Enhanced photogalvanic effect in graphene due to Rashba spin-orbit coupling

Abstract

We analyze theoretically optical generation of a spin-polarized charge current (photogalvanic effect) and spin polarization in graphene with Rashba spin-orbit coupling. An external magnetic field is applied in the graphene plane, which plays a crucial role in the mechanism of current generation. We predict a highly efficient resonant-like photogalvanic effect in a narrow frequency range which is determined by the magnetic field. A relatively less efficient photogalvanic effect appears in a broader frequency range, determined by the electron concentration and spin-orbit coupling strength.

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Cited by in corpus (13)

• Giant magnetochiral anisotropy from quantum confined surface states of topological insulator nanowires
• Resonant photovoltaic effect in doped magnetic semiconductors
• Theory of current-induced spin polarizations in an electron gas
• Terahertz photogalvanics in twisted bilayer graphene close to the second magic angle
• Circular Photogalvanic Effect in Organometal Halide Perovskite CH${}_3$NH${}_3$PbI${}_3$
• Antiferromagnetic spin valve from heterostructure of two-dimensional hexagonal crystals
• Polarization-dependent photocurrents in polar stacks of van der Waals solids
• Intrinsic Contribution to Non-linear Thermoelectric Effect
• Spin structure factors of doped monolayer Germanene in the presence of spin-orbit coupling
• Spin-active devices based on graphene / WSe${}_2$ heterostructure
• The influence of anisotropic Rashba spin-orbit coupling on current-induced spin polarization in graphene
• Optical injection of a spin current into a zigzag nanoribbon of monolayer MoS2 with antiferromagnetic Kekule distortion
• Photogalvanic Effect in Silicene