Spin waves in quasi-periodic Fe/Cr(100) thin films
| dc.contributor.author | Bezerra, Claudionor Gomes | |
| dc.contributor.author | Mauriz, Paulo Wilson | |
| dc.contributor.author | Albuquerque, Eudenilson Lins de | |
| dc.date.accessioned | 2021-11-26T19:49:25Z | |
| dc.date.available | 2021-11-26T19:49:25Z | |
| dc.date.issued | 2002-02-15 | |
| dc.description.resumo | In this work we have calculated the ferromagnetic (FM) resonance curves of Fe/Cr(100) thin films, which follow the Fibonacci sequence. Our approach is based on the equations of motion for the small-signal magnetization deviation from the equilibrium directions. The equilibrium positions of the magnetizations are calculated from the total energy, which includes the following contributions: Zeeman, bilinear exchange, biquadratic exchange, dipolar, cubic anisotropy and surface anisotropy terms. We also consider the presence of an external magnetic field applied in the plane of the films and parallel to the easy axes. The experimental parameters used in our calculations were recently reported and lie in three regions of interest, namely (i) near to the first antiferromagnetic (AF) peak (strong bilinear exchange coupling), (ii) near to the first FM-AF transition (moderate bilinear exchange coupling) and (iii) near to the second AF peak (weak bilinear exchange coupling comparable to the biquadratic exchange coupling). Our results show the effect of the quasi-periodic arrangement in the spin wave dispersion relation of these artificial structures | pt_BR |
| dc.identifier.citation | MAURIZ, Paulo Wilson; ALBUQUERQUE, Eudenilson Lins de; BEZERRA, Claudionor Gomes. Spin waves in quasi-periodic Fe/Cr(100) thin films. Journal Of Physics: Condensed Matter, [S.L.], v. 14, n. 8, p. 1785-1797, 15 fev. 2002. IOP Publishing. http://dx.doi.org/10.1088/0953-8984/14/8/308. Disponível em: https://iopscience.iop.org/article/10.1088/0953-8984/14/8/308/meta. Acesso em: 26 nov. 2021. | pt_BR |
| dc.identifier.doi | 10.1088/0953-8984/14/8/308 | |
| dc.identifier.uri | https://repositorio.ufrn.br/handle/123456789/45045 | |
| dc.language | en | pt_BR |
| dc.publisher | IOP Publishing | pt_BR |
| dc.subject | Spin waves | pt_BR |
| dc.subject | Ferromagnetic (FM) resonance curves | pt_BR |
| dc.subject | Bilinear exchange | pt_BR |
| dc.subject | Biquadratic exchange | pt_BR |
| dc.title | Spin waves in quasi-periodic Fe/Cr(100) thin films | pt_BR |
| dc.type | article | pt_BR |
Arquivos
Licença do Pacote
1 - 1 de 1
Nenhuma Miniatura disponível
- Nome:
- license.txt
- Tamanho:
- 1.45 KB
- Formato:
- Item-specific license agreed upon to submission
Nenhuma Miniatura disponível