期刊
JOURNAL OF ALLOYS AND COMPOUNDS
卷 408, 期 -, 页码 51-53出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2005.04.082
关键词
In-115 NQR; CeCoIn5; CeRhIn5; superconductivity; heavy fermion
We have carried out In-115 nuclear quadrupole resonance (NQR) measurements in CeRhIn5 and CeCoIn5 under presure P. The nuclear spinlattice relaxation rates, 1/T-1, of In-115 indicated that the anisotropic superconductivity with line nodes occurred near an antiferromagnetic state. The application of P suppressed the antiferromagnetic, AF, spin fluctuations and moves the system away from the AF state to the non-magnetic Fermi liquid state. The P dependence of 1/T-1 in the superconducting state of CeCoIn5 shows that the magnitude of the superconducting energy gap scales with its T-C up to 3.0 GPa. (c) 2005 Elsevier B.V. All rights reserved.
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