Enhanced photogalvanic effect in graphene due to Rashba spin-orbit coupling
arXiv:1502.05683 · doi:10.1103/PhysRevB.91.195428
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.
References in corpus (11)
- Graphene Spintronics
- Spin qubits in graphene quantum dots
- Universal dynamical conductance in graphite
- Proximity-induced ferromagnetism in graphene revealed by anomalous Hall effect
- Quantum Anomalous Hall Effect in Graphene Proximity Coupled to an Antiferromagnetic Insulator
- Current induced electron spin polarization in strained semiconductors
- Orbital mechanisms of electron spin manipulation by an electric field
- Spintronics with graphene
- Magneto-gyrotropic effects in semiconductor quantum wells (review)
- Optical spin injection in graphene with Rashba spin-orbit interaction
- Photoinduced pure spin current injection in graphene with Rashba spin-orbit interaction