Phase transition in the normal state of the non-centrosymmetric superconductor Mo3Al2C

被引：2

作者：

Koyama, T. ^{[1
]}

Ozaki, Y. ^{[1
]}

Ueda, K. ^{[1
]}

Mito, T. ^{[1
]}

Kohara, T. ^{[1
]}

Waki, T. ^{[2
]}

Tabata, Y. ^{[2
]}

Nakamura, H. ^{[2
]}

机构：

[1] Univ Hyogo, Grad Sch Mat Sci, Kamigori, Hyogo 6781297, Japan

[2] Kyoto Univ, Dept Mat Sci & Engn, Kyoto 6068501, Japan

来源：

INTERNATIONAL CONFERENCE ON STRONGLY CORRELATED ELECTRON SYSTEMS (SCES 2011) | 2012年 / 391卷

关键词：

D O I：

10.1088/1742-6596/391/1/012097

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We found a phase transition in the normal state of superconducting carbide, Mo3Al2C by nuclear magnetic resonance (NMR) measurement. At similar to 130 K the sharp central NMR line broadens and has additional broad components at the foot. In addition, the Knight shift and the spin-lattice relaxation rate exhibit a significant decrease, suggesting the reduction in the conduction electron density. From these results, Mo3Al2C undergoes the phase transition which can be understood as the charge-density wave ordering. The decrease in 1/T-1 confirms the superconductivity appears in the partially quenched Fermi surface.

引用

页数：4

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