Superconductivity in multiple phase Sr2Ln1-xCaxGaCu2O7 and characterization of La2-xSrxCaCu2O6+δ

R. J. Cava; R. B. Van Dover; B. Batlogg; J. J. Krajewski; L. F. Schneemeyer; T. Siegrist; B. Hessen; S. H. Chen; W. F. Peck; L. W. Rupp

doi:10.1016/0921-4534(91)91969-B

Superconductivity in multiple phase Sr₂Ln_1-xCa_xGaCu₂O₇ and characterization of La_2-xSr_xCaCu₂O_6+δ

R. J. Cava, R. B. Van Dover, B. Batlogg, J. J. Krajewski, L. F. Schneemeyer, T. Siegrist, B. Hessen, S. H. Chen, W. F. Peck, L. W. Rupp

Chemistry and Biochemistry

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Abstract

We have observed the occurrance of superconductivity at temperatures between 40 and 50K for multiple phase samples of Sr₂Ln_1-xCa_xGaCu₂O₇ treated at 950-1000°C at 25 atmospheres oxygen pressure. We have not been able to find conditions at oxygen pressures of 25 atmospheres or below which make single phase samples superconducting. We also report the characterization of the properties of the simple double-layer 60K superconductor La_2-xSr_xCaCu₂O_6±δ. The optimal properties occur at x = 0.35 and δ = 0.0.

Original language	English
Pages (from-to)	180-183
Number of pages	4
Journal	Physica C: Superconductivity and its applications
Volume	185-189
Issue number	PART 1
DOIs	https://doi.org/10.1016/0921-4534(91)91969-B
State	Published - 1 Dec 1991

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Cava, R. J., Van Dover, R. B., Batlogg, B., Krajewski, J. J., Schneemeyer, L. F., Siegrist, T., Hessen, B., Chen, S. H., Peck, W. F., & Rupp, L. W. (1991). Superconductivity in multiple phase Sr₂Ln_1-xCa_xGaCu₂O₇ and characterization of La_2-xSr_xCaCu₂O_6+δ. Physica C: Superconductivity and its applications, 185-189(PART 1), 180-183. https://doi.org/10.1016/0921-4534(91)91969-B

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title = "Superconductivity in multiple phase Sr2Ln1-xCaxGaCu2O7 and characterization of La2-xSrxCaCu2O6+δ",

abstract = "We have observed the occurrance of superconductivity at temperatures between 40 and 50K for multiple phase samples of Sr2Ln1-xCaxGaCu2O7 treated at 950-1000°C at 25 atmospheres oxygen pressure. We have not been able to find conditions at oxygen pressures of 25 atmospheres or below which make single phase samples superconducting. We also report the characterization of the properties of the simple double-layer 60K superconductor La2-xSrxCaCu2O6±δ. The optimal properties occur at x = 0.35 and δ = 0.0.",

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AU - Cava, R. J.

AU - Van Dover, R. B.

AU - Batlogg, B.

AU - Krajewski, J. J.

AU - Schneemeyer, L. F.

AU - Siegrist, T.

AU - Hessen, B.

AU - Chen, S. H.

AU - Peck, W. F.

AU - Rupp, L. W.

PY - 1991/12/1

Y1 - 1991/12/1

N2 - We have observed the occurrance of superconductivity at temperatures between 40 and 50K for multiple phase samples of Sr2Ln1-xCaxGaCu2O7 treated at 950-1000°C at 25 atmospheres oxygen pressure. We have not been able to find conditions at oxygen pressures of 25 atmospheres or below which make single phase samples superconducting. We also report the characterization of the properties of the simple double-layer 60K superconductor La2-xSrxCaCu2O6±δ. The optimal properties occur at x = 0.35 and δ = 0.0.

AB - We have observed the occurrance of superconductivity at temperatures between 40 and 50K for multiple phase samples of Sr2Ln1-xCaxGaCu2O7 treated at 950-1000°C at 25 atmospheres oxygen pressure. We have not been able to find conditions at oxygen pressures of 25 atmospheres or below which make single phase samples superconducting. We also report the characterization of the properties of the simple double-layer 60K superconductor La2-xSrxCaCu2O6±δ. The optimal properties occur at x = 0.35 and δ = 0.0.

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JO - Physica C: Superconductivity and its applications

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IS - PART 1

ER -

Superconductivity in multiple phase Sr₂Ln_1-xCa_xGaCu₂O₇ and characterization of La_2-xSr_xCaCu₂O_6+δ

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