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Phys. Rev. B 40, 9061–9069 (1989)

Metallic ferromagnetism in a single-band model. II. Finite-temperature magnetic properties

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J. E. Hirsch
Department of Physics, B-019, University of California–San Diego, La Jolla, California 92093

Received 20 June 1989; published in the issue dated 1 November 1989

A recently proposed band model to describe metallic ferromagnetism is studied at finite temperatures within the mean-field approximation. We discuss in particular the behavior of critical temperature, specific heat, magnetic susceptibility above Tc, and magnetization below Tc assuming a constant density of states. The model overcomes in a simple way the major difficulties of Stoner theory and yields properties that are consistent with a variety of observations in ferromagnetic metals and alloys.

© 1989 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevB.40.9061
DOI:
10.1103/PhysRevB.40.9061
PACS:
75.10.Lp, 75.30.Et