Correlated Topological Insulators with Mixed Valence

Abstract

We propose the local density approximation (LDA)+Gutzwiller method incorporating Green's function scheme to study the topological physics of correlated materials from the first-principles. Applying this method to typical mixed valence materials SmB6, we found its non-trivial Z2 topology, indicating that SmB6 is a strongly correlated topological insulator (TI). The unique feature of this compound is that its surface states contain three Dirac cones in contrast to most known TIs.

5 pages, 5 figures

References in corpus (5)

• Quantum Spin Hall Effect and Topological Phase Transition in HgTe Quantum Wells
• Topological Insulators with Inversion Symmetry
• Simplified topological invariants for interacting insulators
• Rotationally-invariant slave-boson formalism and momentum dependence of the quasiparticle weight
• Construction of Wannier functions from localized atomic-like orbitals

Cited by in corpus (47)

• New classes of topological crystalline insulators with unpinned surface Dirac cones
• Direct observation of the spin texture in strongly correlated SmB6 as evidence of the topological Kondo insulator
• Kondo Breakdown in Topological Kondo Insulators
• Interaction Driven Subgap Spin Exciton in the Kondo Insulator SmB6
• Excitons in topological Kondo insulators - theory of thermodynamic and transport anomalies in SmB${}_6$
• Exploration and prediction of topological electronic materials based on first-principles calculations
• Additional energy scale in SmB${}_6$ at low temperature
• Interaction-induced quantum anomalous Hall phase in (111) bilayer of LaCoO${}_3$
• Anomalous 3D bulk AC conduction within the Kondo gap of SmB${}_6$ single crystals
• Surface Theory of a Family of Topological Kondo Insulators
• Exotic Kondo crossover in a wide temperature region in the topological Kondo insulator SmB6 revealed by high-resolution ARPES
• Non-Kondo-like Electronic Structure in the Correlated Rare-Earth Hexaboride YbB${}_6$
• Termination-dependent Surface In-gap States in a Mixed-valent Topological Insulator: SmB${}_6$
• Heavy surface state in a possible topological Kondo insulator: Magneto-thermoelectric transport on the (011)-plane of SmB${}_6$
• 4$f$ crystal field ground state of the strongly correlated topological insulator SmB${}_6$
• Composition-spread Growth and the Robust Topological Surface State of Kondo insulator SmB6 Thin Films
• Spin Injection and Inverse Edelstein Effect in the Surface States of Topological Kondo Insulator SmB6
• Heavy Weyl fermion state in CeRu${}_4$Sn${}_6$
• Angle-resolved Photoemission Spectroscopy Study on the Surface States of the Correlated Topological Insulator YbB6
• End states in a 1-D topological Kondo insulator
• Scanning tunneling spectroscopy and surface quasiparticle interference in models for the strongly correlated topological insulators SmB6 and PuB6
• In-gap collective mode spectrum of the Topological Kondo Insulator SmB6
• Two-dimensional heavy fermions on the strongly correlated boundaries of Kondo topological insulators
• Two distinct topological phases in the mixed valence compound YbB6 and its differences from SmB6
• Gutzwiller Density Functional Theory: a formal derivation and application to ferromagnetic nickel
• Model Hamiltonian for topological Kondo insulator SmB6
• A Strongly-Interacting Dirac Liquid on the Surface of a Topological Kondo Insulator
• Suppression of magnetic excitations near the surface of the topological Kondo insulator SmB6
• Topological invariants in interacting Quantum Spin Hall: a Cluster Perturbation Theory approach
• Kondo holes in topological Kondo insulators: Spectral properties and surface quasiparticle interference
• The Effects of Spin-Excitons on the Surface States of SmB6: A Photoemission Study
• Topological Phases in Oxide Heterostructures with Light and Heavy Transition Metal Ions
• Topological properties of the bond-modulated honeycomb lattice
• Bulk Rotational Symmetry Breaking in Kondo Insulator SmB6
• Spin- and angle-resolved photoemission on the topological Kondo Insulator candidate: SmB6
• ARPES insights on the metallic states of YbB6(001): E(k) dispersion, temporal changes and spatial variation
• Topological phase in a two-dimensional metallic heavy-fermion system
• Planar tunneling spectroscopy of the topological Kondo insulator SmB${}_6$
• Impact of the Rashba Spin Orbit Coupling on $f$-electron Materials
• Surface vs bulk electronic structures of a moderately correlated topological insulator YbB6 revealed by ARPES
• Probing the interplay between surface and bulk states in the topological Kondo insulator SmB${}_6$ through conductance fluctuation spectroscopy
• Irreversible proliferation of magnetic moments at cleaved surfaces of the topological Kondo insulator SmB6
• Optical conductivity of topological Kondo insulating states
• Exactly solvable 2D topological Kondo lattice model
• Exactly solvable model of topological insulator realized on spin-1/2 lattice
• Pressure-Driven Topological Phase Transition in the Yb Chalcogenides YbO and YbS
• Low temperature resistivity studies of SmB6: Observation of twodimensional variable-range hopping conductivity