Physics – Condensed Matter – Mesoscale and Nanoscale Physics
Scientific paper
2010-12-06
Phys. Rev. Lett. 105, 266806 (2010)
Physics
Condensed Matter
Mesoscale and Nanoscale Physics
4+ pages, 3 figures
Scientific paper
10.1103/PhysRevLett.105.266806
We investigate the band dispersion and the spin texture of topologically protected surface states in the bulk topological insulators Bi2Se3 and Bi2Te3 by first-principles methods. Strong spin-orbit entanglement in these materials reduces the spin-polarization of the surface states to ~50% in both cases; this reduction is absent in simple models but of important implications to essentially any spintronic application. We propose a way of controlling the magnitude of spin polarization associated with a charge current in thin films of topological insulators by means of an external electric field. The proposed dual-gate device configuration provides new possibilities for electrical control of spin.
Louie Steven G.
Moore Joel E.
Yazyev Oleg V.
No associations
LandOfFree
Spin Polarization and Transport of Surface States in the Topological Insulators Bi2Se3 and Bi2Te3 from First Principles does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Spin Polarization and Transport of Surface States in the Topological Insulators Bi2Se3 and Bi2Te3 from First Principles, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spin Polarization and Transport of Surface States in the Topological Insulators Bi2Se3 and Bi2Te3 from First Principles will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-167276