Fractionalized Fermi liquid on the surface of a topological Kondo insulator

Abstract

We argue that topological Kondo insulators can also have 'intrinsic' topological order associated with fractionalized excitations on their surfaces. The hydridization between the local moments and conduction electrons can weaken near the surface, and this enables the local moments to form spin liquids. This co-exists with the conduction electron surface states, realizing a surface fractionalized Fermi liquid. We present mean-field solutions of a Kondo-Heisenberg model which display such surfaces.

18 pages, 4 figures

References in corpus (15)

• Quantum Spin Hall Effect and Topological Phase Transition in HgTe Quantum Wells
• Topological Insulators with Inversion Symmetry
• Weak magnetism and non-Fermi liquids near heavy-fermion critical points
• Fractionalized Fermi liquids
• Correlated Topological Insulators with Mixed Valence
• Topological Kondo Insulators
• On the $Z_2$ classification of Quantum Spin Hall Models
• Unconventional Fermi surface in an insulating state
• Hybridization, Inter-Ion Correlation, and Surface States in the Kondo Insulator SmB6
• Quantum oscillations without a Fermi surface and the anomalous de Haas-van Alphen effect
• Kondo Breakdown in Topological Kondo Insulators
• Surface Theory of a Family of Topological Kondo Insulators
• Multi-scale fluctuations near a Kondo Breakdown Quantum Critical Point
• Two-dimensional heavy fermions on the strongly correlated boundaries of Kondo topological insulators
• Many-Body Effects in Topological Kondo Insulators

Cited by in corpus (19)

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• Imaging emergent heavy Dirac fermions of a topological Kondo insulator
• The Anomalous de Haas-van Alphen Effect in InAs/GaSb quantum wells
• Bulk Fermi surface of charge-neutral excitations in SmB6 or not: a heat-transport study
• Consistency between ARPES and STM measurements on SmB${}_6$
• Quantum Oscillations from Fermi Sea
• Intrinsic bulk quantum oscillations in a bulk unconventional insulator SmB${}_6$
• Topological phase in $1D$ topological Kondo insulator: $Z_2$ topological insulator, Haldane-like phase and Kondo breakdown
• Mutual information, quantum phase transition, and phase coherence in Kondo systems
• Reduction of the low-temperature bulk gap in samarium hexaboride under high magnetic fields
• Ferromagnetism and glassiness on the surface of topological insulators
• Finite temperature physics of $1D$ topological Kondo insulator: Stable Haldane phase, Emergent energy scale and Beyond
• Topology and Magnetism in the Kondo Insulator Phase Diagram
• Kramers' doublet ground state in topological Kondo insulators
• Inexorable Edge Kondo Breakdown in Topological Kondo Insulators
• Magnetic effects on Chern Kondo insulator
• Understanding one-dimensional topological Kondo insulator: Poor man's non-uniform antiferromagnetic mean-field theory versus quantum Monte Carlo simulation
• 3D Topological Kondo Insulators