# Superconductivity above 150 K in HgBa2Ca2Cu3O8+δ at high pressures

@article{Chu1993SuperconductivityA1,
title={Superconductivity above 150 K in HgBa2Ca2Cu3O8+$\delta$ at high pressures},
author={Ching-Wu Chu and L. Gao and F. C. Chen and Z. J. Huang and Ronald Meng and Y. Y. Xue},
journal={Nature},
year={1993},
volume={365},
pages={323-325}
}
RECENTLY, superconductivity at >130 K was reported1,2 in multiphase samples of the compound system HgBa2Can−1CunO2n+2+δ (Hg-12(n−l)n) with n = 1, 2, 3,.... Single-phase Hg-1223 was subsequently synthesized and found to be superconducting at a record temperature of 135 K (ref. 3). It remains to be seen if a much higher transition temperature (Tc) than 135K can be achieved in this compound system. The application of pressure generally increases the Tc of underdoped layered cuprates, with a… Expand
491 Citations
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#### References

SHOWING 1-5 OF 5 REFERENCES
Superconductivity above 130 K in the Hg–Ba–Ca–Cu–O system
• Chemistry
• Nature
• 1993
THE recent discovery1 of superconductivity below a transition temperature (Tc) of 94 K in HgBa2CuO4+δ has extended the repertoire of high-Tc superconductors containing copper oxide planes embedded inExpand
Study of superconductivity in the Hg-Ba-Ca-Cu-O system
Abstract The high temperature superconducting Hg-Ba-Ca-Cu-O (HBCCO) compound system reported by Schilling et al. has been reproduced with an onset transition-temperature ( T c0 ) up to ≁140 K and aExpand
Physical properties of high temperature superconductors
While a great effort has been made to discover new high temperature superconductors, a large-scale, parallel effort has been made to determine the fundamental properties of these fascinating newExpand
Frontiers of high-pressure research
• Materials Science
• 1991
Polymers and Low Dimensional Systems: Polymers Under Pressure W. Pechhold. Ion Transport Mechanisms in Polymer Electrolytes at Normal and High Pressuree BE. Mellander, et al. Molecular Crystals,Expand