Phys. Rev. B 51, 6119–6122 (1995)Complex resistivity of the mixed state in high-Tc superconductors with random and regular pinningsReceived 20 October 1994; published in the issue dated 1 March 1995 We have performed numerical simulations on the ac response of the flux motion in high-Tc superconductors. By using a single-flux-motion model, the complex resistivity against frequency is evaluated under the conditions of random and regular distributions of pinning sites. We find that both the real and imaginary parts of the complex resistivity against frequency obey the power law. More importantly, the numerical results obtained are in good agreement with the experimental measurements. © 1995 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevB.51.6119
DOI:
10.1103/PhysRevB.51.6119
PACS:
74.60.Ge, 74.25.Nf, 74.72.Bk
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