Spin-polarised charge carrier device

摘要

A device comprising a channel (15) for charge carriers comprising non-ferromagnetic semiconducting in which charge carriers exhibit spin-orbit coupling, a region (10) of semiconducting material of opposite conductivity type to the channel and configured so as to form a junction (21) with the channel for injecting spin-polarised charge carriers into an end of the channel and at least one lead (18 1 , 18 2 ) connected to the channel for measuring a transverse voltage across the channel.