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arXiv · 0805.4317

Manifestation of vortex depinning transition in nonlinear current-voltage characteristics of polycrystalline superconductor Y_{1-x}Pr_{x}Ba_2Cu_3O_7

V. A. G. Rivera·C. Stari·S. Sergeenkov·E. Marega·F. M. Araujo-Moreira
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Abstract

We present our recent results on the temperature dependence of current-voltage characteristics for polycrystalline Y_{1-x}Pr_{x}Ba_2Cu_3O_7 superconductors with x = 0.0, 0.1 and 0.3. The experimental results are found to be reasonably well fitted for all samples by a power like law. According to the theoretical interpretation of the obtained results, nonlinear deviation of our current-voltage characteristics curves from Ohmic behavior below Tc is attributed to the manifestation of dissipation processes related to the current induced depinning of Abrikosov vortices.

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V. A. G. Rivera, C. Stari, S. Sergeenkov, E. Marega, F. M. Araujo-Moreira. 2008-05-28. Manifestation of vortex depinning transition in nonlinear current-voltage characteristics of polycrystalline superconductor Y_{1-x}Pr_{x}Ba_2Cu_3O_7. https://doi.org/10.1016/j.physleta.2008.05.073

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