Peculiar hole doping by Ca substitution in cuprate superconductors

Jiunn-Yuan Lin; P. C. Chung; S. J. Liu; C. C. Hsiang; P. H. Lin; J. M. Lee; J. M. Chen; Kaung-Hsiung Wu; Y. S. Gou

doi:10.1023/A:1022953909161

Peculiar hole doping by Ca substitution in cuprate superconductors

Jiunn-Yuan Lin^*, P. C. Chung, S. J. Liu, C. C. Hsiang, P. H. Lin, J. M. Lee, J. M. Chen, Kaung-Hsiung Wu, Y. S. Gou

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研究成果: Article › 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	English
頁（從 - 到）	337-343
頁數	7
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	Published - 1 5月 2003

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title = "Peculiar hole doping by Ca substitution in cuprate superconductors",

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 = "Jiunn-Yuan Lin 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 Kaung-Hsiung Wu and Gou, {Y. S.}",

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doi = "10.1023/A:1022953909161",

language = "English",

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journal = "Journal of Low Temperature Physics",

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T1 - Peculiar hole doping by Ca substitution in cuprate superconductors

AU - Lin, Jiunn-Yuan

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, Kaung-Hsiung

AU - Gou, Y. S.

PY - 2003/5/1

Y1 - 2003/5/1

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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DO - 10.1023/A:1022953909161

M3 - Article

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VL - 131

SP - 337

EP - 343

JO - Journal of Low Temperature Physics

JF - Journal of Low Temperature Physics

SN - 0022-2291

IS - 3-4

ER -

Peculiar hole doping by Ca substitution in cuprate superconductors

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