# Hund's rule theory for heavy fermion superconductors.

@article{Norman1994HundsRT, title={Hund's rule theory for heavy fermion superconductors.}, author={Norman}, journal={Physical review letters}, year={1994}, volume={72 13}, pages={ 2077-2080 } }

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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