Hund's rule theory for heavy fermion superconductors.

  title={Hund's rule theory for heavy fermion superconductors.},
  journal={Physical review letters},
  volume={72 13},
  • Norman
  • Published 12 May 1993
  • Physics, Medicine
  • Physical review letters
In this paper, a multiorbital generalization of standard spin fluctuation theory is considered within an on-site approximation. For [ital f] electrons, this theory leads to an instability for a superconducting pair state which obeys Hund's rules, with [ital L]=5, [ital S]=1, and [ital J]=4. The degeneracy of this state is broken by crystalline effects, and realistic calculations for UPt[sub 3] find a pair state with [Gamma][sub 6][sup [minus]] ([ital E][sub 2[ital u]]) symmetry, consistent with… 
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