Vortex-lattice dynamics with channeled pinning potential landscapes
We have studied vortex-lattice dynamics as a function of driving force direction, in superconducting Nb films with periodic pinning arrays of magnetic dots. Square and rectangular symmetry arrays define channels that guide the vortex-lattice motion. We investigated the effect of the driving force di...
| Autores: | , , , , |
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| Tipo de documento: | artigo |
| Data de publicação: | 2005 |
| País: | España |
| Recursos: | Universidad Complutense de Madrid (UCM) |
| Repositório: | Docta Complutense |
| Idioma: | inglês |
| OAI Identifier: | oai:docta.ucm.es:20.500.14352/52079 |
| Acesso em linha: | https://hdl.handle.net/20.500.14352/52079 |
| Access Level: | Acceso aberto |
| Palavra-chave: | 538.9 Superconducting Films Driven Lattices Regular Array Magnetic Dots Thin-Films Motion Phase Nanostructures Systems Física de materiales Física del estado sólido 2211 Física del Estado Sólido |
| Resumo: | We have studied vortex-lattice dynamics as a function of driving force direction, in superconducting Nb films with periodic pinning arrays of magnetic dots. Square and rectangular symmetry arrays define channels that guide the vortex-lattice motion. We investigated the effect of the driving force direction on the commensurability between the vortex-lattice and dots array. We also studied the transverse depinning of the vortex-lattice as is moving longitudinally along channels. We found that transverse depinning forces are enhanced with respect to the static situation. The results are discussed in terms of the dynamical evolution of order in the vortex-lattice. |
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