標題: Melting of the vortex lattice in high-T-c superconductors
作者: Li, DP
Rosenstein, B
電子物理學系
Department of Electrophysics
公開日期: 1-六月-2002
摘要: The precise measurements of vortex melting point towards a need to develop a quantitative theoretical description of thermal fluctuations in vortex matter. To tackle the difficult problem of melting, the description of both the solid and the liquid phase should reach the precision level well below 1%. Such a theory in the framework of the Ginzburg-Landau approach is presented. The melting line location is determined, and magnetization and specific-heat jumps along it are calculated. We find that the magnetization in the liquid is larger than that in the solid by 1.8% regardless of the melting temperature, while the specific-heat jump is about 6% and slowly decreases with temperature. The magnetization curves agree with experimental results on Y-Ba-Cu-O and Monte Carlo simulations.
URI: http://dx.doi.org/10.1103/PhysRevB.65.220504
http://hdl.handle.net/11536/28734
ISSN: 1098-0121
DOI: 10.1103/PhysRevB.65.220504
期刊: PHYSICAL REVIEW B
Volume: 65
Issue: 22
結束頁: 
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