Abstract
We study driven vortex 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 Hall voltage. At ${F}_{p}$ there is a transition from plastic flow to smectic flow, where the voltage noise is isotropic (Hall noise $\phantom{\rule{0ex}{0ex}}=\phantom{\rule{0ex}{0ex}}$ 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 abruptly and vortex motion is localized in the transverse direction.
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