Poor Man's Understanding of Kinks Originating from Strong Electronic Correlations

Abstract

By means of dynamical mean field theory calculations, it was recently discovered that kinks generically arise in strongly correlated systems, even in the absence of external bosonic degrees of freedoms such as phonons. However, the physical mechanism behind these kinks remained unclear. On the basis of the perturbative and numerical renormalization group theory, we herewith identify these kinks as the effective Kondo energy scale of the interacting lattice system which is shown to be smaller than the width of the central peak.

5 pages, 3 figures

References in corpus (14)

• The numerical renormalization group method for quantum impurity systems
• A universal high energy anomaly in angle resolved photoemission spectra of high temperature superconductors - possible evidence of spinon and holon branches
• Kinks in the dispersion of strongly correlated electrons
• High-energy kink in high-temperature superconductors
• Fermi surface evolution and Luttinger theorem in Na${}_x$CoO${}_2$: a systematic photoemission study
• The hierarchy of multiple many-body interaction scales in high-temperature superconductors
• Momentum-resolved spectral functions of SrVO${}_3$ calculated by LDA+DMFT
• "Waterfalls" phenomenon in superconducting cuprates
• "Waterfalls" in cuprates
• Fermi surfaces, electron-hole asymmetry and correlation kink in a three-dimensional Fermi liquid LaNiO${}_3$
• Emergent Collective Modes and Kinks in Electronic Dispersions
• Kinks in the electronic specific heat
• Emergence of a common energy scale close to the orbital-selective Mott transition
• Kinks in the periodic Anderson model

Cited by in corpus (33)

• Sachdev-Ye-Kitaev Models and Beyond: A Window into Non-Fermi Liquids
• High-resolution photoemission on Sr2RuO4 reveals correlation-enhanced effective spin-orbit coupling and dominantly local self-energies
• DMFT+NRG study of spin-orbital separation in a three-band Hund's metal
• Local magnetic moments in iron and nickel at ambient and Earth's core conditions
• Non-perturbative landscape of the Mott-Hubbard transition: Multiple divergence lines around the critical endpoint
• Ab initio dynamical vertex approximation
• Asymmetric band widening by screened exchange competing with local correlations in SrVO3: new surprises on an old compound from combined GW and dynamical mean field theory GW+DMFT
• Divergences of the irreducible vertex functions in correlated metallic systems: Insights from the Anderson Impurity Model
• Merging GW with DMFT and non-local correlations beyond
• Interplay between local response and vertex divergences in many-fermion systems with on-site attraction
• Self-consistent ladder D$\Gamma$A approach
• Is the orbital-selective Mott phase stable against interorbital hopping?
• On the separability of dynamical and non-local correlations in three dimensions
• Extremely correlated Fermi liquid theory meets Dynamical mean-field theory: Analytical insights into the doping-driven Mott transition
• Screened moments and absence of ferromagnetism in FeAl
• Electronic structure, cohesive properties and magnetism of SrRuO${}_3$; a theoretical investigation
• Towards ab initio calculations with the dynamical vertex approximation
• Kondo effect in a quantum wire with spin-orbit coupling
• Transport Through a Correlated Interface: Auxiliary Master Equation Approach
• Local magnetic moment formation and Kondo screening in the half filled two dimensional single band Hubbard model
• Momentum structure of the self-energy and its parametrization for the two-dimensional Hubbard model
• The AbinitioD$\Gamma$A Project v1.0: Non-local correlations beyond and susceptibilities within dynamical mean-field theory
• Origin of the kink in the band dispersion of the ferromagnetic perovskite SrRuO3: Electron-phonon coupling
• Resistivity Exponents in 3D-Dirac Semimetals From Electron-Electron Interaction
• Mott-Hubbard transition in the mass-imbalanced Hubbard model
• Fine structure of spectra in the antiferromagnetic phase of the Kondo lattice model
• Pitfalls and solutions for perovskite transparent conductors
• Distinct Nature of Orbital Selective Mott Phases Dominated by the Low-energy Local Spin Fluctuations
• Energy-scale cascade and correspondence between Mott and Kondo lattice physics
• Clean realization of the Hund physics near the Mott transition: $\mathrm{Ni}{\mathrm{S}}_2$ under pressure
• Dispersion kinks from electronic correlations in an unconventional iron-based superconductor
• Quantum Thermalization via Travelling Waves
• Kondo frustration via charge fluctuations: a route to Mott localisation