کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1627817 | 1516461 | 2006 | 5 صفحه PDF | دانلود رایگان |
Experiments that probe the normal and superconducting states of the heavy-fermion compounds CeMIn5, MCo, Rh, Ir, consistently point to the dependence of superconductivity on magnetism and, consequently, to the conclusion that soft magnetic excitations produce Cooper pairing. A more limited number of experiments on the isostructural superconductors PuMGa5, MCo, Rh, also are consistent with a magnetic pairing mechanism, but in these cases, the relationship between magnetism and superconductivity is less obvious. A connection between the Ce- and Pu-based families of unconventional superconductors is provided through a common dependence of their superconducting transition temperatures on lattice anisotropy and a weak structural distortion that may reflect a hybridization-induced change in magnetic fluctuations.
Journal: Journal of Alloys and Compounds - Volumes 408–412, 9 February 2006, Pages 16–20