What is the major reason for peak shift of imaginary part with increase in frequency ?

JASABANTA SEKHAR HANSDAH @Jasabanta-Hansdah

19 January 2017 1 5K Report

If we measure the real and imaginary part with varying different frequency at particular ac field in a superconductor, what is the major reason for peak shift of imaginary part with increase in frequency ?

Krastyo Buchkov

You can check one of the first articles (to my knowledge) on this topic "Flux creep and activation energies at the grain boundaries of Y-Ba-Cu-O superconductors" http://journals.aps.org/prb/abstract/10.1103/PhysRevB.39.6615.

Very briefly about the context of the article: the flux creep is a relaxation process and its time window activity becomes more narrow with the increase of the frequency.

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