Anomalous NMR magnetic shifts in CeCoIn5 -: art. no. 180514

被引：112

作者：

Curro, NJ

Simovic, B

Hammel, PC

Pagliuso, PG

Sarrao, JL

Thompson, JD

Martins, GB

机构：

[1] Los Alamos Natl Lab, Los Alamos, NM 87545 USA

[2] Natl High Magnet Field Lab, Tallahassee, FL 32306 USA

[3] Florida State Univ, Tallahassee, FL 32306 USA

来源：

PHYSICAL REVIEW B | 2001年 / 64卷 / 18期

关键词：

D O I：

10.1103/PhysRevB.64.180514

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report In-115 and Co-59 nuclear magnetic resonance (NMR) measurements in the heavy fermion superconductor CeCoIn5 above and below T-c. The hyperfine couplings of the In-115 and Co-59 are anisotropic and exhibit dramatic changes below 50 K due to changes in the crystal field level populations of the Ce ions. suggesting localized f electrons. Below T-c the spin susceptibility is suppressed, indicating singlet pairing.

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页数：4

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