Anomalous NMR magnetic shifts in CeCoIn5 -: art. no. 180514
Anomalous NMR magnetic shifts in CeCoIn5 -: art. no. 180514
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DOI:
10.1103/physrevb.64.180514
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发表时间:
2001-11-01
影响因子:
3.7
通讯作者:
Martins, GB
中科院分区:
文献类型:
--
作者:
Curro, NJ;Simovic, B;Martins, GB
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.