2020/06/01 by Leonardo Rodrigues Cadorim, Cadorim, Leonardo Rodrigues, Junior, Alexssandre de Oliveira +2 · 1 citation
Materials Science · Physics and Astronomy · #FOS: Physical sciences #Magnetic and transport properties of perovskites and related materials #Physics of Superconductivity and Magnetism #Quantum and electron transport phenomena #Superconductivity (cond-mat.supr-con)
paper · pdf · doi:10.48550/arxiv.2006.01335
openalex publication_date 2020/06/01 · openalex created_date 2022/07/26 · openalex updated_date 2026/07/28
Within the framework of the generalized time-dependent Ginzburg-Landau\nequations, we studied the influence of the magnetic self-field induced by the\ncurrents inside a superconducting sample driven by an applied transport\ncurrent. The numerical simulations of the resistive state of the system show\nthat neither material inhomogeneity nor a normal contact smaller than the\nsample width are required to produce an inhomogeneous current distribution\ninside the sample, which leads to the emergence of a kinematic\nvortex-antivortex pair (vortex street) solution. Further, we discuss the\nbehaviors of the kinematic vortex velocity, the annihilation rates of the\nsupercurrent, and the superconducting order parameters alongside the vortex\nstreet solution. We prove that these two latter points explain the\ncharacteristics of the resistive state of the system. They are the fundamental\nbasis to describe the peak of the current-resistance characteristic curve and\nthe location where the vortex-antivortex pair is formed.\n