Abstract
A δ-function peak in the specific heat is observed at the melting point of the flux lattice in high- superconductors. It is and in the liquid and the solid phases per flux per layer, respectively, and increases to in around . At the system changes from the triangular flux lattice to a decoupled 2D liquid of vortices. The latent heat is per flux per layer.
- Received 24 March 1997
DOI:https://doi.org/10.1103/PhysRevLett.79.3498
©1997 American Physical Society