Surface effect on the magnetic relaxation in high-temperature superconductors

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The magnetic relaxation and creep of the Abrikosov vortices in high-temperature superconductors are strongly affected by surface barriers, which can dominate over the bulk pinning, especially near Tc. This results in a strong difference of the relaxation rates for vortex entry and exit, non-logarithmic time dependence of the magnetic moment and other peculiarities. An competitive interplay between the surface and bulk relaxations, which gives rise to a crossover in the M(ln t) dependence, is discussed.

Original languageEnglish
Pages (from-to)203-206
Number of pages4
JournalPhysica C: Superconductivity and its Applications
Issue number1-3
StatePublished - 20 Apr 1993

Bibliographical note

Funding Information:
This work is supported by the Israel Academy of Sciences and the Raschi Foundation.


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