Effects of periodic kicking on dispersion and wave packet dynamics in graphene

Agarwala, Adhip and Bhattacharya, Utso and Dutta, Amit and Sen, Diptiman (2016) Effects of periodic kicking on dispersion and wave packet dynamics in graphene. In: PHYSICAL REVIEW B, 93 (17).

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Abstract

We study the effects of delta-function periodic kicks on the Floquet energy-momentum dispersion in graphene. We find that a rich variety of dispersions can appear depending on the parameters of the kicking: at certain points in the Brillouin zone, the dispersion can become linear but anisotropic, linear in one direction and quadratic in the perpendicular direction, gapped with a quadratic dispersion, or completely flat (called dynamical localization). We show all these results analytically and demonstrate them numerically through the dynamics of wave packets propagating in graphene. We propose experimental methods for producing these effects.

Item Type:	Journal Article
Publication:	PHYSICAL REVIEW B
Publisher:	AMER PHYSICAL SOC
Additional Information:	Copy right for this article belongs to the AMER PHYSICAL SOC, ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
Department/Centre:	Division of Physical & Mathematical Sciences > Centre for High Energy Physics Division of Physical & Mathematical Sciences > Physics
Date Deposited:	10 Jun 2016 07:10
Last Modified:	10 Jun 2016 07:10
URI:	http://eprints.iisc.ac.in/id/eprint/53874

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