Skyrmion-induced anomalous Hall conductivity on topological insulator surfaces

Abstract

Electron spin-momentum locking together with background magnetic textures can significantly alter the electron transport properties. We theoretically investigate the electron transport at the interface between a topological insulator and a magnetic insulator with magnetic skyrmions on the top. In contrast to the conventional topological Hall effect in normal metals, the skyrmions yield an additional contribution to the anomalous Hall conductivity even in the absence of in-plane magnetic texture, arising from the phase factor characteristic to Dirac electrons acquired at skyrmion boundary.

10 pages, 4 figures; published version

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Cited by in corpus (12)

• Transport in two-dimensional topological materials: recent developments in experiment and theory
• Electronic chiralization as an indicator of the anomalous Hall effect in unconventional magnetic systems
• Magnetic skyrmion crystal at a topological insulator surface
• Twisted magnetic topological insulators
• Remarks on the Study of Electronic Properties and Photoionization Process in Rotating 2D Quantum Rings
• Resonant optical topological Hall conductivity from skyrmions
• Theory of Magnetic-Texture-Induced Anomalous Hall Effect on the Surface of Topological Insulators
• Transport in magnetically doped topological insulators: Effects of magnetic clusters
• Theory of an electron asymmetric scattering on skyrmion textures in two-dimensional systems
• Giant resonant skew scattering of plasma waves in a two-dimensional electron gas
• Scattering of Dirac electrons from a skyrmion: emergence of robust skew scattering
• Anomalous skew scattering of plasmons in a Dirac electron fluid