Flux Line Lattice Melting Transition in YBa 2 Cu 3 O 6.94 Observed in Specific Heat Experiments
- 30 August 1996
- journal article
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 273 (5279), 1210-1212
- https://doi.org/10.1126/science.273.5279.1210
Abstract
When a magnetic field penetrates a type II superconductor, it forms a lattice of thin quantized filaments called magnetic vortices. Resistance, magnetization, and neutron diffraction experiments have shown that the vortex lattice of high-temperature superconductors can melt along a line in the field-temperature plane. The calorimetric signature of melting on this line was observed in a high-accuracy adiabatic specific heat experiment performed on YBa2Cu3O6.94. The specific heat of the vortex liquid was greater than that of the vortex solid.Keywords
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