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https://repositorio.ufrn.br/handle/123456789/29077| Título: | Magnetoresistance profiles of quasiperiodic Fe/Cr structures |
| Autor(es): | Albuquerque, Eudenilson Lins de Bezerra, Claudionor Gomes Feitosa, Carlos Chesman de Araújo |
| Palavras-chave: | Semi-empirical models and model calculations;Iron;Chromium;Magnetic films;Metal–metal magnetic thin film structures |
| Data do documento: | 10-Jun-2003 |
| Editor: | Elsevier |
| Referência: | FEITOSA, Carlos Chesman de Araújo; BEZERRA, Claudionor Gomes; ALBUQUERQUE, Eudenilson Lins de. Magnetoresistance profiles of quasiperiodic Fe/Cr structure. Surface Science, [s. l.], v. 47-52, p. 533-535, 2003. Disponível em: https://www.sciencedirect.com/science/article/pii/S0039602803000840. Acesso em: 12 mai. 2020. ISSN 0039-6028. DOI https://doi.org/10.1016/S0039-6028(03)00084-0. |
| Resumo: | We study theoretically the magnetoresistance properties of magnetic films (Fe/Cr) grown following the Fibonacci sequence. We use a theoretical Hamiltonian which includes Zeeman, cubic and uniaxial anisotropy, bilinear and biquadratic exchange energies. In particular, the presence of the uniaxial anisotropy in the Hamiltonian gives new symmetries to the system which were not discussed in previous works. Our physical parameters are based on experimental data recently reported, which contain biquadratic exchange coupling with magnitude comparable to the bilinear exchange coupling. We show the influence of the biquadratic exchange and anisotropies on the self-similar properties of the magnetoresistance profiles |
| URI: | https://repositorio.ufrn.br/jspui/handle/123456789/29077 |
| ISSN: | 0039-6028 (print) |
| Aparece nas coleções: | CCET - DFTE - Artigos publicados em periódicos |
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| Magnetoresistance_Bezerra_2003.pdf | . | 111,64 kB | Adobe PDF |  Visualizar/Abrir |
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