Ontology highlight
ABSTRACT:
SUBMITTER: Huang YQ
PROVIDER: S-EPMC7327057 | biostudies-literature | 2020 Jun
REPOSITORIES: biostudies-literature
Scientific reports 20200630 1
We theoretically study helicity-dependent photocurrent in a three-dimensional topological insulator Bi<sub>2</sub>Te<sub>3</sub> under elastic scattering of different symmetries. By exploring spin-selective optical transitions and symmetry-breaking scattering, we are able to address the out-of-plane spin texture of the topological helical surface states and to generate directional, spin-polarization tunable photocurrent that is otherwise forbidden for the original C<sub>3v</sub> symmetry of the ...[more]