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

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• Momentum-Dependent Hybridization Gap and dispersive in-gap state of The Kondo Semiconductor SmB6
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• Photoexcited electron dynamics in Kondo insulators and heavy fermions
• Charge Fluctuations and the Valence Transition in Yb under Pressure
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Cited by in corpus (224)

• Topological Insulator Materials
• Colloquium: Topological Band Theory
• Observation of a topological 3D Dirac semimetal phase in high-mobility Cd3As2
• Catalogue of Topological Electronic Materials
• High-throughput calculations of magnetic topological materials
• Surface electronic structure of the topological Kondo insulator candidate correlated electron system SmB6
• Low-temperature surface conduction in the Kondo insulator SmB${}_6$
• Topological surface state in the Kondo Insulator Samarium Hexaboride
• Quantum oscillations in Kondo Insulator SmB${}_6$
• Topological quantum matter with cold atoms
• Robust Surface Hall Effect and Nonlocal Transport in SmB6: Indication for an Ideal Topological Insulator
• Topological Kondo Insulators
• Observation of in-gap surface states in the Kondo insulator SmB6 by photoemission
• MATBG as Topological Heavy Fermion: I. Exact Mapping and Correlated Insulators
• 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
• Quantum Materials for Spin and Charge Conversion
• Surface and Bulk Electronic Structure of the Strongly Correlated System SmB${}_6$ and Implications for a Topological Kondo Insulator
• Cubic Topological Kondo Insulators
• Topological Crystalline Kondo Insulator in Mixed Valence Ytterbium Borides
• Polarity-driven surface metallicity in SmB${}_6$
• Kondo Breakdown in Topological Kondo Insulators
• Quantum oscillation in narrow-gap topological insulators
• Field-induced resistivity plateau and unsaturated negative magnetoresistance in topological semimetal TaSb2
• Kondo Breakdown and Quantum Oscillations in SmB${}_6$
• Emergence of a coherent in-gap state in SmB6 Kondo insulator revealed by scanning tunneling spectroscopy
• Dimerization-Induced Cross-Layer Quasi-Two-Dimensionality in Metallic Iridate IrTe2
• Topological Insulators with Commensurate Antiferromagnetism
• Gigantic surface life-time of an intrinsic topological insulator revealed via time-resolved (pump-probe) ARPES
• Interaction Driven Subgap Spin Exciton in the Kondo Insulator SmB6
• Excitons in topological Kondo insulators - theory of thermodynamic and transport anomalies in SmB${}_6$
• Mixed-valence insulators with neutral Fermi surfaces
• Samarium hexaboride: A trivial surface conductor
• Exploration and prediction of topological electronic materials based on first-principles calculations
• Plutonium hexaboride is a correlated topological insulator
• Kondo hybridisation and the origin of metallic states at the (001) surface of SmB6
• Emergence of supersymmetric quantum electrodynamics
• Additional energy scale in SmB${}_6$ at low temperature
• The importance of Charge Fluctuations for the Topological Phase in SmB${}_6$
• Imaging emergent heavy Dirac fermions of a topological Kondo insulator
• Topological invariants, surface states, and interaction-driven phase transitions in correlated Kondo insulators with cubic symmetry
• Interaction-induced quantum anomalous Hall phase in (111) bilayer of LaCoO${}_3$
• Weak Antilocalization and Linear Magnetoresistance in The Surface State of SmB6
• Anomalous 3D bulk AC conduction within the Kondo gap of SmB${}_6$ single crystals
• Surface Theory of a Family of Topological Kondo Insulators
• Non-Kondo-like Electronic Structure in the Correlated Rare-Earth Hexaboride YbB${}_6$
• Exotic Kondo crossover in a wide temperature region in the topological Kondo insulator SmB6 revealed by high-resolution ARPES
• Chemical potential asymmetry and quantum oscillations in insulators
• Termination-dependent Surface In-gap States in a Mixed-valent Topological Insulator: SmB${}_6$
• Edge states reconstruction from strong correlations in quantum spin Hall insulators
• Heavy surface state in a possible topological Kondo insulator: Magneto-thermoelectric transport on the (011)-plane of SmB${}_6$
• SmB6 Photoemission: Past and Present
• Topological surface states interacting with bulk excitations in the Kondo insulator SmB${}_6$ revealed via planar tunneling spectroscopy
• 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
• Magnetotransport Measurements of the Surface States of Samarium Hexaboride using Corbino Structures
• Fermi Surface Topology and Hotspots Distribution in Kondo Lattice System CeB6
• Coexistence of light and heavy surface states in a topological multi-band Kondo insulator
• Strong Correlation Effects on Topological Quantum Phase Transitions in Three Dimensions
• Hysteretic Magnetotransport in SmB6 at Low Magnetic Fields
• Magnetic Order Driven Topological Transition in the Haldane-Hubbard Model
• Spin Injection and Inverse Edelstein Effect in the Surface States of Topological Kondo Insulator SmB6
• CeRu${}_4$Sn${}_6$: a strongly correlated material with nontrivial topology
• Surface-state spin textures and mirror Chern numbers in topological Kondo insulators
• Magnetic and defect probes of the SmB${}_6$ surface state
• Heavy Weyl fermion state in CeRu${}_4$Sn${}_6$
• Breakdown of the Kondo insulating state in SmB6 by introducing Sm vacancies
• Band symmetries of mixed-valence topological insulator: SmB6
• Pressure-resistant intermediate valence in Kondo insulator SmB6
• Bulk Fermi surface of charge-neutral excitations in SmB6 or not: a heat-transport study
• Gutzwiller Hybrid Quantum-Classical Computing Approach for Correlated Materials
• Electronic structure of YbB${}_6$: Is it a Topological Insulator or not?
