1. Universidade Federal do Rio Grande do Norte
2. Centro de Ciências Exatas e da Terra
3. DFTE - Departamento de Física Teórica e Experimental
4. CCET - DFTE - Artigos publicados em periódicos

Título:	Transmission fingerprints in quasiperiodic magnonic multilayers
Autor(es):	Coelho, Isaias Pereira Vasconcelos, Manoel Silva de Bezerra, Claudionor Gomes
Palavras-chave:	Ferromagnetic material;Magnonic multilayer;Spin wave;Quasicrystal
Data do documento:	Dez-2011
Editor:	Elsevier
Referência:	Coelho, I.P.; Vasconcelos, M.S.; Bezerra, C.G.. Transmission fingerprints in quasiperiodic magnonic multilayers. Journal of Magnetism and Magnetic Materials, p. 3162-3167, 2011. Disponível em: https://www.sciencedirect.com/science/article/pii/S0304885311004537?via%3Dihub. Acesso em: 02. jun. 2020. https://doi.org/10.1016/j.jmmm.2011.07.003
Resumo:	In this paper we investigated the influence of mirror symmetry on the transmission spectra of quasiperiodic magnonic multilayers arranged according to Fibonacci, Thue–Morse and double period quasiperiodic sequences. We consider that the multilayers composed of two simple cubic Heisenberg ferromagnets with bulk exchange constants JA and JB and spin quantum numbers SA and SB, respectively. The multilayer structure is surrounded by two semi-infinite slabs of a third Heisenberg ferromagnetic material with exchange constant JC and spin quantum number SC. For simplicity, the lattice constant has the same value a in each material, corresponding to epitaxial growth at the interfaces. The transfer matrix treatment was used for the exchange-dominated regime, taking into account the random phase approximation (RPA). Our numerical results illustrate the effects of mirror symmetry on (i) transmission spectra and (ii) transmission fingerprints
URI:	https://repositorio.ufrn.br/jspui/handle/123456789/29404
ISSN:	0304-8853
Aparece nas coleções:	CCET - DFTE - Artigos publicados em periódicos ECT - Artigos publicados em periódicos

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