Shaw, Gorky ; Mandal, Pabitra ; Banerjee, S. S. ; Niazi, A. ; Rastogi, A. K. ; Sood, A. K. ; Tulapurkar, A. ; Ramakrishnan, S. ; Grover, A. K. (2012) A fluctuating state and the critical behavior of the depinning transition in driven vortex matter in superconductors AIP Conference Proceedings, 1447 . pp. 13-18. ISSN 1551-7616
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Official URL: http://proceedings.aip.org/resource/2/apcpcs/1447/...
Related URL: http://dx.doi.org/10.1063/1.4709863
Abstract
A status report is presented on explorations in 2H-NbS2 which have revealed a new protocol that generates vortex states corresponding to two limiting ends of critical current density (Jlc(H) and Jhc (H)) for a given vortex density deep in the mixed state. An ordered vortex array set in motion with transport current I (Ilc < I < Ihc) explores its other option of non-moving jammed state of higher end Ihc while steadily enhancing the driving force. Attempts to further unjam the re-pinned state unmask (i) a moving fluctuating state and (ii) the diverging (life) times along with an underlying critical behaviour at the threshold limit of de-pinning the disordered-jammed state, from both below as well as above Ihc.
Item Type: | Article |
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Source: | Copyright of this article belongs to American Institute of Physics. |
Keywords: | Critical Current Density (Superconductivity); Fluctuations in Superconductors; Flux Pinning; Niobium Compounds; Superconducting Transitions |
ID Code: | 97313 |
Deposited On: | 04 Feb 2013 04:54 |
Last Modified: | 04 Feb 2013 04:54 |
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