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Electric Field Control of Spin Lifetimes in Nb-SrTiO3 by Spin-Orbit Fields

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Kamerbeek, M. ; Högl, Petra ; Fabian, Jaroslav ; Banerjee, Tamalika
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Date of publication of this fulltext: 28 Nov 2016 12:53


We show electric field control of the spin accumulation at the interface of the oxide semiconductor Nb−SrTiO3 with Co/AlOx spin injection contacts at room temperature. The in-plane spin lifetime τ∥, as well as the ratio of the out-of-plane to in-plane spin lifetime τ⊥/τ∥, is manipulated by the built-in electric field at the semiconductor surface, without any additional gate contact. The origin of ...


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