Phys. Rev. B 70, 054513 (2004) [10 pages]Spin-triplet s-wave local pairing induced by Hund’s rule couplingReceived 10 November 2003; published 19 August 2004 We show within the dynamical mean field theory that local multiplet interactions such as Hund’s rule coupling produce local pairing superconductivity in the strongly correlated regime. Spin-triplet superconductivity driven by the Hund’s rule coupling emerges from the pairing mediated by local fluctuations in pair exchange. In contrast to the conventional spin-triplet theories, the local orbital degrees of freedom has the antisymmetric part of the exchange symmetry, leaving the spatial part as fully gapped and symmetric s-wave. © 2004 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevB.70.054513
DOI:
10.1103/PhysRevB.70.054513
PACS:
74.20.Rp, 74.70.Wz
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