Properties of an almost localized Fermi liquid in applied magnetic field revisited: Statistically consistent Gutzwiller approach

Abstract

We discuss the Hubbard model in an applied magnetic field and analyze the properties of neutral spin-1/2 fermions within the so-called statistically consistent Gutzwiller approximation (SGA). The magnetization curve reproduces in a semiquantitative manner the experimental data for liquid 3 He in the regime of moderate correlations and in the presence of small number of vacant cells, modeled by a non-half filled-band situation, when a small number of vacancies (up to 5%) is introduced in the virtual fcc lattice. We also present the results for the magnetic susceptibility and the specific heat, in which a metamagnetic-like behavior is also singled out in a non-half-filled band case.

References in corpus (4)

• Field dependent quasiparticles in the infinite dimensional Hubbard model
• Quasiparticle properties of strongly correlated electron systems with itinerant metamagnetic behavior
• The QCD Phase Structure at High Baryon Density
• Statistically-consistent Gutzwiller approach and its equivalence with the mean-field slave-boson method for correlated systems

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