Anisotropic spin fluctuations in CeCoIn5

被引:7
|
作者
Curro, N. J. [1 ]
Pines, D. [2 ]
机构
[1] Los Alamos Natl Lab, Condensed Matter & Thermal Phys, Los Alamos, NM 87545 USA
[2] Univ Calif Davis, Davis, CA 95616 USA
关键词
superconductors; nuclear magnetic resonance; magnetic properties;
D O I
10.1016/j.jpcs.2007.08.020
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
CeCoIn5 is an unconventional heavy fermion superconductor with a relatively large transition temperature T-c = 2.3 K. NMR measurements of the spin lattice relaxation rate at the In(1) site reveal a significant anisotropy of the fluctuating hyperfine fields, which reverses below 30 K. These results suggest that two-dimensional fluctuations of the Ce 4f moments are relevant for the superconducting pairing. Published by Elsevier Ltd.
引用
收藏
页码:2028 / 2030
页数:3
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