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Elastic theory for the vortex-lattice melting in iron-based high-Tc superconductors
- Source :
- New Journal of Physics 11, 035003(2009)
- Publication Year :
- 2008
-
Abstract
- The vortex-lattice melting transitions in two typical iron-based high-Tc superconductor $Ba(Fe_{1-x}Co_{x})_{2}As_{2}$ (122-type) and$Nd(O_{1-x}F_{x})FeAs$ (1111-type) for magnetic fields both parallel and perpendicular to the anisotropy axis are studied within the elastic theory. Using the parameters from experiments, the vortex-lattice melting lines in the H-T diagram are located systematically by various groups of Lindemann numbers. It is observed that the theoretical result for the vortex melting on $Ba(Fe_{1-x}Co_{x})_{2}As_{2}$ for parallel fields agrees well the recent experimental data. The future experimental results for the vortex melting can be compared with the present theoretical prediction by tuning reasonable Lindemann numbers.<br />Comment: 10 pages, 5 figures
- Subjects :
- Condensed Matter - Superconductivity
Condensed Matter - Statistical Mechanics
Subjects
Details
- Database :
- arXiv
- Journal :
- New Journal of Physics 11, 035003(2009)
- Publication Type :
- Report
- Accession number :
- edsarx.0810.3292
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.1088/1367-2630/11/3/035003