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Updated: Aug 12, 2026

Fabrication of Magnetic Nanostructures on Silicon Nitride Membranes for Magnetic Vortex Studies Using Transmission Microscopy Techniques
Published on: July 2, 2018
Spin filtering in a hybrid ferromagnetic-semiconductor microstructure
J Wróbel1, T Dietl, A Lusakowski
1Institute of Physics, Polish Academy of Sciences, al Lotników 32/46, 02-668 Warszawa, Poland.
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 range of tens of mT of the external field and are attributed to switching between Zeeman and Stern-Gerlach modes--the former dominating at low electron densities.
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