New β(fcc)-cobalt to 210 GPa

被引：120

作者：

Yoo, CS ^{[1
]}

Cynn, H ^{[1
]}

Söderlind, P ^{[1
]}

Iota, V ^{[1
]}

机构：

[1] Univ Calif Lawrence Livermore Natl Lab, Phys Directorate, H Div, Livermore, CA 94551 USA

来源：

PHYSICAL REVIEW LETTERS | 2000年 / 84卷 / 18期

关键词：

D O I：

10.1103/PhysRevLett.84.4132

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report a new phase transition in cobalt from the magnetic epsilon(hcp) to a beta(fcc) phase, likely nonmagnetic, at 105 GPa. It occurs martensitically in an extended pressure region between 105 and 150 GPa without any apparent volume change. The fee phase of Co is in systematic accordance with the id and 5d counterparts. The pressure-volume isotherm of beta-Co resembles those of alpha(fcc)-Ni and epsilon(hcp)-Fe within 1%. The phase diagram of cobalt suggests that the fee stability increases with increasing occupancy of d-band electrons from Fe to Co to Ni.

引用

页码：4132 / 4135

页数：4

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