Physics – Condensed Matter – Superconductivity
Scientific paper
2006-09-13
Physics
Condensed Matter
Superconductivity
11 pages, 4 figures
Scientific paper
We study the melting of the pancake vortex lattice in a layered superconductor in the limit of vanishing Josephson coupling. Our approach combines the methodology of a recently proposed mean-field substrate model for such systems with the classical density functional theory of freezing. We derive a free-energy functional in terms of a scalar order-parameter profile and use it to derive a simple formula describing the temperature dependence of the melting field. Our theoretical predictions are in good agreement with simulation data. The theoretical framework proposed is thermodynamically consistent and thus capable of describing the negative magnetization jump obtained in experiments. Such consistency is demonstrated by showing the equivalence of our expression for the density discontinuity at the transition with the corresponding Clausius-Clapeyron relation.
Blatter Gianni
Col Alvise de
Menon Gautam I.
No associations
LandOfFree
Density functional theory of vortex lattice melting in layered superconductors: a mean-field--substrate approach does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Density functional theory of vortex lattice melting in layered superconductors: a mean-field--substrate approach, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Density functional theory of vortex lattice melting in layered superconductors: a mean-field--substrate approach will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-554290