Dynamical manipulation of Dirac points in the Kitaev honeycomb model
arXiv:1508.04598 · doi:10.1140/epjb/e2016-70265-5
Abstract
We study the effect of a half wave rectified sinusoidal electromagnetic (EM) wave on the Kitaev honeycomb model with an additional magneto-electric coupling term {arising due to induced polarization of the bonds. Within the framework of Floquet analysis, we show that merging of a pair of Dirac points in the gapless region of the Kitaev model leading to a semi-Dirac spectrum is indeed possible} by externally varying the amplitude and the phase of the EM field.
10 pages, 7 figures: Text modified and new figures added