Effect of normal current corrections on the vortex dynamics in type-II superconductors

P. Lipavský; A. Elmurodov; Pei-Jen Lin; P. Matlock; G. R. Berdiyorov

doi:10.1103/PhysRevB.86.144516

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Effect of normal current corrections on the vortex dynamics in type-II superconductors

P. Lipavský, A. Elmurodov, Pei-Jen Lin, P. Matlock, G. R. Berdiyorov

DOI 10.1103/PhysRevB.86.144516 · Physical Review B

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Abstract

Within the time-dependent Ginzburg-Landau theory we discuss the effect of nonmagnetic interactions between the normal current and supercurrent in the presence of electric and magnetic fields. The correction due to the current-current interactions is shown to have a transient character so that it contributes only when a system evolves. Numerical studies for thin current-carrying superconducting strips with no magnetic feedback show that the effect of the normal current corrections is more pronounced in the resistive state where fast-moving kinematic vortices are formed. Simulations also reveal that the largest contribution due to current-current interactions appears near the sample edges, where the vortices reach their maximal velocity.