Photovoltaic Hall effect in two-dimensional electron gas: Kinetic theory

Abstract

We study theoretically transverse photoconductivity induced by circularly polarized radiation, i.e. the photovoltaic Hall effect, and linearly polarized radiation causing intraband optical transitions in two-dimensional electron gas (2DEG). We develop a microscopic theory of these effects based on analytical solution of the Boltzmann equation for arbitrary electron spectrum and scattering mechanism. We calculate the transverse photoconductivity of 2DEG with parabolic and linear dispersion for short-range and Coulomb scatterers at different temperatures. We show that the transverse electric current is significantly enhanced at frequencies comparable to the inverse energy relaxation time, whereas at higher frequencies the excitation spectrum and the direction of current depend on the scattering mechanism. We also analyse the effect of thermalization processes caused by electron-electron collisions on the photoconductivity.

8 pages, 4 figures

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• Photovoltaic Hall effect in graphene
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Cited by in corpus (8)

• Light-induced charge and spin Hall currents in materials with $C_{4}K$ symmetry
• Photoinduced Anomalous Supercurrent Hall Effect
• THz radiation induced circular Hall effect in graphene
• THz ratchet effect in HgTe interdigitated structures
• Proposal for Superconducting Photodiode
• Faraday and Kerr rotation due to photoinduced orbital magnetization in two-dimensional electron gas
• Ratchet Hall Effect in Fluctuating Superconductors
• Unified theory of the photovoltaic Hall effect by field- and light-induced Berry curvatures