Strongly correlated Fermi-systems: non-Fermi liquid behavior, quasiparticle effective mass and their interplay

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dc.creatorShaginyan, V. R.
dc.creatorAmusia, M. Ya.
dc.creatorPopov, K. G.
dc.date2009-04-11
dc.date.accessioned2026-07-07T13:14:21Z
dc.date.available2026-07-07T13:14:21Z
dc.descriptionBasing on the density functional theory of fermion condensation, we analyze the non-Fermi liquid behavior of strongly correlated Fermi-systems such as heavy-fermion metals. When deriving equations for the effective mass of quasiparticles, we consider solids with a lattice and homogeneous systems. We show that the low-temperature thermodynamic and transport properties are formed by quasiparticles, while the dependence of the effective mass on temperature, number density, magnetic fields, etc gives rise to the non-Fermi liquid behavior. Our theoretical study of the heat capacity, magnetization, energy scales, the longitudinal magnetoresistance and magnetic entropy are in good agreement with the remarkable recent facts collected on the heavy-fermion metal YbRh2Si2.
dc.description7 pages, 5 figures
dc.identifierhttps://arxiv.org/abs/0904.1799
dc.identifierhttp://arxiv.org/abs/0904.1799
dc.identifierPhysics Letters A 373 (2009) 2281
dc.identifierdoi:10.1016/j.physleta.2009.04.046
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/230182
dc.subjectStrongly Correlated Electrons
dc.titleStrongly correlated Fermi-systems: non-Fermi liquid behavior, quasiparticle effective mass and their interplay
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