Author/Authors :
H. Sakai، نويسنده , , S. Kambe، نويسنده , , Y. Tokunaga ، نويسنده , , T. Fujimoto، نويسنده , , R.E. Walstedt، نويسنده , , H. Yasuoka، نويسنده , , D. Aoki، نويسنده , , Y. Homma، نويسنده , , E. Yamamoto، نويسنده , , A. Nakamura، نويسنده , , Y. Shiokawa، نويسنده , , K. Nakajima، نويسنده , , Y. Arai، نويسنده , , T.D. Matsuda، نويسنده , , Y. Haga، نويسنده , , Y. Onuki، نويسنده ,
Abstract :
Nuclear quadupole resonance (NQR) measurements have been performed on the Pu-based superconductor PuRhGa5PuRhGa5 with a transition temperature of View the MathML source∼8.8K. NQR lines ascribed to View the MathML sourceGa69(2), View the MathML sourceGa71(2), and View the MathML sourceGa69(1) have been found in zero field. Spin–lattice relaxation rate (1/T11/T1) data for these lines have been measured in the superconducting state. The temperature variation of 1/T11/T1 can be interpreted in terms of a line-nodal superconducting gap. Data for both the View the MathML sourceGa69(2) and View the MathML sourceGa69(1) NQR lines show a constant-T1TT1T behavior between TcTc and View the MathML sourceT*∼30K, which suggests that a coherent Fermi-liquid state sets in below T*T*. The modified Korringa relation using 1/T11/T1 and Knight shift data in an applied field indicates that the normal state of PuRhGa5PuRhGa5 can be regarded as an antiferromagnetically correlated metal.
