Peculiar hole doping by Ca substitution in cuprate superconductors

J. Y. Lin; P. C. Chung; S. J. Liu; C. C. Hsiang; P. H. Lin; J. M. Lee; J. M. Chen; K. H. Wu; Y. S. Gou

doi:10.1023/A:1022953909161

Peculiar hole doping by Ca substitution in cuprate superconductors

J. Y. Lin^*, P. C. Chung, S. J. Liu, C. C. Hsiang, P. H. Lin, J. M. Lee, J. M. Chen, K. H. Wu, Y. S. Gou

^*此作品的通信作者

研究成果: 雜誌貢獻 › 期刊論文 › 同行評審

摘要

The doping effect of Ca substitution in Y_0.7 Ca_0.3Ba₂ Cu₃O_y has been studied for y=6.9 and 6 by the x-ray absorption near edge spectroscopy (XANES). While Ca doping leads to an obvious increase in hole concentration in the CuO2 planes in Y_0.7 Ca_0.3 Ba₂ Cu₃ O_6.9, XANES indicates absence of this doping effect in Y_0.7 Ca_0.3 Ba₂ Cu₃ O₆. These two contradict results suggest that the doping effect by Ca substitution could be sensitive to the oxygen content when y ∼ 6.0. Comparisons with others' works are made.

原文	英語
頁（從 - 到）	337-341
頁數	5
期刊	Journal of Low Temperature Physics
卷	131
發行號	3-4
DOIs	https://doi.org/10.1023/A:1022953909161
出版狀態	已發佈 - 2003 5月
對外發佈	是

ASJC Scopus subject areas

原子與分子物理與光學
一般材料科學
凝聚態物理學

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abstract = "The doping effect of Ca substitution in Y0.7 Ca0.3Ba2 Cu3Oy has been studied for y=6.9 and 6 by the x-ray absorption near edge spectroscopy (XANES). While Ca doping leads to an obvious increase in hole concentration in the CuO2 planes in Y0.7 Ca0.3 Ba2 Cu3 O6.9, XANES indicates absence of this doping effect in Y0.7 Ca0.3 Ba2 Cu3 O6. These two contradict results suggest that the doping effect by Ca substitution could be sensitive to the oxygen content when y ∼ 6.0. Comparisons with others' works are made.",

author = "Lin, {J. Y.} and Chung, {P. C.} and Liu, {S. J.} and Hsiang, {C. C.} and Lin, {P. H.} and Lee, {J. M.} and Chen, {J. M.} and Wu, {K. H.} and Gou, {Y. S.}",

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AU - Lin, J. Y.

AU - Chung, P. C.

AU - Liu, S. J.

AU - Hsiang, C. C.

AU - Lin, P. H.

AU - Lee, J. M.

AU - Chen, J. M.

AU - Wu, K. H.

AU - Gou, Y. S.

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N2 - The doping effect of Ca substitution in Y0.7 Ca0.3Ba2 Cu3Oy has been studied for y=6.9 and 6 by the x-ray absorption near edge spectroscopy (XANES). While Ca doping leads to an obvious increase in hole concentration in the CuO2 planes in Y0.7 Ca0.3 Ba2 Cu3 O6.9, XANES indicates absence of this doping effect in Y0.7 Ca0.3 Ba2 Cu3 O6. These two contradict results suggest that the doping effect by Ca substitution could be sensitive to the oxygen content when y ∼ 6.0. Comparisons with others' works are made.

AB - The doping effect of Ca substitution in Y0.7 Ca0.3Ba2 Cu3Oy has been studied for y=6.9 and 6 by the x-ray absorption near edge spectroscopy (XANES). While Ca doping leads to an obvious increase in hole concentration in the CuO2 planes in Y0.7 Ca0.3 Ba2 Cu3 O6.9, XANES indicates absence of this doping effect in Y0.7 Ca0.3 Ba2 Cu3 O6. These two contradict results suggest that the doping effect by Ca substitution could be sensitive to the oxygen content when y ∼ 6.0. Comparisons with others' works are made.

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Peculiar hole doping by Ca substitution in cuprate superconductors

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