Drift-Diffusion Approach to Spin-Polarized Transport
arXiv:cond-mat/0311633 · doi:10.1016/j.physe.2004.03.007
Abstract
We develop a drift-diffusion equation that describes electron spin polarization density in two-dimensional electron systems. In our approach, superpositions of spin-up and spin-down states are taken into account, what distinguishes our model from the traditional two-component drift-diffusion approximation. The Dresselhaus and Rashba spin-orbit coupling mechanisms are incorporated into consideration, as well as an applied electric field. The derived equation is applied to the modelling of relaxation of homogeneous spin polarization. Our results are consistent with previous studies.
References in corpus (17)
- Non-ballistic spin field-effect transistor
- Spin-polarized transport in inhomogeneous magnetic semiconductors: theory of magnetic/nonmagnetic p-n junctions
- Diffuse transport and spin accumulation in a Rashba two-dimensional electron gas
- Spin diffusion and injection in semiconductor structures: Electric field effects
- Anisotropic transport in the two-dimensional electron gas in the presence of spin-orbit coupling
- Electric-field dependent spin diffusion and spin injection into semiconductors
- Waveguide diffusion modes and slowdown of D'yakonov-Perel' spin relaxation in narrow 2-D semiconductor channels
- Transport equations for a two-dimensional electron gas with spin-orbit interaction
- Semiclassical Monte Carlo Model for In-Plane Transport of Spin-Polarized Electrons in III-V Heterostructures
- Spin diffusion at finite electric and magnetic fields
- Focusing of Spin Polarization in Semiconductors by Inhomogeneous Doping
- Electron Spin Relaxation in a Semiconductor Quantum Well
- Spin-drift transport and its applications
- Slow Spin Relaxation in Two-Dimensional Electron Systems with Antidots
- Spin Relaxation of Conduction Electrons in Semiconductors Due to Interaction with Nuclear Spins
- Spin transport in inhomogeneous magnetic fields: a proposal for Stern-Gerlach-like experiments with conduction electrons
- Monte Carlo Simulation of Spin-Polarized Transport
Cited by in corpus (19)
- Semiconductor Spintronics
- Coherent wave-packet evolution in coupled bands
- Drift-diffusion model for spin-polarized transport in a non-degenerate 2DEG controlled by a spin-orbit interaction
- Datta-Das type spin-field effect transistor in non-ballistic regime
- Modulation of spin dynamics in a channel of a non-ballistic spin field effect transistor
- Modeling for Semiconductor Spintronics
- Electric generation of spin in crystals with reduced symmetry
- Spin polarization in biased Rashba-Dresselhaus two-dimensional electron systems
- Spin diffusion in Si/SiGe quantum wells: spin relaxation in the absence of D'yakonov-Perel' relaxation mechanism
- Spin characterization and control over the regime of radiation-induced zero-resistance states
- Optically-Induced Suppression of Spin Relaxation in Two-Dimensional Electron Systems with Rashba Interaction
- Radial Spin Helix in Two-Dimensional Electron Systems with Rashba Spin-Orbit Coupling
- Dynamics of Spin Relaxation near the Edge of Two-Dimensional Electron Gas
- The inequality of charge and spin diffusion coefficients
- Kinetics of Spin Relaxation in Wires and Channels: Boundary Spin Echo and Tachyons
- Decay of Persistent Spin Helix due to the Spin Relaxation at Boundaries
- Spin relaxation in Rashba rings
- Dynamics of Spin Relaxation in Finite-Size 2D Systems: an Exact Solution
- Periodic structure of spin-transfer current in ferromagnetic multilayers