• Kondo Phase in Twisted Bilayer Graphene -- A Unified Theory for Distinct Experiments
• Angle-resolved Photoemission Spectroscopy Study on the Surface States of the Correlated Topological Insulator YbB6
• Pressure-induced quantum phase transitions in topological insulator YbB6
• End states in a 1-D topological Kondo insulator
• Magnetic mixed valent semimetal EuZnSb${}_2$ with Dirac states in the band structure
• Bulk and surface electronic properties of SmB6: a hard x-ray photoelectron spectroscopy study
• Quantum oscillations in strongly correlated topological Kondo insulators
• TBG as Topological Heavy Fermion: II. Analytical approximations of the model parameters
• Evolving Devil's staircase magnetization from tunable charge density waves in nonsymmorphic Dirac semimetals
• Scanning tunneling spectroscopy and surface quasiparticle interference in models for the strongly correlated topological insulators SmB6 and PuB6
• Topological invariants for interacting topological insulators: II. Breakdown of the Green's function formalism
• Dynamically generated edge states in topological Kondo insulators
• Distinct topological crystalline phases in models for the strongly correlated topological insulator SmB6
• Self-consistent GW method: O(N) algorithm for polarizability and self energy
• Racah materials: role of atomic multiplets in intermediate valence systems
• Consistency between ARPES and STM measurements on SmB${}_6$
• Correlation effects on topological crystalline insulators
• A new exotic state in an old material: A tale of Samarium Hexaboride
• Tailoring the electronic texture of a topological insulator via its surface orientation
• Surface and electronic structure of SmB${}_6$ through Scanning Tunneling Microscopy
• Fate of Majorana modes in ${\mathrm{CeCoIn}}_5$/${\mathrm{YbCoIn}}_5$ superlattices -a test bed for reduction of topological classification-
• Observation of a well-defined hybridization gap and in-gap states on the SmB6 (001) surface
• Towards the manipulation of topological states of matter: A perspective from electron transport
• Hybridization gap formation in the Kondo insulator YbB${}_{12}$ observed using time-resolved photoemission spectroscopy
• In-gap collective mode spectrum of the Topological Kondo Insulator SmB6
• Coexistence of metallic edge states and anti-ferromagnetic ordering in correlated topological insulators
• Incomplete Protection of the Surface Weyl Cones of the Kondo Insulator SmB${}_6$: Spin Exciton Scattering
• Observation of the superconducting proximity effect in the surface state of SmB6 thin films
• 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
• Parity-violating hybridization in heavy Weyl semimetals
• Topological invariants for interacting topological insulators: I. Efficient numerical evaluation scheme and implementations
• Gutzwiller Density Functional Theory: a formal derivation and application to ferromagnetic nickel
• Experimental and theoretical study of the correlated compound YbCdSn: Evidence for large magnetoresistance and mass enhancement
• Topological Invariants and Ground-State Wave Functions of Topological Insulators on a Torus
• Magnetic states in a three-dimensional topological Kondo insulator
• Fractionalized Fermi liquid on the surface of a topological Kondo insulator
• Model Hamiltonian for topological Kondo insulator SmB6
• Comparative study of rare earth hexaborides using high resolution angle-resolved photoemission
• Chemical and valence reconstruction at the surface of SmB6 revealed with resonant soft x-ray reflectometry
• Comparative study of adaptive variational quantum eigensolvers for multi-orbital impurity models
• 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
• Critical role of magnetic moments in heavy-fermion materials: revisiting mysteries of SmB${}_6$
• Definitive Surface Magnetotransport Study of SmB${}_6$
• 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
• Crossover of Magnetoresistance from Fourfold to Twofold Symmetry in SmB6 Single Crystal, a topological Kondo insulator
• Topological Phase Transition in an Archetypal f-electron Correlated System: Ce
• Hall anomaly, Quantum Oscillations and Possible Lifshitz Transitions in Kondo Insulator YbB${}_{12}$: Evidence for Unconventional Charge Transport
