Enhancement of superconductivity in Bi2Sr2CaCu2O8+δ

T. Takabatake; W. Ye; S. Orimo; H. Kawanaka; H. Fujii; H. Sasakura; S. Minamigawa

doi:10.1016/0921-4534(89)90013-0

Enhancement of superconductivity in Bi₂Sr₂CaCu₂O_8+δ

T. Takabatake, W. Ye, S. Orimo, H. Kawanaka, H. Fujii, H. Sasakura, S. Minamigawa

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Abstract

We found that T_c of Bi₂Sr₂CaCu₂O_8+δ increases from 80 to 90 K by hydrogen absorption without a significant depression of the superconducting volume fraction. The enhancement of T_c may be induced by the decrease in hole concentration which is in excess for the superconductivity in the host compound. For the 110 K phase of Bi_1.6Pb_0.4Sr₂Ca₂Cu₃O_10+δ, however, no enhancement of T_c was achieved upon hydrogenation.

Original language	English
Pages (from-to)	263-266
Number of pages	4
Journal	Physica C: Superconductivity and its Applications
Volume	157
Issue number	2
DOIs	https://doi.org/10.1016/0921-4534(89)90013-0
Publication status	Published - 1989 Feb 1

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abstract = "We found that Tc of Bi2Sr2CaCu2O8+δ increases from 80 to 90 K by hydrogen absorption without a significant depression of the superconducting volume fraction. The enhancement of Tc may be induced by the decrease in hole concentration which is in excess for the superconductivity in the host compound. For the 110 K phase of Bi1.6Pb0.4Sr2Ca2Cu3O10+δ, however, no enhancement of Tc was achieved upon hydrogenation.",

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AU - Takabatake, T.

AU - Ye, W.

AU - Orimo, S.

AU - Kawanaka, H.

AU - Fujii, H.

AU - Sasakura, H.

AU - Minamigawa, S.

PY - 1989/2/1

Y1 - 1989/2/1

N2 - We found that Tc of Bi2Sr2CaCu2O8+δ increases from 80 to 90 K by hydrogen absorption without a significant depression of the superconducting volume fraction. The enhancement of Tc may be induced by the decrease in hole concentration which is in excess for the superconductivity in the host compound. For the 110 K phase of Bi1.6Pb0.4Sr2Ca2Cu3O10+δ, however, no enhancement of Tc was achieved upon hydrogenation.

AB - We found that Tc of Bi2Sr2CaCu2O8+δ increases from 80 to 90 K by hydrogen absorption without a significant depression of the superconducting volume fraction. The enhancement of Tc may be induced by the decrease in hole concentration which is in excess for the superconductivity in the host compound. For the 110 K phase of Bi1.6Pb0.4Sr2Ca2Cu3O10+δ, however, no enhancement of Tc was achieved upon hydrogenation.

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Enhancement of superconductivity in Bi₂Sr₂CaCu₂O_8+δ

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