Disorder-induced vortex-phase transition and its evolution with oxygen doping in Bi1.7Pb0.3Sr2CaCu2Oy crystals

Authors
Yamaguchi, Y Shirakawa, N Rajaram, G Oka, K Mumtaz, A Obara, H Nakagawa, T Bando, H
Citation
Y. Yamaguchi et al., Disorder-induced vortex-phase transition and its evolution with oxygen doping in Bi1.7Pb0.3Sr2CaCu2Oy crystals, PHYSICA C, 361(4), 2001, pp. 244-250
Citations number
46
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICA C
ISSN journal
09214534 → ACNP
Volume
361
Issue
4
Year of publication
2001
Pages
244 - 250
Database
ISI
SICI code
0921-4534(20011001)361:4<244:DVTAIE>2.0.ZU;2-X
Abstract
Onset field H-on of the second peak in the magnetization curve of Bi1.7Pb0. 3Sr2CaCu2Ov crystals with various oxygen concentration gamma, is measured u sing a miniature Hall sensor on thin ring-shaped samples as well as square samples. Systematic change in H-on depending on gamma is qualitatively expl ained with a few assumptions based on the disorder-induced vortex-matter tr ansition. (C) 2001 Elsevier Science B.V. All rights reserved.