Abstract
Spin wave in an aperiodic ferromagnetic superlattice is studied by the rescaling approach. The Green's function in an aperiodic ferromagnet has been derived in terms of an exact decimation transformation. Using the iteration of the transformation we calculated the density of states (DOS) and the magnetization, when J 1 + J 2 = 2 J 0 = constant, λ = J 2/ J 1. The numerical results showed that the DOS are the same for λ = λ 0 for a fixed λ 0, the bandwidths of DOS and the magnetization depend on λ.
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