Fractal aspects of the spin wave spectra in pure and generalized Fibonacci anisotropic magnetic superlattices

R.N.Costa Filho and E.L. Albuquerque

Physica A: Statistical Mechanics and its Applications, 1999, vol. 274, issue 3, 545-554

Abstract: A microscopic theory is employed to investigate the spin-wave spectra in pure and generalized Fibonacci anisotropic magnetic superlattices. We consider that the magnetic material has a ferromagnetic order. The calculations are carried out for the exchange regime within the framework of the Heisenberg model for low temperatures (T⪡TC) taking into account the Holstein–Primakoff transformations. Numerical results are presented to discuss the fractal aspect of the spin-wave spectra, including the localization of the modes as well as their scaling properties.

Keywords: Quasi-crystals; Spin waves; Fractal behavior; Scaling properties (search for similar items in EconPapers)
Date: 1999
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Citations: View citations in EconPapers (1)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:274:y:1999:i:3:p:545-554

DOI: 10.1016/S0378-4371(99)00275-7

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