UNSPECIFIED (1993) THE IRREVERSIBILITY LINE IN BI2SR2CACU2O8 SINGLE-CRYSTALS. SOLID STATE COMMUNICATIONS, 88 (8). pp. 597-600. ISSN 0038-1098

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Abstract

Ac-susceptibility measurements have been used to investigate the irreversibility line (IL) of a Bi2Sr2CaCu2O8 single crystal. The activation energy, U-0, determined from the frequency dependence of the ac-susceptibility, can be related to the IL if one employs the model of thermally activated flux creep. This correlation is clearly demonstrated by the observation of a kink in the IL and the existence of two regions in the U-0(B) curve. These results show that for the magnetic field strengths considered in this work, the IL is a depinning line arising from a thermally activated process.

Item Type:	Journal Article
Subjects:	Q Science > QC Physics
Journal or Publication Title:	SOLID STATE COMMUNICATIONS
Publisher:	PERGAMON-ELSEVIER SCIENCE LTD
ISSN:	0038-1098
Date:	November 1993
Volume:	88
Number:	8
Number of Pages:	4
Page Range:	pp. 597-600
Publication Status:	Published
URI:	http://wrap.warwick.ac.uk/id/eprint/20934

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