Favorable magnetic fluctuation anisotropy for unconventional superconductivity in f-electron systems
S. Kambe, H. Sakai, Y. Tokunaga, T. Fujimoto, R. E. Walstedt, S. Ikeda, D. Aoki, Y. Homma, Y. Haga, Y. Shiokawa, Y. Ōnuki
DOI 10.1103/PhysRevB.75.140509 · Physical Review B
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Abstract
We report spin-lattice relaxation time measurements in isostructural (HoCoGa5-type) actinide compounds with different ground states (paramagnet, antiferromagnet, and superconductor) using single-crystal samples. The anisotropy of local magnetic fluctuations due to LS coupling on the actinide (magnetic) site is evaluated. In the superconductor PuRhGa5, the XY-type magnetic anisotropy is strong compared with nonsuperconducting compounds. Favorable magnetic anisotropy for d-wave superconductivity in f-electron systems is discussed.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| PuCoGa5 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 18 | Pressure not reported | unknown |
| PuRhGa5 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 9 | Pressure not reported | unknown |
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