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Spin–orbit based coherent spin ratchets

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Scheid, Matthias ; Bercioux, Dario ; Richter, Klaus
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arXiv PDF (29.04.2010)
Date of publication of this fulltext: 17 Dec 2010 08:03


The concept of ratchets, driven asymmetric periodic structures giving rise to directed particle flow, has recently been generalized to a quantum ratchet mechanism for spin currents mediated through spin–orbit interaction. Here we consider such systems in the coherent mesoscopic regime and generalize the proposal of a minimal spin ratchet model based on a non-interacting clean quantum wire with ...


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