Correlation between Tc and hole concentration in the cation-substituted Bi2Sr2CaCu2O8+δ system

Yoji Koike; Yoshihiro Iwabuchi; Syoichi Hosoya; Norio Kobayashi; Tetsuo Fukase

doi:10.1016/0921-4534(89)90110-X

Correlation between T_c and hole concentration in the cation-substituted Bi₂Sr₂CaCu₂O_8+δ system

Yoji Koike, Yoshihiro Iwabuchi, Syoichi Hosoya, Norio Kobayashi, Tetsuo Fukase

ENG - Applied Physics

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

107 Citations (Scopus)

Abstract

Correlation between superconducting T_c and hole concentration was investigated in the Bi₂Sr₂CaCu₂O_8+δ system. The hole concentration was varied by substituting cations with different valences for Sr or Ca. In order to increase the hole concentration, some samples were annealed at 430°C in 250 bar of oxygen pressure. We find that T_c increases, takes a maximum at the hole concentration corresponding to 0.2-0.3 holes per CuO₂ unit, and then decreases, with increasing hole concentration. This correlation is markedly similar to those in the La_2-xSr_xCuO₄ and YBa₂Cu₃O_7-δ systems.

Original language	English
Pages (from-to)	105-110
Number of pages	6
Journal	Physica C: Superconductivity and its applications
Volume	159
Issue number	1-2
DOIs	https://doi.org/10.1016/0921-4534(89)90110-X
Publication status	Published - 1989 Jun 1

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 = "Correlation between superconducting Tc and hole concentration was investigated in the Bi2Sr2CaCu2O8+δ system. The hole concentration was varied by substituting cations with different valences for Sr or Ca. In order to increase the hole concentration, some samples were annealed at 430°C in 250 bar of oxygen pressure. We find that Tc increases, takes a maximum at the hole concentration corresponding to 0.2-0.3 holes per CuO2 unit, and then decreases, with increasing hole concentration. This correlation is markedly similar to those in the La2-xSrxCuO4 and YBa2Cu3O7-δ systems.",

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T1 - Correlation between Tc and hole concentration in the cation-substituted Bi2Sr2CaCu2O8+δ system

AU - Koike, Yoji

AU - Iwabuchi, Yoshihiro

AU - Hosoya, Syoichi

AU - Kobayashi, Norio

AU - Fukase, Tetsuo

PY - 1989/6/1

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N2 - Correlation between superconducting Tc and hole concentration was investigated in the Bi2Sr2CaCu2O8+δ system. The hole concentration was varied by substituting cations with different valences for Sr or Ca. In order to increase the hole concentration, some samples were annealed at 430°C in 250 bar of oxygen pressure. We find that Tc increases, takes a maximum at the hole concentration corresponding to 0.2-0.3 holes per CuO2 unit, and then decreases, with increasing hole concentration. This correlation is markedly similar to those in the La2-xSrxCuO4 and YBa2Cu3O7-δ systems.

AB - Correlation between superconducting Tc and hole concentration was investigated in the Bi2Sr2CaCu2O8+δ system. The hole concentration was varied by substituting cations with different valences for Sr or Ca. In order to increase the hole concentration, some samples were annealed at 430°C in 250 bar of oxygen pressure. We find that Tc increases, takes a maximum at the hole concentration corresponding to 0.2-0.3 holes per CuO2 unit, and then decreases, with increasing hole concentration. This correlation is markedly similar to those in the La2-xSrxCuO4 and YBa2Cu3O7-δ systems.

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Correlation between T_c and hole concentration in the cation-substituted Bi₂Sr₂CaCu₂O_8+δ system

Abstract

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