Abstract
We have investigated the microscopic ordering of the flux lattice in the mixed state of Bi2.1Sr1.9Ca0.9Cu2O8+ near Hc1 by image analysis of Bitter-decorated samples. We observe a dramatic transition from strong isotropic disorder to hexatic order with increasing magnetic field. This transition occurs at a lower applied magnetic field for samples which are annealed in oxygen.
Original language | English (US) |
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Pages (from-to) | 2270-2273 |
Number of pages | 4 |
Journal | Physical Review Letters |
Volume | 66 |
Issue number | 17 |
DOIs | |
State | Published - 1991 |
ASJC Scopus subject areas
- General Physics and Astronomy