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Deterministic transfer of spin polarization in wire-like lateral structures via the persistent spin helix

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Schwemmer, M. ; Hanninger, A. ; Weingartner, M. ; Oltscher, M. ; Ciorga, Mariusz ; Weiss, Dieter ; Schuh, Dieter ; Bougeard, Dominique ; Korn, Tobias ; Schüller, Christian
Date of publication of this fulltext: 21 Nov 2016 14:11


We used spatially- and time-resolved Kerr rotation microscopy to show that in lateral wire-like structures, based on a modulation-doped GaAs-AlGaAs quantum well, an optically initialized spin polarization can be deterministically transferred to specific lateral positions, employing the persistent spin helix (PSH). To this end, we show that confinement in two directions leads to a strong ...


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