Giant mesoscopic spin Hall effect on surface of topological insulator

Abstract

We study mesoscopic spin Hall effect on the surface of topological insulator with a step-function potential. The giant spin polarization induced by a transverse electric current is derived analytically by using McMillan method in the ballistic transport limit, which oscillates across the potential boundary with no confinement from the potential barrier due to the Klein paradox, and should be observable in spin resolved scanning tunneling microscope.

5 pages, 3 figures

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Cited by in corpus (7)

• Spintronics and Pseudospintronics in Graphene and Topological Insulators
• Transport in three-dimensional topological insulators: theory and experiment
• Reading charge transport from spin dynamics on the surface of topological insulator
• Anomalous spin precession and spin Hall effect in semiconductor quantum wells
• Spin Hall effect at interfaces between HgTe/CdTe quantum wells and metals
• Topological cutoff frequency in a slab waveguide: Penetration length in topological insulator walls
• Chiral Surface Modes in Three-Dimensional Topological Insulators