  Rashba-type spin-orbit interaction (SOI) controlled band structure of a
two-dimensional superlattice allows for the modulation of the conductance of
finite size devices by changing the strength of the SOI. We consider
rectangular arrays and find that the temperature dependence of the conductance
disappears for high temperatures, but the strength of the SOI still affects the
conductance at these temperatures. The modulation effect can be seen even in
the presence of strong dephasing, which can be important in case of practical
applications.
