%0 Journal Article
%T Resonant Landau-Zener transitions in helical magnetic fields
%A P. Wojcik
%A J. Adamowski
%A M. Woloszyn
%A B. J. Spisak
%J Physics
%D 2014
%I arXiv
%R 10.1088/0268-1242/30/6/065007
%X The spin-dependent electron transport has been studied in magnetic semiconductor waveguides (nanowires) in the helical magnetic field. We have shown that -- apart from the known conductance dip located at the magnetic field equal to the helical-field amplitude $B_h$ -- the additional conductance dips (with zero conductance) appear at magnetic field different from $B_h$. This effect occuring in the non-adiabatic regime is explained as resulting from the resonant Landau-Zener transitions between the spin-splitted subbands.
%U http://arxiv.org/abs/1410.7662v1