Abstract
The Josephson vortex lattice state of the highly anisotropic high-Tc superconductor Bi2Sr2CaCu2O8 has been probed by measurements of the out-of-plane (c-axis) resistivity as a function of temperature, current density, magnetic field strength H and magnetic field orientation angle θ. Anomalous dissipation is observed below a critical temperature identified as the melting transition of the Josephson vortex lattice. The critical T-H and T-θ phase boundaries are determined. The melting transition is interpreted as a Kosterlitz-Thouless depairing of interlayer vortex/anti-vortex pairs. The same model accounts well for unusual in-plane dissipation observed previously in Bi2Sr2CaCu2O8.
Original language | English |
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Pages (from-to) | 841-845 |
Number of pages | 5 |
Journal | Solid State Communications |
Volume | 101 |
Issue number | 11 |
DOIs | |
Publication status | Published - 1 Jan 1997 |
Externally published | Yes |