Filamentary superconductivity in the new 2212-type compound (Pb0.5Cu0.5)2(Ba0.5Sr 0.5)2YCu2O8

C. L. Yang; Y. Y. Hsu; J. H. Shieh; Y. M. Wan; H. C. Ku

Filamentary superconductivity in the new 2212-type compound (Pb_0.5Cu_0.5)₂(Ba_0.5Sr _0.5)₂YCu₂O₈

C. L. Yang^*, Y. Y. Hsu, J. H. Shieh, Y. M. Wan, H. C. Ku

^*Corresponding author for this work

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

Abstract

Filamentary superconductivity have been observed below T_c of 14 K for sintered-polycrystalline (Pb_0.5Cu_0.5)₂(Ba_0.5Sr _0.5)₂ YCu₂O₈ samples. Low electrical resistivity shows that this semiconducting sample is near the boundary of metal-insulator transition. The observed filamentary superconductivity indicates that the oxygen concentration of the sample (Pb_0.5Cu_0.5)₂(Ba_0.5Sr _0.5)₂ YCu₂O_8-δ is inhomogeneous. The oxygen off-stoichiometric parameter 6 plays the role of controlling the variation of free charge carriers in this electronically inhomogeneous sample where part of the sample is across the transition boundary and thus becomes superconducting.

Original language	English
Pages (from-to)	579-582
Number of pages	4
Journal	Chinese Journal of Physics
Volume	34
Issue number	2 II
Publication status	Published - 1996
Externally published	Yes

ASJC Scopus subject areas

General Physics and Astronomy

Cite this

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title = "Filamentary superconductivity in the new 2212-type compound (Pb0.5Cu0.5)2(Ba0.5Sr 0.5)2YCu2O8",

abstract = "Filamentary superconductivity have been observed below Tc of 14 K for sintered-polycrystalline (Pb0.5Cu0.5)2(Ba0.5Sr 0.5)2 YCu2O8 samples. Low electrical resistivity shows that this semiconducting sample is near the boundary of metal-insulator transition. The observed filamentary superconductivity indicates that the oxygen concentration of the sample (Pb0.5Cu0.5)2(Ba0.5Sr 0.5)2 YCu2O8-δ is inhomogeneous. The oxygen off-stoichiometric parameter 6 plays the role of controlling the variation of free charge carriers in this electronically inhomogeneous sample where part of the sample is across the transition boundary and thus becomes superconducting.",

author = "Yang, {C. L.} and Hsu, {Y. Y.} and Shieh, {J. H.} and Wan, {Y. M.} and Ku, {H. C.}",

year = "1996",

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T1 - Filamentary superconductivity in the new 2212-type compound (Pb0.5Cu0.5)2(Ba0.5Sr 0.5)2YCu2O8

AU - Yang, C. L.

AU - Hsu, Y. Y.

AU - Shieh, J. H.

AU - Wan, Y. M.

AU - Ku, H. C.

PY - 1996

Y1 - 1996

N2 - Filamentary superconductivity have been observed below Tc of 14 K for sintered-polycrystalline (Pb0.5Cu0.5)2(Ba0.5Sr 0.5)2 YCu2O8 samples. Low electrical resistivity shows that this semiconducting sample is near the boundary of metal-insulator transition. The observed filamentary superconductivity indicates that the oxygen concentration of the sample (Pb0.5Cu0.5)2(Ba0.5Sr 0.5)2 YCu2O8-δ is inhomogeneous. The oxygen off-stoichiometric parameter 6 plays the role of controlling the variation of free charge carriers in this electronically inhomogeneous sample where part of the sample is across the transition boundary and thus becomes superconducting.

AB - Filamentary superconductivity have been observed below Tc of 14 K for sintered-polycrystalline (Pb0.5Cu0.5)2(Ba0.5Sr 0.5)2 YCu2O8 samples. Low electrical resistivity shows that this semiconducting sample is near the boundary of metal-insulator transition. The observed filamentary superconductivity indicates that the oxygen concentration of the sample (Pb0.5Cu0.5)2(Ba0.5Sr 0.5)2 YCu2O8-δ is inhomogeneous. The oxygen off-stoichiometric parameter 6 plays the role of controlling the variation of free charge carriers in this electronically inhomogeneous sample where part of the sample is across the transition boundary and thus becomes superconducting.

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Filamentary superconductivity in the new 2212-type compound (Pb_0.5Cu_0.5)₂(Ba_0.5Sr _0.5)₂YCu₂O₈

Abstract

ASJC Scopus subject areas

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