NMR study of novel heavy fermion superconductor CePt3Si

被引：5
|
作者：
Ueda, K. [1 ]
Kohara, T. [1 ]
Motoyama, G. [1 ]
Oda, Y. [1 ]
机构：
[1] Univ Hyogo, Grad Sch Mat Sci, Hyogo 6781297, Japan
来源：
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2007年 / 310卷 / 02期
关键词：
CePt3Si; NMR; superconductivity; relaxation time;
D O I：
10.1016/j.jmmm.2006.10.252
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Si-29 NMR experiments were performed to study microscopically the normal and superconducting states in Si-29 enriched CePt3Si. A Si-29 Knight shift parallel to the c-axis did not decrease below the T-c. The 1/T-1 result taken with a field cycling method showed no distinct coherence peak just below T-c and a steep decrease below T-c on cooling. The estimated value of the superconducting energy gap was about 2 Delta = 3.6 k(B)T(c). These results may be an evidence for triplet pairing superconductivity. (c) 2006 Published by Elsevier B. V.
引用
收藏
页码：608 / 610
页数：3
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