Critical forces at fractional matching fields in superconducting thin films with triangular pinning lattice
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Data
2017-07-01
Autores
Vizarim, Nicolas Porto [UNESP]
Carlone, Maicon [UNESP]
Verga, Lucas Garcia
Venegas, Pablo Antonio [UNESP]
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Resumo
We numerically study the commensurability effects in the critical forces in a type II superconducting thin film with vortices under the influence of a triangular pinning lattice at sub matching fields and zero temperature. The analysis is made applying a transport force in two mutually perpendicular directions and magnetic field perpendicular to the film surface. The results show critical force peaks at fractional matching fields, as a direct consequence of the commensurability effects. For the first time, we simulate the sequence of force peaks detected in recent experiments. Anisotropic effects in the critical forces are also reported, in analogy with that found at higher fields.
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Commensurability, Critical forces, Superconductivity, Vortex pinning
Como citar
Materials Research, v. 20, n. 4, p. 899-903, 2017.