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Zeeman ratchets: pure spin current generation in mesoscopic conductors with non-uniform magnetic fields

URN to cite this document:
DOI to cite this document:
Scheid, Matthias ; Bercioux, Dario ; Richter, Klaus
License: Creative Commons: Attribution-Noncommercial-Share Alike 3.0
PDF - Published Version
PDF - Accepted Version
arXiv PDF (17.11.2007)
PDF - Submitted Version
arXiv PDF (17.07.2007)
Date of publication of this fulltext: 05 Aug 2009 13:40


We consider the possibility to employ a quantum wire realized in a two-dimensional electron gas (2DEG) as a spin ratchet. We show that a net spin current without accompanying net charge transport can be induced in the nonlinear regime by an unbiased external driving via an ac voltage applied between the contacts at the ends of the quantum wire. To achieve this, we make use of the coupling of the ...


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