Modification by high pressure of fluctuation paraconductivity of underdoped HoBa2Cu3O7-δ single crystals

S. N. Kamchatnaya, I. L. Goulatis, R. V. Vovk, Alexander Chroneos

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    In this work, we investigate the effect of high pressure on the conductivity in the basal plane of the high temperature super conducting (HTSC) single crystals HoBa2Cu3O7-δ. It is determined that the excess conductivity Δσ(T) of the HoBa2Cu3O7- δ single crystals in the temperature interval near the critical temperature (Tc) is described within the framework of the Aslamazov-Larkin theoretical model. It is shown that the evolution of the transverse coherence length ξc(0) in the case of application/removal of high pressure is largely determined by the “relaxation” pressure effect during prolonged exposure of the sample under load at room temperature.

    The final publication is available at Springer via 10.1007/s10854-016-4797-6
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    Original languageEnglish
    Pages (from-to)8013-8019
    JournalJournal of Materials Science: Materials in Electronics
    Issue number8
    Early online date16 Apr 2016
    Publication statusPublished - Aug 2016


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