Spin-triplet s-wave local pairing induced by Hund's rule coupling

Details Spin-triplet s-wave local pairing induced by Hund's rule coupling Spin-triplet s-wave local pairing induced by Hund's rule coupling

2004-01-07

arxiv.org/abs/cond-mat/0401104v1

Physics

Condensed Matter

Strongly Correlated Electrons

9 pages, 7 figures

Scientific paper

10.1103/PhysRevB.70.054513

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 anti-symmetric part of the exchange symmetry, leaving the spatial part as fully gapped and symmetric s-wave.

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