Spin injection and helicity control of surface spin photocurrent in a three dimensional topological insulator

Surface spin current in a 3D topological insulator (TI) remains difficult to control and the out-of-plane spin texture is largely unexplored. Here, the authors identify subtle effect of the spin texture on surface photocurrent and demonstrate controlled spin injection from a semiconductor to a TI.

Bibliographic Details
Main Authors: Y. Q. Huang, Y. X. Song, S. M. Wang, I. A. Buyanova, W. M. Chen
Format: Article
Language:English
Published: Nature Portfolio 2017-05-01
Series:Nature Communications
Online Access:https://doi.org/10.1038/ncomms15401