Spin current and rectification in one-dimensional electronic systems
arXiv:cond-mat/0610847 · doi:10.1103/PhysRevB.76.085119
Abstract
Spin and charge currents can be generated by an ac voltage through a one-channel quantum wire with strong electron interactions in a static uniform magnetic field. In a certain range of low voltages, the spin current can grow as a negative power of the voltage bias as the voltage decreases. The spin current expressed in units of hbar/2 per second can become much larger than the charge current in units of the electron charge per second. The system requires neither spin-polarized particle injection nor time-dependent magnetic fields.
5 pages, 2 figures
References in corpus (6)
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Cited by in corpus (6)
- Artificial Brownian motors: Controlling transport on the nanoscale
- Nonadiabatic charge pumping in a one-dimensional system of noninteracting electrons by an oscillating potential
- Zeeman ratchets: pure spin current generation in mesoscopic conductors with non-uniform magnetic fields
- Rectification and nonlinear transport in chaotic dots and rings
- Enhanced spin Hall effect by tuning antidot potential: Proposal for a spin filter
- Resonant tunneling-based spin ratchets