期刊论文详细信息
Measurement of spin-dependent conductivities in a two-dimensional electron gas | |
Article | |
关键词: MAGNETIC-FIELD; INJECTION; TRANSPORT; | |
DOI : 10.1103/PhysRevB.82.041305 | |
来源: SCIE |
【 摘 要 】
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 nonlocal geometry. Unlike previous measurements that have used spin-polarized nanostructures, here the spin accumulation arises simply from the difference in bulk conductivities for spin-up and spin-down carriers. Comparison to a diffusive model that includes spin subband splitting in magnetic field suggests a significantly enhanced electron spin susceptibility in the two-dimensional electron gas.
【 授权许可】
Free