English

Spin filtering in a hybrid ferromagnetic-semiconductor microstructure

Mesoscale and Nanoscale Physics 2009-11-10 v1
Authors: J. Wróbel , T. Dietl , A. Lusakowski , G. Grabecki , K. Fronc , R. Hey , K. H. Ploog , H. Shtrikman
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Abstract

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.

Keywords

spintronics spin-orbit coupling magnetism

Cite

@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}
}

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