Abstract
A microscopic model is employed to calculate the spectrum of spin waves
in quasiperiodic magnetic multilayers in the dipole-exchange regime.
Results are presented for structures in which thin ferromagnetic films
are separated by non-magnetic spacers following a Fibonacci sequence and
extend previous magnetostatic calculations. The results show the
splitting of the frequency bands and the mode mixing caused by the
dipolar interaction between the films as a function of spacer thickness,
as well as the fractal aspect of the spectrum induced by the
non-periodic aspect of the structure. (c) 2005 Elsevier B.V. All rights
reserved.
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