Translator Disclaimer
9 October 2012 Switching spin and charge between edge states in topological insulator constrictions: a transer matrix approach
Author Affiliations +
Proceedings Volume 8461, Spintronics V; 84610Z (2012) https://doi.org/10.1117/12.931306
Event: SPIE NanoScience + Engineering, 2012, San Diego, California, United States
Abstract
We show how the different spin polarized edge states of the two-dimensional topological insulator mercury telluride can be selectively switched within an elongated constriction. To this end, we derive an effective onedimensional Hamiltonian incorporating the confinement induced gap between right- and left-moving edge states, as well as an energy dependent effective spin-orbit interaction. By means of a transfer matrix approach, we study the transport properties based on this model Hamiltonian and reveal switching characteristics that can serve as the building block for a three state spin- and charge transistor based on a locally gated topological insulator constriction.
© (2012) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Viktor Krueckl and Klaus Richter "Switching spin and charge between edge states in topological insulator constrictions: a transer matrix approach", Proc. SPIE 8461, Spintronics V, 84610Z (9 October 2012); https://doi.org/10.1117/12.931306
PROCEEDINGS
11 PAGES


SHARE
Advertisement
Advertisement
Back to Top