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Proximity Induced Enhancement of the Curie Temperature in Hybrid Spin Injection Devices

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Song, Cheng ; Sperl, Matthias ; Utz, Martin ; Ciorga, Mariusz ; Woltersdorf, Georg ; Schuh, Dieter ; Bougeard, Dominique ; Back, Christian ; Weiss, Dieter
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Date of publication of this fulltext: 13 Sep 2011 14:54


We investigate the increase of the Curie temperature TC in a lateral spin injection geometry where the ferromagnetic (Ga,Mn)As injector and detector contacts are capped by a thin iron film. Because of interlayer coupling between Fe and (Ga,Mn)As TC gets enhanced by nearly 100% for the thinnest (Ga,Mn)As films. The use of the proximity effect might pave the way for practical implementation of spintronic devices.

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