Abstract
We report on study of the vortex liquid in Pb-doped Bi-2223 single crystal using the in-plane resistivity measurements as a function of temperature and magnetic field up to 6 T applied perpendicular to CuO planes. Below T c at the upper part of superconducting transition we found Arrhenius-like resistivity behavior. With further temperature decrease close to onset of dissipation resistivity shows power law dependence on temperature signaling approaching vortex-glass transition. The critical exponents ν(z − 1) = 4.6 ± 0.5 are found to be field independent within experimental errors. We also present magnetic phase diagram defining region of nonzero critical current for Pb-doped Bi-2223 single crystal.
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Eltsev, Y.F., Lee, S., Nakao, K. et al. Vortex glass scaling in Pb-doped Bi-2223 single crystal. Jetp Lett. 90, 535–538 (2009). https://doi.org/10.1134/S0021364009190084
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DOI: https://doi.org/10.1134/S0021364009190084