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 language | English |
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Pages (from-to) | 3862-3865 |
Number of pages | 4 |
Journal | Physical Review Letters |
Volume | 71 |
Issue number | 23 |
DOIs | |
Publication status | Published - 1993 |