Transmission of topological surface states through surface barriers

Abstract

Topological surface states are a class of novel electronic states that are of potential interest in quantum computing or spintronic applications. Unlike conventional two-dimensional electron states, these surface states are expected to be immune to localization and to overcome barriers caused by material imperfection. Previous experiments have demonstrated that topological surface states do not backscatter between equal and opposite momentum states, owing to their chiral spin texture. However, so far there is no evidence that these states in fact transmit through naturally occurring surface defects. Here we use a scanning tunnelling microscope to measure the transmission and reflection probabilities of topological surface states of antimony through naturally occurring crystalline steps separating atomic terraces. In contrast to nontopological surface states of common metals (copper, silver and gold), which are either reflected or absorbed by atomic steps, we show that topological surface states of antimony penetrate such barriers with high probability. This demonstration of the extended nature of antimony's topological surface states suggests that such states may be useful for high current transmission even in the presence of atomic scale irregularities-an electronic feature sought to efficiently interconnect nanoscale devices.

References in corpus (17)

• Quantum Spin Hall Effect and Topological Phase Transition in HgTe Quantum Wells
• $Z_2$ Topological Order and the Quantum Spin Hall Effect
• Quantum Spin Hall Insulator State in HgTe Quantum Wells
• Topological Insulators in Three Dimensions
• A topological Dirac insulator in a quantum spin Hall phase : Experimental observation of first strong topological insulator
• Topological invariants of time-reversal-invariant band structures
• First direct observation of Spin-textures in Topological Insulators : Spin-resolved ARPES as a probe of topological quantum spin Hall effect and Berry's phase
• Topological Surface States Protected From Backscattering by Chiral Spin Texture
• Experimental demonstration of the topological surface states protected by the time-reversal symmetry
• STM imaging of electronic waves on the surface of Bi${}_2$Te${}_3$: topologically protected surface states and hexagonal warping effects
• On the $Z_2$ classification of Quantum Spin Hall Models
• Theory of Quantum Corrals and Quantum Mirages
• Quasiparticle scattering in two dimensional helical liquid
• Theory of quasiparticle interference on the surface of a strong topological insulator
• Scattering from Surface Step Edges in Strong Topological Insulators
• Quantum Imaging of Topologically Unpaired Spin-Polarized Dirac Fermions
• Growth dynamics and thickness-dependent electronic structure of topological insulator Bi2Te3 thin films on Si

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