paper

Topological Surface States with Persistent High Spin Polarization across Dirac Point in Bi $_{2}$ Te $_{2}$ Se and Bi $_{2}$ Se $_{2}$ Te

arXiv:1203.4439 · doi:10.1103/PhysRevLett.109.166802

Abstract

Helical spin textures with the marked spin polarizations of topological surface states have been firstly unveiled by the state-of-the-art spin- and angle-resolved photoemission spectroscopy for two promising topological insulators Bi $_{2}$ Te $_{2}$ Se and Bi $_{2}$ Se $_{2}$ Te. The highly spin-polarized natures are found to be persistent across the Dirac point in both compounds. This novel finding paves a pathway to extending their utilization of topological surface state for future spintronic applications.

5 pages, 3 figures

Topological Surface States with Persistent High Spin Polarization across Dirac Point in Bi2​Te2​Se and Bi2​Se2​Te

Abstract

Topological Surface States with Persistent High Spin Polarization across Dirac Point in Bi $_{2}$ Te $_{2}$ Se and Bi $_{2}$ Se $_{2}$ Te