Magnons in one-dimensional k-component Fibonacci structures

We have studied the magnon transmission through of one-dimensional magnonic k-component Fibonacci structures, where k different materials are arranged in accordance with the following substitution rule: S(k)n=S(k)n−1S(k)n−k (n≥k=0,1,2,…), where S(k)n is the nth stage of the sequence. The calculation...

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Principais autores: Costa, Carlos Humberto Oliveira, Vasconcelos, Manoel Silva de
Formato: article
Idioma:English
Publicado em: AIP Publishing
Assuntos:
Fibonacci structures
Heisenberg model
Endereço do item:https://repositorio.ufrn.br/jspui/handle/123456789/30160
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spelling ri-123456789-301602020-09-27T07:55:31Z Magnons in one-dimensional k-component Fibonacci structures Costa, Carlos Humberto Oliveira Vasconcelos, Manoel Silva de Fibonacci structures Heisenberg model We have studied the magnon transmission through of one-dimensional magnonic k-component Fibonacci structures, where k different materials are arranged in accordance with the following substitution rule: S(k)n=S(k)n−1S(k)n−k (n≥k=0,1,2,…), where S(k)n is the nth stage of the sequence. The calculations were carried out in exchange dominated regime within the framework of the Heisenberg model and taking into account the RPA approximation. We have considered multilayers composed of simple cubic spin-S Heisenberg ferromagnets, and, by using the powerful transfer-matrix method, the spin wave transmission is obtained. It is demonstrated that the transmission coefficient has a rich and interesting magnonic pass- and stop-bands structures, which depends on the frequency of magnons and the k values 2020-09-22T18:28:28Z 2020-09-22T18:28:28Z 2014 article COSTA, C. H.; VASCONCELOS, M. S.. Magnons in one-dimensional k-component Fibonacci structures. Journal Of Applied Physics, [s.l.], v. 115, n. 17, p. 17115, 7 maio 2014. Disponível em: https://aip.scitation.org/doi/10.1063/1.4865888. Acesso em: 08 Set. 2020. http://dx.doi.org/10.1063/1.4865888. 0021-8979 1089-7550 https://repositorio.ufrn.br/jspui/handle/123456789/30160 10.1063/1.4865888 en application/pdf AIP Publishing
institution Repositório Institucional
collection RI - UFRN
language English
topic Fibonacci structures
Heisenberg model
spellingShingle Fibonacci structures
Heisenberg model
Costa, Carlos Humberto Oliveira
Vasconcelos, Manoel Silva de
Magnons in one-dimensional k-component Fibonacci structures
description We have studied the magnon transmission through of one-dimensional magnonic k-component Fibonacci structures, where k different materials are arranged in accordance with the following substitution rule: S(k)n=S(k)n−1S(k)n−k (n≥k=0,1,2,…), where S(k)n is the nth stage of the sequence. The calculations were carried out in exchange dominated regime within the framework of the Heisenberg model and taking into account the RPA approximation. We have considered multilayers composed of simple cubic spin-S Heisenberg ferromagnets, and, by using the powerful transfer-matrix method, the spin wave transmission is obtained. It is demonstrated that the transmission coefficient has a rich and interesting magnonic pass- and stop-bands structures, which depends on the frequency of magnons and the k values
format article
author Costa, Carlos Humberto Oliveira
Vasconcelos, Manoel Silva de
author_facet Costa, Carlos Humberto Oliveira
Vasconcelos, Manoel Silva de
author_sort Costa, Carlos Humberto Oliveira
title Magnons in one-dimensional k-component Fibonacci structures
title_short Magnons in one-dimensional k-component Fibonacci structures
title_full Magnons in one-dimensional k-component Fibonacci structures
title_fullStr Magnons in one-dimensional k-component Fibonacci structures
title_full_unstemmed Magnons in one-dimensional k-component Fibonacci structures
title_sort magnons in one-dimensional k-component fibonacci structures
publisher AIP Publishing
publishDate 2020
url https://repositorio.ufrn.br/jspui/handle/123456789/30160
work_keys_str_mv AT costacarloshumbertooliveira magnonsinonedimensionalkcomponentfibonaccistructures
AT vasconcelosmanoelsilvade magnonsinonedimensionalkcomponentfibonaccistructures
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