Large enhancement of Tc in the 134 K superconductor HgBa2Ca2Cu3Oy under high pressure

H. Takahashi; A. Tokiwa-Yamamoto; N. Môri; S. Adachi; H. Yamauchi; S. Tanaka

doi:10.1016/0921-4534(93)90256-P

Large enhancement of T_c in the 134 K superconductor HgBa₂Ca₂Cu₃O_y under high pressure

H. Takahashi, A. Tokiwa-Yamamoto, N. Môri, S. Adachi, H. Yamauchi, S. Tanaka

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

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Abstract

The onset temperature (T_c) of the Meissner signal for HgBa₂Ca₂Cu₃O_y (which is 134 K under normal pressure) has been measured under high pressure up to 11 Gpa. It is observed that T_c increases with increasing pressure at the rate of dT_c/dP = 2. 0. K/ GPa and then dT_c/dP becomes relatively small above 6 GPa. The maximum of T_c observed in this experiment is as high as 150 K at 11 GPa. This value is higher than those reported for any high-temperature superconductors.

Original language	English
Pages (from-to)	1-4
Number of pages	4
Journal	Physica C: Superconductivity and its applications
Volume	218
Issue number	1-2
DOIs	https://doi.org/10.1016/0921-4534(93)90256-P
Publication status	Published - 1993 Dec 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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10.1016/0921-4534(93)90256-P

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abstract = "The onset temperature (Tc) of the Meissner signal for HgBa2Ca2Cu3Oy (which is 134 K under normal pressure) has been measured under high pressure up to 11 Gpa. It is observed that Tc increases with increasing pressure at the rate of dTc/dP = 2. 0. K/ GPa and then dTc/dP becomes relatively small above 6 GPa. The maximum of Tc observed in this experiment is as high as 150 K at 11 GPa. This value is higher than those reported for any high-temperature superconductors.",

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T1 - Large enhancement of Tc in the 134 K superconductor HgBa2Ca2Cu3Oy under high pressure

AU - Takahashi, H.

AU - Tokiwa-Yamamoto, A.

AU - Môri, N.

AU - Adachi, S.

AU - Yamauchi, H.

AU - Tanaka, S.

PY - 1993/12/1

Y1 - 1993/12/1

N2 - The onset temperature (Tc) of the Meissner signal for HgBa2Ca2Cu3Oy (which is 134 K under normal pressure) has been measured under high pressure up to 11 Gpa. It is observed that Tc increases with increasing pressure at the rate of dTc/dP = 2. 0. K/ GPa and then dTc/dP becomes relatively small above 6 GPa. The maximum of Tc observed in this experiment is as high as 150 K at 11 GPa. This value is higher than those reported for any high-temperature superconductors.

AB - The onset temperature (Tc) of the Meissner signal for HgBa2Ca2Cu3Oy (which is 134 K under normal pressure) has been measured under high pressure up to 11 Gpa. It is observed that Tc increases with increasing pressure at the rate of dTc/dP = 2. 0. K/ GPa and then dTc/dP becomes relatively small above 6 GPa. The maximum of Tc observed in this experiment is as high as 150 K at 11 GPa. This value is higher than those reported for any high-temperature superconductors.

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Large enhancement of T_c in the 134 K superconductor HgBa₂Ca₂Cu₃O_y under high pressure

Abstract

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