Superconductivity in compressed iron: Role of spin fluctuations

被引：46

作者：

Mazin, II ^{[1
]}

Papaconstantopoulos, DA ^{[1
]}

Mehl, MJ ^{[1
]}

机构：

[1] USN, Ctr Computat Mat Sci, Res Lab, Washington, DC 20375 USA

来源：

PHYSICAL REVIEW B | 2002年 / 65卷 / 10期

关键词：

D O I：

10.1103/PhysRevB.65.100511

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The recent discovery of superconductivity in hexagonal iron under pressure poses a question about whether it is of conventional (phonon) or unconventional (magnetic) origin. We present first-principles calculations of the electron-phonon coupling in iron at Pgreater than or similar to15 GPa, and argue that a conventional mechanism can explain the appearance of superconductivity, but not its rapid disappearance at Pgreater than or similar to30 GPa. We suggest that spin fluctuations, ferro- and/or antiferromagnetic, play a crucial role in superconductivity in this case.

引用

页码：1 / 4

页数：4

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