Superconductivity of Ca exceeding 25 K at megabar pressures

被引：113

作者：

Yabuuchi, Takahiro ^{[1
]}

Matsuoka, Takahiro ^{[1
]}

Nakamoto, Yuki ^{[1
]}

Shimizu, Katsuya ^{[1
]}

机构：

[1] Osaka Univ, KYOKUGEN, Ctr Quantum Sci & Technol Extreme Condit, Toyonaka, Osaka, Japan

来源：

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 2006年 / 75卷 / 08期

关键词：

calcium; high pressure; superconductivity; electrical resistance; alkaline-earth metals;

D O I：

10.1143/JPSJ.75.083703

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The pressure dependence of the superconducting transition temperature T, in calcium was measured up to 161 GPa. T-c increased significantly with pressure and reached 25 K at 161 GPa, which is the highest observed T-c for all elements. Compared with the result obtained in a recent structural experiment, T-c increases within the simple cubic structure phase and becomes rather stable but still increases in the Ca-IV and Ca-V phases.

引用

页数：3

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