| PDF - Published Version (439kB) | |
| PDF - Accepted Version arXiv PDF (07.11.2007) (301kB) | |
| PDF - Draft Version arXiv PDF (23.01.2007) (416kB) | |
| PDF - Draft Version arXiv PDF (06.01.2006) (230kB) |
- URN to cite this document:
- urn:nbn:de:bvb:355-epub-25393
- DOI to cite this document:
- 10.5283/epub.2539
Abstract
We demonstrate that the combined effect of a spatially periodic potential, lateral confinement, and spin-orbit interaction gives rise to a quantum ratchet mechanism for spin-polarized currents in two-dimensional coherent conductors. Upon adiabatic ac driving, in the absence of a net static bias, the system generates a directed spin current while the total charge current is zero. We analyze the ...
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