The solid/liquid intermediate state in BSCCO single crystals

The results of calculations for the field profiles, and for local and globa l magnetisation, in BSCCO-2212 single crystal specimens in the regime of th e solid/liquid intermediate state are presented and compared with experimen tal data. The calculations are based on an assumption of a first-order tran sition between explicit equilibrium constitutive B-rev(H) relations for the solid and liquid vortex matter states at a characteristic hysteretic inter nal field H-m. The procedures for the accurate determination of the entropy of melting from global and local magnetisation data in the intermediate st ate regime are described. (C) 2000 Elsevier Science B.V. All rights reserve d.