Evidence for flux-lattice melting and a dimensional crossover in single-crystal Bi2.15Sr1.85CaCu2O8+δ from muon spin rotation studies

S. L. Lee*, P. Zimmermann, H. Keller, M. Warden, I. M. Savić, R. Schauwecker, D. Zech, R. Cubitt, E. M. Forgan, P. H. Kes, T. W. Li, A. A. Menovsky, Z. Tarnawski

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

255 Citations (Scopus)

Abstract

The microscopic magnetic field distribution in the mixed state of single-crystal Bi2.15Sr1.85CaCu2O8+δ has been measured using the muon spin rotation technique. A study of the line shapes as a function of temperature and magnetic field gives evidence for an abrupt change of flux-lattice structure which is attributed to the presence of a flux-lattice melting line in the B-T phase diagram. In addition, the data suggest the existence of a crossover field above which the flux structure is more 2D in nature.

Original languageEnglish
Pages (from-to)3862-3865
Number of pages4
JournalPhysical Review Letters
Volume71
Issue number23
DOIs
Publication statusPublished - 1993

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