2D Materials Forum (Apr 2017)

When:
07/04/2017 @ 11:00 AM – 11:00 AM
2017-04-07T11:00:00+08:00
2017-04-07T11:00:00+08:00

Speaker: 

Dr. Aleksandr Rodin

Date: 

Fri, 07/04/2017 – 11:00am

Location: 

S16 Level 6 – Theory conference room

Event Type: 

Seminars

Title:
Spin-Orbit Interaction in Buckled 2D Systems

Abstract:

Spin-orbit coupling in 2D materials can be either extrinsic or intrinsic. An example of the former is Rashba effect, where an external electric fields results in a formation of Dirac cones. Intrinsic SOC, on the other hand, typically leads to a gap opening, as seen in Xene’s and some transition metal dichalcogenides. It turns out that for certain lattice geometries, atomic spin-orbit interaction can give rise Rashba-like dispersion without an external field. We study a lattice which manifests this behaviour using tight-binding formalism and DFT calculations.