Acta Physica Polonica B

Vol. 34, No. 2, February 2003, page 527


Coexistence of the Spin-Triplet Superconductivity with an Itinerant Ferromagnetism Induced by the Hund's Rule Exchange

P. Wrobel, J. Spalek, W. Wojcik

We discuss the local spin-triplet pairing among correlated fermions that is induced by the Hund's rule coupling in orbitally degenerate systems. The appearance of the spin-polarized superconducting phase makes the Stoner threshold a hidden critical point, since the pairing creates a small but detectable uniform magnetization even below this critical point.

PACS numbers: 71.27.+a, 74.20.Mn, 03.65.Pm


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