Abstract:
The macroscopic behavior of high-temperature superconductors is described by a nonlinear response function in combinations with Maxwell equations. This function is compatible with the suggested different model pinning barriers U(J). A comparison of this function to the scaling behavior of the isothermal current-voltage characteristics measured in twinned YBa2Cu3O (YBCO) samples shows fair agreement. We also compare the amplitude dependence of ac susceptibility derived from this function with several experimental results of high-temperature superconductors and find a general power law in the out-of-phase peak shift.
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Received 4 August 1999 and Received in final form 30 November 1999
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Wang, Y., Chen, H., Yin, D. et al. Scaling of vortex transport properties and nonlinear ac response of high-temperature superconductors. Eur. Phys. J. B 15, 221–225 (2000). https://doi.org/10.1007/s100510051119
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DOI: https://doi.org/10.1007/s100510051119