Renormalized dispersing multiplets in the spectrum of nearly Mott localized systems
arXiv:1808.06680 · doi:10.1103/PhysRevB.99.125150
Abstract
The spectrum of the strongly correlated systems usually shows resonant peaks at finite energy, with examples in the 115 Ce family which are reproduced by the dynamical mean-field theory. A similar structure has been seen recently in the orbitally selective Mott (OSM) phase of two-band model, known as doublon-holon bound state, with implications on the fate of such phase in the zero Hund's coupling limit. We show that these features can be captured with the slave-particle methods once their Hilbert space is taken into account. We use slave-spin calculations, justifiable in the limit of large dimensions, to explicitly demonstrate this and compare the results with dynamical mean-field theory.
References in corpus (26)
- Dynamical Mean-Field Theory within the Full-Potential Methods: Electronic structure of Ce-115 materials
- Slave-rotor mean field theories of strongly correlated systems and the Mott transition in finite dimensions
- Orbital selective Mott transition in multi-band systems: slave-spin representation and dynamical mean-field theory
- Rotationally-invariant slave-boson formalism and momentum dependence of the quasiparticle weight
- Orbital-selective Mott Phase in Multiorbital Models for Alkaline Iron Selenides K(1-x)Fe(2-y)Se2
- Anderson impurity model at finite Coulomb interaction U: generalized Non-crossing Approximation
- Spectral Properties of the Anderson Impurity Model, Comparison of Numerical Renormalization Group and Non--Crossing Approximation
- Dynamical Mean Field Theory with the Density Matrix Renormalization Group
- Orthogonal Metals: The simplest non-Fermi liquids
- Spin, charge and orbital fluctuations in a multi-orbital Mott insulator
- Dynamical behavior across the Mott transition of two bands with different bandwidths
- Slave spin cluster mean field theory away from half-filling: Application to the Hubbard and the extended Hubbard Model
- Z_2-slave-spin theory for strongly correlated fermions
- Valence Fluctuations and Quasiparticle Multiplets in Pu Chalcogenides and Pnictides
- Doublon-holon origin of the subpeaks at the Hubbard band edges
- Absence of orbital-selective Mott transition in Ca_2-xSr_xRuO4
- Unified character of correlation effects in unconventional Pu-based superconductors and δ-Pu
- Modeling many-body physics with Slave-Spin Mean-Field: Mott and Hund's physics in Fe-superconductors
- Racah materials: role of atomic multiplets in intermediate valence systems
- Doublon-holon binding, Mott transition, and fractionalized antiferromagnet in the Hubbard model
- Mott transition of fermionic mixtures with mass imbalance in optical lattices
- -gauge theory description of the Mott transition in infinite dimensions
- Analytical slave-spin mean-field approach to orbital selective Mott insulators
- Emergent low-energy bound states in the two-orbital Hubbard model
- Generalized Schrieffer-Wolff transformation of multi-flavor Hubbard models
- Hybridizing localized and itinerant electrons: a recipe for pseudogaps
Cited by in corpus (8)
- Orbital differentiation in Hund metals
- In-gap band in the one-dimensional two-orbital Kanamori-Hubbard model with inter-orbital Coulomb interaction
- Orbital-selective bad metals due to Hund's rule and orbital anisotropy: a finite-temperature slave-spin treatment of the two-band Hubbard model
- Hund bands in spectra of multiorbital systems
- Novel subbands in the doped two-orbital Kanamori-Hubbard model
- Low-energy interband Kondo bound states in orbital-selective Mott phases
- Unconventional correlated metallic behavior due to interorbital Coulomb interaction
- Triplet pairing, orbital selectivity and correlations in Iron-based superconductors