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Prog. Theor. Phys. Vol. 98 No. 2 (1997) pp. 331-349

[ Full Text PDF : FREE ACCESS (934K) ]

Hund's-Rule Coupling Effect in Itinerant Ferromagnetism

Takuya Okabe

Department of Physics, Kyoto University, Kyoto 606-01

(Received November 30, 1996)

Abstract:

We present a general model which includes the ferromagnetic Kondo lattice and the Hubbard model as special cases. The stability of the ferromagnetic state is investigated variationally. We discuss the mechanism of ferromagnetism in metallic Ni, emphasizing the importance of orbital degeneracy and the effect of the Hund's-rule coupling.


URL : http://ptp.ipap.jp/link?PTP/98/331/
DOI : 10.1143/PTP.98.331

[ Full Text PDF : FREE ACCESS (934K) ] Citation:

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Citing Article(s) :

  1. Journal of the Physical Society of Japan 69 (2000) pp. 1837-1844 :
    Magnetic Order in the Double Exchange Model in Infinite Dimensions
    Kentaro Nagai, Tsutomu Momoi and Kenn Kubo

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