Ferromagnetism in the Hubbard model on fcc-type lattices

1997/04/30 by M. Ulmke, Martin Ulmke · 6 citations
Chemistry · Physics and Astronomy · #Advanced Physical and Chemical Molecular Interactions #Cold Atom Physics and Bose-Einstein Condensates #Physics of Superconductivity and Magnetism #cond-mat.str-el

paper · pdf · doi:10.1007/s100510050186

published as Eur. Phys. J. B 1, 301 (1998) · typos corrected, references updated, discussion extented

openalex publication_date 1998/02/01 · arxiv created 1998/04/15 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

Abstract

The Hubbard model on fcc-type lattices is studied in the dynamical mean-field theory of infinite spatial dimensions. At intermediate interaction strength finite temperature Quantum Monte Carlo calculations yield a second order phase transition to a highly polarized, metallic ferromagnetic state. The Curie temperatures are calculated as a function of electronic density and interaction strength. A necessary condition for ferromagnetism is a density of state with large spectral weight near one of the band edges.

Cited by

• Magnetic phases in the correlated Kondo-lattice model
• Ferromagnetism in the Hubbard model with orbital degeneracy in infinite dimensions
• Stabilization ofd-band ferromagnetism by hybridization with uncorrelated bands
• Microscopic conditions favoring itinerant ferromagnetism
• The two-particle propagator and magnetic susceptibility in the Hubbard model
• Random-phase approximation for multi-band Hubbard models