Thermodynamic properties of Fermi systems with flat single-particle spectra

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dc.creatorKhodel, V. A.
dc.creatorClark, J. W.
dc.creatorZverev, M. V.
dc.date2005-02-11
dc.date.accessioned2026-07-07T09:28:40Z
dc.date.available2026-07-07T09:28:40Z
dc.descriptionThe behavior of strongly correlated Fermi systems is investigated beyond the onset of a phase transition where the single-particle spectrum $ξ({\bf p})$ becomes flat. The Landau-Migdal quasiparticle picture is shown to remain applicable on the ordered side of this transition. Nevertheless, low-temperature properties evaluated within this picture show profound changes relative to results of Landau theory, as a direct consequence of the flattening of $ξ({\bf p})$. Stability conditions for this class of systems are examined, and the nature of antiferromagnetic quantum phase transitions is elucidated.
dc.description5 pages, 5 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0502292
dc.identifierhttp://arxiv.org/abs/cond-mat/0502292
dc.identifierEurophys. Lett. 72, 256 (2005)
dc.identifierdoi:10.1209/epl/i2005-10233-9
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/157507
dc.subjectStrongly Correlated Electrons
dc.titleThermodynamic properties of Fermi systems with flat single-particle spectra
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