Supercooling of the disordered vortex phase via minor hysteresis loops in 2H-NbSe2

Ravikumar, G. ; Mishra, P. K. ; Sahni, V. C. ; Banerjee, S. S. ; Grover, A. K. ; Ramakrishnan, S. ; Gammel, P. L. ; Bishop, D. J. ; Bucher, E. ; Higgins, M. J. ; Bhattacharya, S. (2000) Supercooling of the disordered vortex phase via minor hysteresis loops in 2H-NbSe2 Physical Review B, 61 (18). pp. 12490-12495. ISSN 0163-1829

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Official URL: http://prb.aps.org/abstract/PRB/v61/i18/p12490_1

Related URL: http://dx.doi.org/10.1103/PhysRevB.61.12490

Abstract

We report on the observation of novel features in the minor hysteresis loops in a clean crystal of 2H-NbSe2, which displays a peak effect. The observed behavior can be explained in terms of a supercooling of the disordered vortex phase while cooling the superconductor in a field. Also, the extent of spatial order in a flux-line lattice formed in ascending fields is different from (and larger than) that in the descending fields below the peak position of the peak effect; this is attributed to a different degree of reorganization of the vortex state induced by changes in the field in the two cases.

Item Type:Article
Source:Copyright of this article belongs to American Physical Society.
ID Code:14736
Deposited On:12 Nov 2010 13:43
Last Modified:16 May 2016 23:42

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