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Photovoltaic Berry curvature in the honeycomb lattice

Authors
  • Oka, Takashi
  • Aoki, Hideo
Type
Published Article
Publication Date
Nov 04, 2009
Submission Date
May 26, 2009
Identifiers
DOI: 10.1088/1742-6596/200/6/062017
Source
arXiv
License
Yellow
External links

Abstract

Photovoltaic Hall effect -- the Hall effect induced by intense, circularly-polarized light in the absence of static magnetic fields -- has been proposed in Phys. Rev. B 79, 081406R (2009) for graphene where a massless Dirac dispersion is realized. The photovoltaic Berry curvature (a nonequilibrium extension of the standard Berry curvature) is the key quantity to understand this effect, which appears in the Kubo formula extended to Hall transport in the presence of strong AC field backgrounds. Here we elaborate the properties of the photovoltaic curvature such as the frequency and field strength dependence in the honeycomb lattice.

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