Strongly correlated Fermi-systems: non-Fermi liquid behavior, quasiparticle effective mass and their interplay
arXiv:0904.1799 · doi:10.1016/j.physleta.2009.04.046
Abstract
Basing 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.
7 pages, 5 figures
References in corpus (17)
- Fermi-liquid instabilities at magnetic quantum phase transitions
- Quantum Criticality in Heavy Fermion Metals
- Quantum criticality
- Weak magnetism and non-Fermi liquids near heavy-fermion critical points
- Quantum magnetism and criticality
- Quantum phase transitions from topology in momentum space
- Multiple energy scales at a quantum critical point
- Topology of the Fermi Surface Beyond the Quantum Critical Point
- Divergence of the Magnetic Grüneisen Ratio at the Field-Induced Quantum Critical Point in YbRhSi
- Anomalous Behavior of Thermodynamic Properties of Strongly Correlated Fermi Systems
- Fermion Condensation and Non Fermi Liquid Behavior in a Model with Long Range Forces
- Curie law, entropy excess, and superconductivity in heavy fermion metals and other strongly interacting Fermi liquids
- Universal Behavior of Two-Dimensional 3He at Low Temperatures
- Quasiparticle picture of high temperature superconductors in the frame of Fermi liquid with the fermion condensate
- Quasiparticles and quantum phase transition in universal low-temperature properties of heavy-fermion metals
- Universal low-temperature behavior of the CePd_{1-x}Rh_x ferromagnet
- Energy scales and magnetoresistance at a quantum critical point
Cited by in corpus (8)
- New state of matter: heavy-fermion systems, quantum spin liquids, quasicrystals, cold gases, and high temperature superconductors
- Quasiparticles of strongly correlated Fermi liquids at high temperatures and in high magnetic fields
- Strongly correlated Fermi systems as a new state of matter
- Energy scales and the non-Fermi liquid behavior in YbRh2Si2
- Magnetic-field-induced reentrance of Fermi-liquid behavior and spin-lattice relaxation rates in YbCu_{5-x}Au_x
- Fermion condensate generates a new state of matter by making flat bands
- Behavior of the antiferromagnetic phase transition near the fermion condensation quantum phase transition in YbRh2Si2
- Scaling behavior of the thermopower of the archetypical heavy-fermion metal