Spin filtering in a hybrid ferromagnetic-semiconductor microstructure
介观与纳米尺度物理
2009-11-10 v1
摘要
We fabricated a hybrid structure in which cobalt and permalloy micromagnets produce a local in-plane spin-dependent potential barrier for high-mobility electrons at the GaAs/AlGaAs interface. Spin effects are observed in ballistic transport in the tens' millitesla range of the external field, and are attributed to switching between Zeeman and Stern-Gerlach modes -- the former dominating at low electron densities.
引用
@article{arxiv.cond-mat/0404282,
title = {Spin filtering in a hybrid ferromagnetic-semiconductor microstructure},
author = {J. Wróbel and T. Dietl and A. Lusakowski and G. Grabecki and K. Fronc and R. Hey and K. H. Ploog and H. Shtrikman},
journal= {arXiv preprint arXiv:cond-mat/0404282},
year = {2009}
}