ELECTRONIC TRANSPORT THROUGH ONE-DIMENSIONAL MAGNETIC SUPERLATTICES

We have investigated the quantum-mechanical transmission of an electro n in narrow wires, in the presence of a spatially periodic magnetic fi eld. The calculated conductance displays regular dips due to the forma tion of minigaps, and rapid oscillations due to electron transmission through the quasi-zero-dimensional states in the cavity regions betwee n magnetic barriers. The periodic nature of the structure leads to a p rofile of quantization in conductance. The differences between the ele ctric superlattice and magnetic superlattice are highlighted.