Aharonov-Bohm oscillations in the local density of topological surface states

Abstract

We study Aharonov-Bohm (AB) oscillations in the local density of states (LDOS) for topological insulator (TI) and conventional metal Au(111) surfaces with spin-orbit interaction, which can be probed by spin-polarized scanning tunneling microscopy. We show that the spacial AB oscillatory period in the total LDOS is a flux quantum ${\Phi }_0=hc/e$ (weak localization) in both systems. Remarkably, an analogous weak antilocalization with ${\Phi }_0/2$ periodic spacial AB oscillations in spin components of LDOS for TI surface is observed, while it is absent in Au(111).

4 APL pages, 3 figures

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Cited by in corpus (4)

• Spin-helical transport in normal and superconducting topological insulators
• Anisotropic Fabry-Pérot resonant states confined within nano-steps on the topological insulator surface
• Theory of multiple magnetic scattering for quasiparticles on a gapless topological insulator surface
• Probing crossover from analogous weak antilocalization to localization by an Aharonov-Bohm interferometer on topological insulator surface