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arXiv · 1407.6886

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

Marcin M. Wysokinski·Jozef Spalek
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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.

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Marcin M. Wysokinski, Jozef Spalek. 2014-07-25. Properties of an almost localized Fermi liquid in applied magnetic field revisited: Statistically consistent Gutzwiller approach. https://doi.org/10.1088/0953-8984%2F26%2F5%2F055601

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