Chiral Hall effect in the kink states in topological insulators with magnetic domain walls

Abstract

In this article we consider the chiral Hall effect due to topologically protected kink states formed in topological insulators at boundaries between domains with differing topological invariants. Such systems include the surfaces of three dimensional topological insulators magnetically doped or in proximity with ferromagnets, as well as certain two dimensional topological insulators. We analyze the equilibrium charge current along the domain wall and show that it is equal to the sum of counter-propagating equilibrium currents flowing along external boundaries of the domains. In addition, we also calculate a dissipative current along the domain wall when an external voltage is applied perpendicularly to the wall.

6 pages, 4 figures

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Cited by in corpus (6)

• Quantum Spin-Valley Hall Kink States: From Concept to Materials Design
• Spectral features of magnetic domain walls on surface of 3D topological insulators
• Graphene with Rashba spin-orbit interaction and coupling to a magnetic layer: Electron states localized at the domain wall
• Chiral edge transport along domain walls in magnetic topological insulator nanoribbons
• Magnetic-flux tunable electronic transport through domain walls in a three-dimensional second-order topological insulator
• Chiral electronic network within skyrmionic lattice on topological insulator surfaces