Measurement of spin-dependent conductivities in a two-dimensional electron gas
Measurement of spin-dependent conductivities in a two-dimensional electron gas
Spin accumulation is generated by injecting an unpolarized charge current into a channel of GaAs two-dimensional electron gas subject to an in-plane magnetic field, then measured in a non-local geometry. Unlike previous measurements that have used spin-polarized nanostructures, here the spin accumulation arises simply from the difference in bulk conductivities …