  We present a throughout study of transmission and localization properties of
Fibonacci superlattices, both in flat band conditions and subject to
homogeneous electric fields perpendicular to the layers. We use the transfer
matrix formalism to determine the transmission coefficient and the degree of
localization of the electronic states. We find that the fragmentation pattern
of the electronic spectrum is strongly modified when the electric field is
switched on, this effect being more noticeable as the system length increases.
We relate those phenomena to field-induced localization of carriers in
Fibonacci superlattices.
