Quasiparticle properties of strongly correlated electron systems with itinerant metamagnetic behavior

Abstract

A brief account of the zero temperature magnetic response of a system of strongly correlated electrons in strong magnetic field is given in terms of its quasiparticle properties. The scenario is based on the paramagnetic phase of the half-filled Hubbard model, and the calculations are carried out with the dynamical mean field theory (DMFT) together with the numerical renormalization group (NRG). As well known, in a certain parameter regime one finds a magnetic susceptibility which increases with the field strength. Here, we analyze this metamagnetic response based on Fermi liquid parameters, which can be calculated within the DMFT-NRG procedure. The results indicate that the metamagnetic response can be driven by field-induced effective mass enhancement. However, also the contribution due to quasiparticle interactions can play a significant role. We put our results in context with experimental studies of itinerant metamagnetic materials.

6 pages, 4 figures

References in corpus (20)

• The numerical renormalization group method for quantum impurity systems
• Sum-rule Conserving Spectral Functions from the Numerical Renormalization Group
• Numerical Renormalization Group Calculations for the Self-energy of the impurity Anderson model
• A Numerical Renormalization Group approach to Green's Functions for Quantum Impurity Models
• Dynamical mean-field theory for pairing and spin gap in the attractive Hubbard model
• First-Order Pairing Transition and Single-Particle Spectral Function in the Attractive Hubbard Model
• Renormalized Parameters for Impurity Models
• Itinerant metamagnetism of CeRu2Si2 : bringing out the dead. Comparison with the new Sr3Ru2O7 case
• Metamagnetism of itinerant electrons in multi-layer ruthenates
• Effect of a magnetic field on Mott-Hubbard systems
• Magnetic Field Effects on Quasiparticles in Strongly Correlated Local Systems
• Magnetic-Field-Induced Mott Transition in a Quasi-Two-Dimensional Organic Conductor
• Insulator-to-metal transition in Kondo insulators under strong magnetic field
• Van Hove singularity and spontaneous Fermi surface symmetry breaking in Sr3Ru2O7
• Charge instabilities at the metamagnetic transition
• Field dependent quasiparticles in the infinite dimensional Hubbard model
• Field dependent quasiparticles in models of strongly correlated electrons
• Investigation into the Itinerant metamagnetism of Sr3Ru2O7 for the Field Parallel to the Ruthenium Oxygen Planes
• Strong-coupling scenario of a metamagnetic transition
• Renormalized quasiparticles in antiferromagnetic states of the Hubbard model

Cited by in corpus (14)

• Van Hove singularities in the paramagnetic phase of the Hubbard model: a DMFT study
• Selective insulators and anomalous responses in correlated fermions with synthetic extra dimensions
• Fermi Surface Properties, Metamgnetic Transition and Quantum Phase Transition of CeRu${}_2$Si${}_2$ and Its Alloys Probed by the dHvA Effect--Fermi Surface Studies on the Itinerant and Localized Dichotomy of $f$ Electron Nature
• Convergence acceleration and stabilization for dynamical-mean-field-theory calculations
• Anderson lattice with explicit Kondo coupling: general features and the field-induced suppression of heavy-fermion state in ferromagnetic phase
• Properties of an almost localized Fermi liquid in applied magnetic field revisited: Statistically consistent Gutzwiller approach
• Metamagnetism and the Fifth Order Susceptibility in UPt3
• Repulsive vs. attractive Hubbard model: transport properties and spin-lattice relaxation rate
• Universality in the Magnetic Response of Metamagnetic Metals
• Unconventional superconducting phases in a correlated two-dimensional Fermi gas of nonstandard quasiparticles: a simple model
• A Strange Metal from Gutzwiller correlations in infinite dimensions
• Spin-selective localization of correlated lattice fermions
• Field dependent dynamics in the metallic regime of the half-filled Hubbard model
• Renormalized parameters and perturbation theory in dynamical mean-field theory for the Hubbard model