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arXiv · 2604.05708

Predicted DC current induced by propagating wave in gapless Dirac materials

Keisuke Kitayama·Masao Ogata
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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.

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Keisuke Kitayama, Masao Ogata. 2026-04-07. Predicted DC current induced by propagating wave in gapless Dirac materials. https://arxiv.org/abs/2604.05708

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