Activated behavior of a first-order vortex lattice transition
Vortices in type-II superconductors present a conceptually simple two-dimensional model system to examine problems such as structure formation and transformation at the mesoscopic scale, metastable states, and non-equilibrium kinetics. We will explore metastability in connection with vortex lattice (VL) transitions. Previous studies for continuous (second order) transitions revealed an activated behavior, when the VL was driven towards the equilibrium state by successive applications of ac field cycles. Moreover, the activation barrier increased as the transition towards the equilibrium state progresses, equivalent to an aging of the VL. Here we propose to expand these measurements to discontinuous (first order) VL transitions.
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M. R. Eskildsen; BLACKBURN Elizabeth; Nathan Chalus; CUBITT Robert; DEWHURST Charles; FORGAN Edward M.; Allan Leishman and LONGBONS Grace Marguerite. (2021). Activated behavior of a first-order vortex lattice transition. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.5-42-542
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