Predicted DC current induced by propagating wave in gapless Dirac materials
Mesoscale and Nanoscale Physics
2026-04-08 v1
Abstract
In this paper, we show that the application of propagating waves can induce a DC current even in systems with spatial inversion symmetry. We derive the equation for the DC current induced by propagating waves using two methods: perturbation theory and Floquet theory. These two approaches yield consistent results. We then apply the equation to gapless graphene subjected to propagating waves. A nonzero DC current is predicted in graphene with next nearest neighbor hopping terms. Nonperturbative effects arising from a strong wave amplitude are also discussed within the framework of Floquet theory.
Keywords
Cite
@article{arxiv.2604.05708,
title = {Predicted DC current induced by propagating wave in gapless Dirac materials},
author = {Keisuke Kitayama and Masao Ogata},
journal= {arXiv preprint arXiv:2604.05708},
year = {2026}
}