The oxygen 1s X-ray absorption near edge structure of Y(Ba1-xSrx)2Cu3O7-δ

Y. F. Song; S. B. Lee; C. N. Chang; H. F. Liu; C. H. Hsieh; H. E. Horag

doi:10.1016/0038-1098(96)00328-6

The oxygen 1s X-ray absorption near edge structure of Y(Ba_1-xSr_x)₂Cu₃O_7-δ

Y. F. Song, S. B. Lee, C. N. Chang^*, H. F. Liu, C. H. Hsieh, H. E. Horag

^*Corresponding author for this work

Department of Physics

Research output: Contribution to journal › Article › peer-review

11 Citations (Scopus)

Abstract

The pre-edge features of the oxygen O 1s X-ray absorption near edge structure spectra of Y(Ba_1-xSr_x)₂Cu₃O _7-δ, x = 0-0.5 were studied. No substantial change of the relative intensity of pre-edge peaks was observed. The spectral weights of the transitions of O 1s into the valence band and conduction band were found to be similar for x≦0.3, but changed substantially for x ≧0.4. The suppression of T_c due to the oxygen deficiency is ruled out. The reduction of hybridization of the balance band and the conduction band induced by the Sr substitution on the Ba sites can not fully account for the suppression of superconductivity.

Original language	English
Pages (from-to)	901-906
Number of pages	6
Journal	Solid State Communications
Volume	99
Issue number	12
DOIs	https://doi.org/10.1016/0038-1098(96)00328-6
Publication status	Published - 1996 Sept

Keywords

A. High-T superconductors
D. electronic states (localized)
E. synchrotron radiation

ASJC Scopus subject areas

General Chemistry
Condensed Matter Physics
Materials Chemistry

Access to Document

10.1016/0038-1098(96)00328-6

Cite this

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title = "The oxygen 1s X-ray absorption near edge structure of Y(Ba1-xSrx)2Cu3O7-δ",

abstract = "The pre-edge features of the oxygen O 1s X-ray absorption near edge structure spectra of Y(Ba1-xSrx)2Cu3O 7-δ, x = 0-0.5 were studied. No substantial change of the relative intensity of pre-edge peaks was observed. The spectral weights of the transitions of O 1s into the valence band and conduction band were found to be similar for x≦0.3, but changed substantially for x ≧0.4. The suppression of Tc due to the oxygen deficiency is ruled out. The reduction of hybridization of the balance band and the conduction band induced by the Sr substitution on the Ba sites can not fully account for the suppression of superconductivity.",

keywords = "A. High-T superconductors, D. electronic states (localized), E. synchrotron radiation",

author = "Song, {Y. F.} and Lee, {S. B.} and Chang, {C. N.} and Liu, {H. F.} and Hsieh, {C. H.} and Horag, {H. E.}",

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T1 - The oxygen 1s X-ray absorption near edge structure of Y(Ba1-xSrx)2Cu3O7-δ

AU - Song, Y. F.

AU - Lee, S. B.

AU - Chang, C. N.

AU - Liu, H. F.

AU - Hsieh, C. H.

AU - Horag, H. E.

PY - 1996/9

Y1 - 1996/9

N2 - The pre-edge features of the oxygen O 1s X-ray absorption near edge structure spectra of Y(Ba1-xSrx)2Cu3O 7-δ, x = 0-0.5 were studied. No substantial change of the relative intensity of pre-edge peaks was observed. The spectral weights of the transitions of O 1s into the valence band and conduction band were found to be similar for x≦0.3, but changed substantially for x ≧0.4. The suppression of Tc due to the oxygen deficiency is ruled out. The reduction of hybridization of the balance band and the conduction band induced by the Sr substitution on the Ba sites can not fully account for the suppression of superconductivity.

AB - The pre-edge features of the oxygen O 1s X-ray absorption near edge structure spectra of Y(Ba1-xSrx)2Cu3O 7-δ, x = 0-0.5 were studied. No substantial change of the relative intensity of pre-edge peaks was observed. The spectral weights of the transitions of O 1s into the valence band and conduction band were found to be similar for x≦0.3, but changed substantially for x ≧0.4. The suppression of Tc due to the oxygen deficiency is ruled out. The reduction of hybridization of the balance band and the conduction band induced by the Sr substitution on the Ba sites can not fully account for the suppression of superconductivity.

KW - A. High-T superconductors

KW - D. electronic states (localized)

KW - E. synchrotron radiation

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