| Issue |
Europhys. Lett.
Volume 75, Number 2, July 2006
|
|
|---|---|---|
| Page(s) | 308 - 314 | |
| Section | Condensed matter: electronic structure, electrical, magnetic, and optical properties | |
| DOI | https://doi.org/10.1209/epl/i2006-10103-0 | |
| Published online | 16 June 2006 | |
Exotic pairing instability in the heavy-fermion superconductor
1
Max-Planck-Institute for Solid State Research - Heisenbergstr.1, D-70569 Stuttgart Germany
2
Los Alamos National Laboratory, Theoretical Division - Los Alamos, NM 87545, USA
Received:
10
January
2006
Accepted:
29
May
2006
Superconductivity in the heavy-fermion compound has recently
been found to be due to multiple-band effects (Phys. Rev. Lett., 94
(2005) 107005) with a distinct two-gap structure. It is shown here that the
enormously enhanced values of the gap ratios with respect to 
have an
unusual origin with the electron dynamics mainly governed by f-p
hybridization.
PACS: 74.70.Tx – Heavy-fermion superconductors / 74.20.-z – Theories and models of superconducting state / 74.20.Rp – Pairing symmetries (other than s-wave)
© EDP Sciences, 2006
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