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https://ri.ufs.br/jspui/handle/riufs/21917| Document Type: | Trabalhos em Eventos |
| Title: | Transport observables for a FNF mesoscopic system in the extreme quantum limit regime |
| Authors: | Souza, Andre Mauricio Conceicao de Rodríguez-Pérez, Sergio Macêdo, Antonio Murilo Santos |
| Issue Date: | 2010 |
| Resumo : | We study the current-induced torque for electrons on ferromagnet-normal metalferromagnet (FNF) trilayer with non-collinear magnetizations. Our system is composed of a chaotic cavity and two junctions, coupled with ideal contacts to ferromagnetic reservatories in local equilibrium by means of a small number of scattering channels. We assume that the normal part is disordered. Each junction is related to the direction of the reservoirs magnetization. The system is taken out of equilibrium causing a spin accumulation. We suppose that all elements have a length smaller than the coherence phase and the spin flip lengths. This consideration lets us neglect decoherence and spin flip processes. The conductance and torque were found numerically by employing the random-matrix theory and scattering matrix formalism for the spin-flux. The observables are presented as a function of the number of propagating channels in the extreme quantum limit regime and of the angle between the magnetizations of the different ferromagnet layers. |
| Keywords: | Ferromagnet/normal-metal/ferromagnet (FNF) |
| ISSN: | 1742-6596 1742-6588 |
| Is part of: | Journal of Physics: Conference Series |
| Language: | eng |
| Publisher / Institution : | IOP Publishing |
| Citation: | SOUZA, A. M. C.; RODRÍGUEZ-PÉREZ, S.; MACÊDO, A. M. S. Transport observables for a FNF mesoscopic system in the extreme quantum limit regime. Journal of Physics: Conference Series, v. 200, 2010. Seção 5. Trabalho apresentado em 18º International Conference on Magnetism, 2009, [Karlsruhe]. Disponível em: https://iopscience.iop.org/article/10.1088/1742-6596/200/5/052027/pdf. Acesso em: 7 maio 2025. |
| License: | Creative Commons Atribuição 4.0 Internacional (CC BY 4.0) |
| URI: | https://ri.ufs.br/jspui/handle/riufs/21917 |
| Appears in Collections: | DFI - Artigos de periódicos DFI - Trabalhos apresentados em eventos |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| TransportObservablesFNF.pdf | 453,68 kB | Adobe PDF |  View/Open |
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