Hall noise and transverse freezing in driven vortex lattices

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We study driven vortices lattices in superconducting thin films. Above the critical force $F_c$ we find two dynamical phase transitions at $F_p$ and $F_t$, which could be observed in simultaneous noise measurements of the longitudinal and the Hall voltage. At $F_p$ there is a transition from plastic flow to smectic flow where the voltage noise is isotropic (Hall noise = longitudinal noise) and there is a peak in the differential resistance. At $F_t$ there is a sharp transition to a frozen transverse solid where the Hall noise falls down abruptly and vortex motion is localized in the transverse direction.
4 pages, 3 figures

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Superconductivity

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http://salesiana.dossiersoluciones.com/handle/123456789/95482

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/cond-mat/9906157
 http://arxiv.org/abs/cond-mat/9906157
 Phys. Rev. Lett. 83, 3061 (1999)
 doi:10.1103/PhysRevLett.83.3061

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arXiv