed for all the samples. The Raman spectrum from CaHgO2 was also reported. The power dependence of the Raman peaks was studied on Hg-1212. Raman scattering on a Hg-1212 thin film was also measured.",

author = "Ren, {Y. T.} and H. Chang and Q. Xiong and Wang, {Y. Q.} and Sun, {Y. Y.} and Meng, {R. L.} and Xue, {Y. Y.} and Chu, {C. W.}",

note = "Funding Information: Technical assistance from C. Kinalidis, L. Beau-vais and X.N. Zhang and useful discussion with J. Clayhold and Z.J. Huang arc greatly appreciated. This work is supported in part by USAFOSR F49620- Funding Information: 93-1-0310, NSF Grant No. DMR 91-22043 and DARPA Grant No. MDA 972-88-G-002, the Texas Center for Superconductivity at the University of Houston and the T.L.L. Temple Foundation.",

year = "1993",

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doi = "10.1016/0921-4534(93)90329-O",

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pages = "273--279",

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TY - JOUR

T1 - Micro-Raman scattering on superconducting HgBa2Can-1CunO2n+2+δ (n = 1, 2, 3) ceramics

AU - Ren, Y. T.

AU - Chang, H.

AU - Xiong, Q.

AU - Wang, Y. Q.

AU - Sun, Y. Y.

AU - Meng, R. L.

AU - Xue, Y. Y.

AU - Chu, C. W.

N1 - Funding Information: Technical assistance from C. Kinalidis, L. Beau-vais and X.N. Zhang and useful discussion with J. Clayhold and Z.J. Huang arc greatly appreciated. This work is supported in part by USAFOSR F49620- Funding Information: 93-1-0310, NSF Grant No. DMR 91-22043 and DARPA Grant No. MDA 972-88-G-002, the Texas Center for Superconductivity at the University of Houston and the T.L.L. Temple Foundation.

PY - 1993/11/20

Y1 - 1993/11/20

N2 - We have measured the micro-Raman scattering on the mercury-based cuprate superconductors HgBa2CuO4+δ (Hg-1201), HgBa2CaCu2O6+δ (Hg-1212) and HgBa2Ca2Cu3O8+δ (Hg-1223) in ceramic forms. The observed Raman spectra showed similar features for all the samples. A strong peak at ∼585 cm-1 was tentatively attributed to the apical oxygen vibrating along the c-direction. A shoulder peak at ∼570 cm-1 was speculated to be due to the vibration of the interstitial oxygen. Weak features around 180 cm-1 were observed for all the samples. The Raman spectrum from CaHgO2 was also reported. The power dependence of the Raman peaks was studied on Hg-1212. Raman scattering on a Hg-1212 thin film was also measured.

AB - We have measured the micro-Raman scattering on the mercury-based cuprate superconductors HgBa2CuO4+δ (Hg-1201), HgBa2CaCu2O6+δ (Hg-1212) and HgBa2Ca2Cu3O8+δ (Hg-1223) in ceramic forms. The observed Raman spectra showed similar features for all the samples. A strong peak at ∼585 cm-1 was tentatively attributed to the apical oxygen vibrating along the c-direction. A shoulder peak at ∼570 cm-1 was speculated to be due to the vibration of the interstitial oxygen. Weak features around 180 cm-1 were observed for all the samples. The Raman spectrum from CaHgO2 was also reported. The power dependence of the Raman peaks was studied on Hg-1212. Raman scattering on a Hg-1212 thin film was also measured.

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Micro-Raman scattering on superconducting HgBa₂Ca_n-1Cu_nO_2n+2+δ (n = 1, 2, 3) ceramics

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