Electronic transport in nanostructures consisting of magnetic barriers.

Abstract

We study the transport properties of the nanostructures consisting of magnetic barriers produced by the deposition of ferromagnetic stripes on heterostructures. It is shown that the electron tunneling through multiple-barrier magnetic structures exhibits complicated resonant features. Due to the averaging of the transmission over half the Fermi surface, the conductance has, however, much simpler resonant structure. As for the single-barrier magnetic structures, our calculations show that the conductance preserves the main feature of the electron tunneling.