Superconducting properties of Pb2Sr2Y1−xCaxCu3O8+δ

Yoji Koike; Masahiro Masuzawa; Hiromu Sunagawa; Takashi Noji; Hisashi Kawabe; Norio Kobayashi; Yoshitami Saito

doi:10.1016/S0921-4526(09)80363-3

Superconducting properties of Pb₂Sr₂Y_1−xCa_xCu₃O_8+δ

Yoji Koike, Masahiro Masuzawa, Hiromu Sunagawa, Takashi Noji, Hisashi Kawabe, Norio Kobayashi, Yoshitami Saito

ENG - Applied Physics

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

1 Citation (Scopus)

Abstract

Superconducting properties of ceramic samples Pb₂Sr₂Y_1−xCa_xCu₃O_8+δ have been investigated in the wide composition-range of 0≦x≦0.8 and 0≦0<2. For samples of δ=0, T_c appears with compositions of x≧0.15 and takes a maximum at x=0.5. This is discussed in relation to x dependences of the electrical resistivity. the Hall coefficient, the upper critical field and the activation energy of the resistance tail in magnetic fields. As for samples of δ≠0, the superconductivity in each sample with different x is suppressed with increasing δ. which is in good correspondence to the increase in resistivity and Hall coefficient with increasing δ, but is contradictory to the speculation by Ohta and Maekawa.

Original language	English
Pages (from-to)	1555-1556
Number of pages	2
Journal	Physica B: Condensed Matter
Volume	165-166
DOIs	https://doi.org/10.1016/S0921-4526(09)80363-3
Publication status	Published - 1990 Jan 1

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Electrical and Electronic Engineering

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title = "Superconducting properties of Pb2Sr2Y1−xCaxCu3O8+δ",

abstract = "Superconducting properties of ceramic samples Pb2Sr2Y1−xCaxCu3O8+δ have been investigated in the wide composition-range of 0≦x≦0.8 and 0≦0<2. For samples of δ=0, Tc appears with compositions of x≧0.15 and takes a maximum at x=0.5. This is discussed in relation to x dependences of the electrical resistivity. the Hall coefficient, the upper critical field and the activation energy of the resistance tail in magnetic fields. As for samples of δ≠0, the superconductivity in each sample with different x is suppressed with increasing δ. which is in good correspondence to the increase in resistivity and Hall coefficient with increasing δ, but is contradictory to the speculation by Ohta and Maekawa.",

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T1 - Superconducting properties of Pb2Sr2Y1−xCaxCu3O8+δ

AU - Koike, Yoji

AU - Masuzawa, Masahiro

AU - Sunagawa, Hiromu

AU - Noji, Takashi

AU - Kawabe, Hisashi

AU - Kobayashi, Norio

AU - Saito, Yoshitami

PY - 1990/1/1

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N2 - Superconducting properties of ceramic samples Pb2Sr2Y1−xCaxCu3O8+δ have been investigated in the wide composition-range of 0≦x≦0.8 and 0≦0<2. For samples of δ=0, Tc appears with compositions of x≧0.15 and takes a maximum at x=0.5. This is discussed in relation to x dependences of the electrical resistivity. the Hall coefficient, the upper critical field and the activation energy of the resistance tail in magnetic fields. As for samples of δ≠0, the superconductivity in each sample with different x is suppressed with increasing δ. which is in good correspondence to the increase in resistivity and Hall coefficient with increasing δ, but is contradictory to the speculation by Ohta and Maekawa.

AB - Superconducting properties of ceramic samples Pb2Sr2Y1−xCaxCu3O8+δ have been investigated in the wide composition-range of 0≦x≦0.8 and 0≦0<2. For samples of δ=0, Tc appears with compositions of x≧0.15 and takes a maximum at x=0.5. This is discussed in relation to x dependences of the electrical resistivity. the Hall coefficient, the upper critical field and the activation energy of the resistance tail in magnetic fields. As for samples of δ≠0, the superconductivity in each sample with different x is suppressed with increasing δ. which is in good correspondence to the increase in resistivity and Hall coefficient with increasing δ, but is contradictory to the speculation by Ohta and Maekawa.

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