Suppression of contact-induced spin dephasing in graphene/MgO/Co spin-valve devices by successive oxygen treatments

By successive oxygen treatments of graphene nonlocal spin-valve devices we achieve a gradual increase of the contact-resistance-area products (R sub(c)A) of Co/MgO spin injection and detection electrodes and a transition from linear to nonlinear characteristics in the respective differential dV-dI c...

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Veröffentlicht in:	Physical review. B, Condensed matter and materials physics Condensed matter and materials physics, 2014-10, Vol.90 (16), Article 165403
Hauptverfasser:	Volmer, F., Drögeler, M., Maynicke, E., von den Driesch, N., Boschen, M. L., Güntherodt, G., Stampfer, C., Beschoten, B.
Format:	Artikel
Sprache:	eng
Schlagworte:	Charge transport Condensed matter Devices Electric potential Electrodes Graphene Magnesium oxide Oxides Voltage
Online-Zugang:	Volltext
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