• Spin textures on general surfaces of the correlated topological insulator SmB6
• Bulk Rotational Symmetry Breaking in Kondo Insulator SmB6
• Topological Phases in Oxide Heterostructures with Light and Heavy Transition Metal Ions
• Topological properties of the bond-modulated honeycomb lattice
• Finite-Temperature Gutzwiller Approximation from Time-Dependent Variational Principle
• Spin- and angle-resolved photoemission on the topological Kondo Insulator candidate: SmB6
• Topological phase in a two-dimensional metallic heavy-fermion system
• ARPES insights on the metallic states of YbB6(001): E(k) dispersion, temporal changes and spatial variation
• Diamagnetic Sm${}^{3+}$ in the topological Kondo insulator SmB${}_6$
• Robust Surface States indicated by Magnetotransport in SmB6 Thin Films
• Exciton condensation in strongly correlated quantum spin Hall insulators
• Anomalous Hall Effect on the surface of topological Kondo insulators
• The anomalous antiferromagnetic topological phase in pressurized SmB6
• Z${}_2$ nontrivial topology of rare-earth binary oxide superconductor
• Chern Kondo Insulator in an Optical Lattice
• Planar tunneling spectroscopy of the topological Kondo insulator SmB${}_6$
• Topology of SmB${}_6$ determined by dynamical mean field theory
• SmB${}_6$: Topological insulator or semiconductor with valence-fluctuation induced hopping transport?
• Operatorial formulation of the ghost rotationally-invariant slave-Boson theory
• A RIXS investigation of the crystal-field splitting of Sm${}^{3+}$ in SmB${}_6$
• Reduction of the low-temperature bulk gap in samarium hexaboride under high magnetic fields
• Puzzle maker in SmB6: accompany-type valence fluctuation state
• Impact of the Rashba Spin Orbit Coupling on $f$-electron Materials
• Correlation Driven Topological Insulator-to-Weyl Semimetal Transition in Actinide System UNiSn
• Understanding low-temperature bulk transport in samarium hexaboride without relying on in-gap bulk states
• Evidence of electronic phase separation in the strongly correlated semiconductor YbB12
• Magnetoresistance and Kondo effect in the nodal-line semimetal VAs${}_2$
• Ultrafast terahertz spectroscopy study of Kondo insulating thin film SmB${}_6$: evidence for an emergent surface state
• Interacting weak topological insulators and their transition to Dirac semimetal phases
• QCD Kondo excitons
• Impurities or a neutral Fermi surface? A further examination of the low-energy ac optical conductivity of SmB${}_6$
• Ab initio study of nontrivial topological phases in corundum structured $($M${}_2$O${}_3)/($Al${}_2$O${}_3{)}_5$ multilayers
• Multiple insulating phases due to the interplay of strong correlations and lattice geometry in a single-orbital Hubbard model
• Universal properties of the near-gap spectra of SmB6: dynamical mean-field calculations and photoemission experiments
• Robust surface states and coherence phenomena in magnetically alloyed SmB6
• Topology and Magnetism in the Kondo Insulator Phase Diagram
• Correlated Topological Mixed-Valence Insulators in Moiré Hetero-Bilayers
• Electrical properties of SmB${}_6$ thin films prepared by pulsed laser deposition from a stoichiometric SmB${}_6$ target
• Crystal field potential and short-range order effects in inelastic neutron scattering, magnetization and heat capacity of the cage-glass compound HoB12
• Non-universal weak antilocalization effect in cubic topological Kondo insulators
• Itinerant to relocalized transition of f electrons in the Kondo insulator CeRu4Sn6
• Synthetic topological Kondo insulator in a pumped optical cavity
• 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
• Many-body breakdown of indirect gap in topological Kondo insulators
• Cross-over behavior of the localized to itinerant transition of 5f electrons in the antiferromagnetic Kondo lattice USb2
• Optical conductivity of topological Kondo insulating states
• Surface vs bulk electronic structures of a moderately correlated topological insulator YbB6 revealed by ARPES
• Interplay between spin-orbit coupling and crystal-field effect in topological insulators
• Exactly solvable model of topological insulator realized on spin-1/2 lattice
• Pseudo-Spin, Real-Spin and Spin Polarization of Photo-emitted Electrons
• Vortex states in a non-Abelian magnetic field
