Abstract
Nuclear quadupole resonance (NQR) measurements have been performed on the Pu-based superconductor PuRhGa5 with a transition temperature of ∼ 8.8 K. NQR lines ascribed to 69Ga (2), 71Ga (2), and 69Ga (1) have been found in zero field. Spin-lattice relaxation rate (1 / T1) data for these lines have been measured in the superconducting state. The temperature variation of 1 / T1 can be interpreted in terms of a line-nodal superconducting gap. Data for both the 69Ga (2) and 69Ga (1) NQR lines show a constant-T1 T behavior between Tc and T* ∼ 30 K, which suggests that a coherent Fermi-liquid state sets in below T*. The modified Korringa relation using 1 / T1 and Knight shift data in an applied field indicates that the normal state of PuRhGa5 can be regarded as an antiferromagnetically correlated metal.
Original language | English |
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Pages (from-to) | 2103-2106 |
Number of pages | 4 |
Journal | Journal of Physics and Chemistry of Solids |
Volume | 68 |
Issue number | 11 |
DOIs | |
Publication status | Published - 2007 Nov |
Keywords
- A. Superconductor
- D. NQR
ASJC Scopus subject areas
- Chemistry(all)
- Materials Science(all)
- Condensed Matter Physics