Negative dynamic creep in 2H-NbSe sub(2) single crystal

We report the observation of a negative dynamic creep rate, i.e. increasing irreversibility in the magnetic hysteresis loop for decreasing sweep rate of the magnetic field, in a 2H-NbSe sub(2) single crystal. This phenomenon is found to appear on the increasing branch of the peak-effect that corresp...

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Bibliographic Details
Published in:Physica. C, Superconductivity Superconductivity, 2000-01, Vol.341-348 (II), p.1099-1100
Main Authors: Zhukov, A A, Kokkaliaris, S, de Groot, P A J, Higgins, M J, Bhattacharya, S
Format: Article
Language:English
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Summary:We report the observation of a negative dynamic creep rate, i.e. increasing irreversibility in the magnetic hysteresis loop for decreasing sweep rate of the magnetic field, in a 2H-NbSe sub(2) single crystal. This phenomenon is found to appear on the increasing branch of the peak-effect that corresponds to a state, which is intermediate between the dislocation-free Bragg glass and a highly disordered vortex phase.
ISSN:0921-4534