Competition of antiferromagnetism and superconductivity in Cr-Ru alloys

被引：12

作者：

Chatani, K

Endoh, Y

机构：

[1] Tohoku Univ, Dept Phys, Sendai, Miyagi 9808578, Japan

[2] Tohoku Univ, Inst Mat Res, Aoba Ku, Sendai, Miyagi 9808577, Japan

来源：

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 2003年 / 72卷 / 01期

关键词：

Cr-Ru alloy; spin density wave; superconductivity; phase transition;

D O I：

10.1143/JPSJ.72.17

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report experimental results from systematic studies on the interplay between the antiferromagnetic spin density wave and the superconductivity in Cr1-xRux alloys. Unlike previous reports, the two phases never coexist and the phase transition as the function of x appears to be of the first order. This clean evidence leads to a conclusion that the antiferromagnetic SDW is stabilized by the excitonic phase formation competing with the Bose condensation of the superconductivity in Cr1-xRux alloys.

引用

页码：17 / 20

页数：4