Ferromagnetism in UGe2 : A microscopic model

Abstract

Anderson lattice model is used to rationalize the principal features of the heavy fermion compound UGe2 by means of the generalized Gutzwiller approach (the SGA method). This microscopic approach successfully reproduces magnetic and electronic properties of this material, in a qualitative agreement with experimental findings from the magnetization measurements, the neutron scattering, and the de Haas-van Alphen oscillations. Most importantly, it explains the appearance, sequence, character, and evolution in an applied magnetic field of the observed in UGe2 ferro- and, para-magnetic phases as an effect of a competition between the f-f electrons Coulomb interaction energy and f-conduction electrons kinetic energy (hybridization)

submitted to Phys. Rev. B

References in corpus (25)

• Superconducting phases of f-electron compounds
• Pressure dependence of the magnetization in the ferromagnetic superconductor UGe_2
• Magnetism, Spin-Orbit Coupling, and Superconducting Pairing in UGe${}_2$
• Ferromagnetism and Superconductivity in Uranium Compounds
• Tricritical behavior in itinerant quantum ferromagnets
• Tricritical point and wing structure in the itinerant ferromagnet UGe2
• Ferromagnetic superconductivity driven by changing Fermi surface topology
• Quantum critical effects on transition temperature of magnetically mediated p-wave superconductivity
• Strong Enhancement of Superconducting T_c in Ferromagnetic Phases
• High-temperature superconductivity in the Hubbard model: Gutzwiller wave-function solution
• Intrinsic optical dichroism in the chiral superconducting state of Sr${}_2$RuO${}_4$
• Renormalized mean-field t-J model of high-Tc superconductivity: comparison with experiment
• Spin-triplet superconducting pairing due to local (Hund's rule, Dirac) exchange
• The Kerr rotation in the unconventional superconductor Sr${}_2$RuO${}_4$
• d-wave superconductivity and its coexistence with antiferromagnetism in t-J-U model: Statistically consistent Gutzwiller approach
• High temperature superconductivity in the two-dimensional $t$-$J$ model: Gutzwiller wave function solution
• A consistent statistical treatment of the renormalized mean-field t-J model
• Even-parity spin-triplet pairing for orbitally degenerate correlated electrons by purely repulsive interactions
• Coexistence of antiferromagnetism and superconductivity within t-J model with strong correlations and nonzero spin polarization
• Ferromagnetism and Fermi-surface transition in the periodic Anderson model: Second-order phase transition without symmetry breaking
• Coexistence of spin-triplet superconductivity with magnetism within a single mechanism for orbitally degenerate correlated electrons: Statistically-consistent Gutzwiller approximation
• Properties of an almost localized Fermi liquid in applied magnetic field revisited: Statistically consistent Gutzwiller approach
• Anderson lattice with explicit Kondo coupling: general features and the field-induced suppression of heavy-fermion state in ferromagnetic phase
• Extended Hubbard model with renormalized Wannier wave functions in the correlated state III: Statistically consistent Gutzwiller approximation and the metallization of atomic solid hydrogen
• Coexistence of spin-triplet superconductivity with magnetic ordering in an orbitally degenerate system: Hartree-Fock-BCS approximation revisited

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• Comparison of two approaches for the treatment of Gutzwiller variational wave functions
• Mechanism for transitions between ferromagnetic and antiferromagnetic orders in $d$-electron metallic magnets
• Gutzwiller Wave-Function Solution for Anderson Lattice Model: Emerging Universal Regimes of Heavy Quasiparticle States
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• Evaluation techniques for Gutzwiller wave functions in finite dimensions
• Strong correlation between ferromagnetic superconductivity and pressure-enhanced ferromagnetic fluctuations in UGe${}_2$
• Spin-triplet paired phases inside ferromagnet induced by Hund's rule coupling and electronic correlations: Application to ${\mathrm{UGe}}_2$
• Tricritical wings in UGe${}_2$: A microscopic interpretation
• Microscopic mechanism for the unusual antiferromagnetic order and the pressure-induced transition to ferromagnetism in USb${}_2$
• Combined shared and distributed memory ab-initio computations of molecular-hydrogen systems in the correlated state: process pool solution and two-level parallelism
• Charge and heat transport through quantum dots with local and correlated-hopping interactions
• Coexistent spin-triplet superconducting and ferromagnetic phases induced by the Hund's rule coupling and electronic correlations II: Effect of applied magnetic field
• Degenerate orbital effect in a three orbital periodic Anderson model
• Spatially modulated, orbital selective ferromagnetism in La${}_5$Co${}_2$Ge${}_3$