Anderson Impurity in Helical Metal

Abstract

We use a trial wave function to study the spin-1/2 Kondo effect of a helical metal on the surface of a three-dimensional topological insulator. While the impurity spin is quenched by conduction electrons, the spin-spin correlation of the conduction electron and impurity is strongly anisotropic in both spin and spatial spaces. As a result of strong spin-orbit coupling, the out-of-plane component of the impurity spin is found to be fully screened by the orbital angular momentum of the conduction electrons.

The published version

References in corpus (9)

• Superconducting proximity effect and Majorana fermions at the surface of a topological insulator
• Discovery (theoretical prediction and experimental observation) of a large-gap topological-insulator class with spin-polarized single-Dirac-cone on the surface
• A topological Dirac insulator in a quantum spin Hall phase : Experimental observation of first strong topological insulator
• First observation of Spin-Momentum Helical Locking in Bi2Se3 and Bi2Te3, demonstration of Topological-Order at 300K and a realization of topological-transport-regime
• Majorana Fermion Induced Resonant Andreev Reflection
• Manipulation of Majorana fermion, Andreev reflection and Josephson current on topological insulators
• Tuning Kondo physics in Graphene with gate voltage
• Magnetic Doping and Kondo Effect in Bi2Se3 Nanoribbons
• Scanning tunneling spectroscopy of a magnetic atom on graphene in the Kondo regime

Cited by in corpus (27)

• Topological insulators and superconductors
• The Physics of Kondo Impurities in Graphene
• Magnetic anisotropy effects on quantum impurities in superconducting host
• Quantum impurity on the surface of a topological insulator
• The Kondo effect in the presence of the Rashba spin-orbit interaction
• Spin connection and boundary states in a topological insulator
• A magnetic Impurity in a Weyl semimetal
• Competing topological and Kondo insulator phases on a honeycomb lattice
• Probing surface states of topological insulator: Kondo effect and Friedel oscillation under magnetic field
• Kondo effect in the presence of spin-orbit coupling
• Kondo Signatures of a Quantum Magnetic Impurity in Topological Superconductors
• Kondo Effect with Weyl Semimetal Fermi Arcs
• Surface phonon propagation in topological insulators
• Single magnetic impurities in the Kane-Mele model
• Tunable unconventional Kondo effect on topological insulator surfaces
• Suppression of the Kondo Resistivity Minimum in Magnetic Topological Insulators
• Quantum impurity in the bulk of topological insulator
• Single Magnetic Impurity in Tilted Dirac Surface States
• Magnetic Impurity Affected by Spin-Orbit Coupling: Behavior near a Topological Phase Transition
• Kondo screening by the surface modes of a strong topological insulator
• Kondo Spin Screening Cloud in Two-dimensional Electron Gas with Spin-orbit Couplings
• Electrical and thermoelectrical transport in Dirac fermions through a quantum dot
• Critical quasiparticles in single-impurity and lattice Kondo models
• Electrically tunable Kondo effect as a direct measurement of the chiral anomaly in disorder Weyl semimetals
• Spatial anisotropy of Kondo screening cloud in a type-II Weyl semimetal
• Tunable correlation effects of magnetic impurities by the cubic Rashba spin-orbit couplings
• Deformation of the Fermi Surface and Anomalous Mass Renormalization by Critical Spin Fluctuations through Asymmetric Spin-Orbit Interaction