• Topological nature of the Kondo insulator SmB${}_6$ and its sensitiveness to Sm vacancy
• An STM perspective on hexaborides: Surface states of the Kondo insulator SmB${}_6$
• ${\mathcal{Z}}_2$ classification for a novel antiferromagnetic topological insulating phase in three-dimensional topological Kondo insulator
• Comparative Scanning Tunneling Microscopy Study on Hexaborides
• Pressure-Driven Topological Phase Transition in the Yb Chalcogenides YbO and YbS
• Exactly solvable 2D topological Kondo lattice model
• An emerging global picture of heavy fermion physics
• Hard and soft x-ray photoemission spectroscopy study of the new Kondo system SmO thin film
• Realizing a topological diode effect on the surface of a topological Kondo insulator
• Quantum phase transition and destruction of Kondo effect in pressurized SmB6
• Surface reconstruction in a tight-binding model for the topological Kondo insulator SmB6
• Exceptional Heavy-Fermion Semimetals in Three Dimensions
• Topological properties of magnetically ordered heavy-fermion systems in the presence of mirror symmetry
• Low temperature resistivity studies of SmB6: Observation of twodimensional variable-range hopping conductivity
• Hybridization effect on the X-ray absorption spectra for actinide materials: Application to PuB${}_4$
• Topology of SmB6 revisited by means of topological quantum chemistry
• Direct observation of surface state thermal oscillation in SmB6 oscillators
• Topological surface states in the Kondo insulator YbB${}_{12}$ revealed via planar tunneling spectroscopy
• Ce 3$p$ hard x-ray photoelectron spectroscopy study of the topological Kondo insulator CeRu${}_4$Sn${}_6$
• Cotunneling into a Kondo lattice with odd hybridization
• Phase stability in SmB${}_6$
• Kondo-induced hybrid topological insulator in two-dimensional electron system with a quadratic band crossing point
• Magnetic effects on Chern Kondo insulator
• Correlation Induced Magnetic Topological Phases in Mixed-Valence Compound SmB6
• Persistence of correlation-driven surface states in SmB6 under pressure
• Mapping out the emergence of topological features in the highly alloyed topological Kondo insulators Sm${}_{1-x}{M}_x$B${}_6$ ($M$=Eu, Ce)
• Tunable zero-energy Dirac and Luttinger nodes in a two-dimensional topological superconductor
• Correlated electrons in a Crystalline Topological insulator
• Band structure picture for topology in strongly correlated systems with the ghost Gutzwiller ansatz
• Valence transition in topological Kondo insulator
• SmB6: A material with anomalous energy distribution function of charge carriers?
• Protracted Kondo coherence with dilute carrier density in Cerium based nickel pnictides
• f-electron charge densities probed using core level non-resonant inelastic x-ray scattering
• An experimental algorithm for identifying the topological nature of Kondo and mixed valence insulators
• Phase transitions of correlated systems from graph neural networks with quantum embedding techniques
• The role of the short range magnetic correlations on the gap opening of the topological Kondo insulators
• Topological phase transition based on the attractive Hubbard model
• Effect of valence fluctuations on the ground state properties of SmB6
• Flat Topological Nodal Lines in Heavy-Fermion Compound CeCoGe${}_3$
• Spectral properties of strongly correlated multi impurity models in the Kondo insulator regime: Emergent coherence, metallic surface states and quantum phase transitions
• Topological phase transition driven by Hatsugai-Kohmoto interaction on the Kagome lattice
• Electronic correlations and topology in Kondo insulator PuB${}_6$
• Symmetry-protected topological polarons
• Reflection-Symmetry Protected Antiferromagnetic Topological Insulator in Three-Dimensional Heavy-Fermion Systems
• Emergence of spin-orbit coupled ferromagnetic surface state derived from Zak phase in a nonmagnetic insulator FeSi
• Colossal magnetoresistance in topological Kondo insulator
• Anisotropic Surface State Band Splitting and Low Energy Flat Bands in 3d Correlated Topological Kondo Insulator Candidate FeSb${}_2$
• Evolution of topological end states in the one-dimensional Kondo-Heisenberg model with site modulation
• Efficient slave-boson approach for multiorbital two-particle response functions and superconductivity