Abstract
We present the first non-mean-field calculation of the magnetization of both above and below the flux-lattice melting temperature , in good agreement with experiment. Fluctuations in both order parameter and magnetic induction are included in the Ginzburg-Landau free energy. The second derivative is predicted to be negative throughout the vortex liquid state and positive in the solid state. The discontinuity in entropy at melting is calculated to be per flux line per layer at 50 kOe.
- Received 15 June 1995
DOI:https://doi.org/10.1103/PhysRevLett.75.2582
©1995 American Physical Society