Spin extraction from a non-magnetic semiconductor
Bratkovsky, A. M. · Osipov, V. V.
Original · EN
New efficient mechanism of obtaining spin polarization inₙonmagnetic semiconductors at arbitrary temperutures is described. The effect appears during tunneling of electrons from a nonmagnetic semiconductors (S) into ferromagnet (FM) through a Schottky barrier modified with very thin heavily doped interfacial layer. We show that electrons with a certain spin projection are extracted from S, while electrons with the opposite spins are accumulated in S. The spin density increases and spin penetration depth decreases with current.
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