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

^*Corresponding author for this work

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

Abstract

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.

Original language	English
Pages (from-to)	337-341
Number of pages	5
Journal	Journal of Low Temperature Physics
Volume	131
Issue number	3-4
DOIs	https://doi.org/10.1023/A:1022953909161
Publication status	Published - 2003 May
Externally published	Yes

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics
General Materials Science
Condensed Matter Physics

Access to Document

10.1023/A:1022953909161

Cite this

@article{fa2567251f16473fa65ff289463dc826,

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 = "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.}",

year = "2003",

month = may,

doi = "10.1023/A:1022953909161",

language = "English",

volume = "131",

pages = "337--341",

journal = "Journal of Low Temperature Physics",

issn = "0022-2291",

publisher = "Springer New York",

number = "3-4",

}

TY - JOUR

T1 - Peculiar hole doping by Ca substitution in cuprate superconductors

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.

PY - 2003/5

Y1 - 2003/5

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.

UR - http://www.scopus.com/inward/record.url?scp=0038577621&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0038577621&partnerID=8YFLogxK

U2 - 10.1023/A:1022953909161

DO - 10.1023/A:1022953909161

M3 - Article

AN - SCOPUS:0038577621

SN - 0022-2291

VL - 131

SP - 337

EP - 341

JO - Journal of Low Temperature Physics

JF - Journal of Low Temperature Physics

IS - 3-4

ER -

Peculiar hole doping by Ca substitution in cuprate superconductors

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this