THERMODYNAMIC OBSERVATION OF FIRST-ORDER VORTEX-LATTICE MELTING TRANSITION IN BI2SR2CACU2O8

Authors
ZELDOV E MAJER D KONCZYKOWSKI M GESHKENBEIN VB VINOKUR VM SHTRIKMAN H
Citation
E. Zeldov et al., THERMODYNAMIC OBSERVATION OF FIRST-ORDER VORTEX-LATTICE MELTING TRANSITION IN BI2SR2CACU2O8, Nature, 375(6530), 1995, pp. 373-376
Citations number
35
Categorie Soggetti
Multidisciplinary Sciences
Journal title
Nature → ACNP
ISSN journal
00280836
Volume
375
Issue
6530
Year of publication
1995
Pages
373 - 376
Database
ISI
SICI code
0028-0836(1995)375:6530<373:TOOFVM>2.0.ZU;2-C
Abstract
The lattice of magnetic flux lines that can permeate a type ii superco nductor, such as the high-transition-temperature copper oxide material s, melts from a solid-like stale to a liquid-like state at a temperatu re below the superconducting transition temperature. Contrary to the p redictions of mean-field theory, this phase transition in Bi2Sr2CaCu2O 8 is found to be first-order. The vortex liquid discontinuously expand s on freezing.