Evidence for supercooling across a vortex-matter phase transition: studies on CeRu2 and Bi2Sr2CaCu2O8

Chaddah, P. ; Roy, S. B. (1999) Evidence for supercooling across a vortex-matter phase transition: studies on CeRu2 and Bi2Sr2CaCu2O8 Bulletin of Materials Science, 22 (3). pp. 275-278. ISSN 0250-4707

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Official URL: http://www.ias.ac.in/jarch/bms/22/00000295.pdf

Related URL: http://dx.doi.org/10.1007/BF02749931

Abstract

We present DC magnetization data indicating a first-order phase transition in the vortex state of CeRu2, with the higher entropy phase exhibiting enhanced pinning. Minor hysteresis loops show evidence of supercooling of the higher entropy phase as the phase boundary is crossed both isothermally as well as at constant field. These features are shown to be absent across the Bragg-glass to vortex-glass transition in Bi2Sr2CaCu2O8. The supercooling is more persistent in the constant field case.

Item Type:Article
Source:Copyright of this article belongs to Indian Academy of Sciences.
Keywords:Vortex-matter Transition; Supercooling; CeRu2; Bi2Sr2CaCu2O8
ID Code:84614
Deposited On:27 Feb 2012 13:06
Last Modified:19 May 2016 00:59

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