Time effects and glassy state behaviour in superconducting Y1Ba2Cu3O7−x

The quenched disorder in the moving entity is investigated in a polycrystalline bulk sample of Y1Ba2Cu3O7−x (YBCO) by slow transport relaxation measurements (V–t curves) on long time scales. The time evolution of sample voltage (V–t curve) are correlated to spatial reorganization of the driving curr...

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Bibliographic Details
Published in:Physica. C, Superconductivity Superconductivity, 2007-10, Vol.463-465, p.371-373
Main Authors: Altinkok, A., Yetiş, H., Olutaş, M., Kiliç, K., Kiliç, A.
Format: Article
Language:English
Subjects:
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Exact sciences and technology
Flux creep
Flux pinning
Physics
Properties of type I and type II superconductors
Superconductivity
Vortex lattices
Vortex lattices ,flux pinning, flux creep
Y-based cuprates
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Summary:The quenched disorder in the moving entity is investigated in a polycrystalline bulk sample of Y1Ba2Cu3O7−x (YBCO) by slow transport relaxation measurements (V–t curves) on long time scales. The time evolution of sample voltage (V–t curve) are correlated to spatial reorganization of the driving current together with increasing or decreasing of resistive and non-resistive flow channels in a multiple connected network. In addition, it is shown that the voltage decays appearing in V–t curves are characterized by an exponential time dependence which is analogous to the glassy state relaxation.
ISSN:0921-4534
1873-2143
DOI:10.1016/j.physc.2007.04.234