Superconducting and magnetic properties of Bi2Sr2Ca1-xYxCu2Oy (0≦x≦1)

R. Yoshizaki; Y. Saito; Y. Abe; H. Ikeda

doi:10.1016/0921-4534(88)90045-7

Superconducting and magnetic properties of Bi₂Sr₂Ca_1-xY_xCu₂O_y (0≦x≦1)

R. Yoshizaki, Y. Saito, Y. Abe, H. Ikeda

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

65 Citations (Scopus)

Abstract

The effect of substitution of Y atoms for Ca atoms has been studied in the Bi₂Sr₂Ca_1-xY_xCu₂O_y compound system. For x<0.5, superconductivity is observed and its fractional volume is reduced with increasing x, though the transition temperature of about 85 K is maintained. For x≧0.5 samples, the electrical resistivity behavior can be well described by the three-dimensional variable range hopping conduction, indicating that the system is essentially insulating. In this range of x, magnetic susceptibility shows spin-glass-type cusp at 13 K in the heating process after zero-field cooling and an enhanced cusp at 11 K in the field-cooling process. In the temperature range above about 150 K the Curie-Weiss dependence holds well with a positive paramagnetic Curie temperature, which increases to 40 K with increasing x in the insulating region.

Original language	English
Pages (from-to)	408-412
Number of pages	5
Journal	Physica C: Superconductivity and its applications
Volume	152
Issue number	5
DOIs	https://doi.org/10.1016/0921-4534(88)90045-7
Publication status	Published - 1988 Jul 1
Externally published	Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Energy Engineering and Power Technology
Electrical and Electronic Engineering

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abstract = "The effect of substitution of Y atoms for Ca atoms has been studied in the Bi2Sr2Ca1-xYxCu2Oy compound system. For x<0.5, superconductivity is observed and its fractional volume is reduced with increasing x, though the transition temperature of about 85 K is maintained. For x≧0.5 samples, the electrical resistivity behavior can be well described by the three-dimensional variable range hopping conduction, indicating that the system is essentially insulating. In this range of x, magnetic susceptibility shows spin-glass-type cusp at 13 K in the heating process after zero-field cooling and an enhanced cusp at 11 K in the field-cooling process. In the temperature range above about 150 K the Curie-Weiss dependence holds well with a positive paramagnetic Curie temperature, which increases to 40 K with increasing x in the insulating region.",

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AU - Ikeda, H.

PY - 1988/7/1

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N2 - The effect of substitution of Y atoms for Ca atoms has been studied in the Bi2Sr2Ca1-xYxCu2Oy compound system. For x<0.5, superconductivity is observed and its fractional volume is reduced with increasing x, though the transition temperature of about 85 K is maintained. For x≧0.5 samples, the electrical resistivity behavior can be well described by the three-dimensional variable range hopping conduction, indicating that the system is essentially insulating. In this range of x, magnetic susceptibility shows spin-glass-type cusp at 13 K in the heating process after zero-field cooling and an enhanced cusp at 11 K in the field-cooling process. In the temperature range above about 150 K the Curie-Weiss dependence holds well with a positive paramagnetic Curie temperature, which increases to 40 K with increasing x in the insulating region.

AB - The effect of substitution of Y atoms for Ca atoms has been studied in the Bi2Sr2Ca1-xYxCu2Oy compound system. For x<0.5, superconductivity is observed and its fractional volume is reduced with increasing x, though the transition temperature of about 85 K is maintained. For x≧0.5 samples, the electrical resistivity behavior can be well described by the three-dimensional variable range hopping conduction, indicating that the system is essentially insulating. In this range of x, magnetic susceptibility shows spin-glass-type cusp at 13 K in the heating process after zero-field cooling and an enhanced cusp at 11 K in the field-cooling process. In the temperature range above about 150 K the Curie-Weiss dependence holds well with a positive paramagnetic Curie temperature, which increases to 40 K with increasing x in the insulating region.

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Superconducting and magnetic properties of Bi₂Sr₂Ca_1-xY_xCu₂O_y (0≦x≦1)

Abstract

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