Rashba spin-splitting control at the surface of the topological insulator Bi2Se3

Details Rashba spin-splitting control at the surface of the topological insulator Bi2Se3 Rashba spin-splitting control at the surface of the topological insulator Bi2Se3

2011-06-03

arxiv.org/abs/1106.0552v1

Phys. Rev. Lett. 107, 186405 (2011)

Physics

Condensed Matter

Strongly Correlated Electrons

A high-resolution version can be found at http://www.physics.ubc.ca/~quantmat/ARPES/PUBLICATIONS/Articles/BiSe_K.pdf

Scientific paper

The electronic structure of Bi2Se3 is studied by angle-resolved photoemission and density functional theory. We show that the instability of the surface electronic properties, observed even in ultra-high-vacuum conditions, can be overcome via in-situ potassium deposition. In addition to accurately setting the carrier concentration, new Rashba-like spin-polarized states are induced, with a tunable, reversible, and highly stable spin splitting. Ab-initio slab calculations reveal that these Rashba state are derived from the 5QL quantum-well states. While the K-induced potential gradient enhances the spin splitting, this might be already present for pristine surfaces due to the symmetry breaking of the vacuum-solid interface.

Affiliated with

Also associated with

No associations

Rating

Rashba spin-splitting control at the surface of the topological insulator Bi2Se3 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 Rashba spin-splitting control at the surface of the topological insulator Bi2Se3, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rashba spin-splitting control at the surface of the topological insulator Bi2Se3 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-223070