Please use this identifier to cite or link to this item:
http://hdl.handle.net/2445/10870
Title: | Elasticity and melting of vortex crystals in anisotropic superconductors: Beyond the continuum regime. |
Author: | Miguel López, María del Carmen Kardar, M. |
Keywords: | Superconductivitat Elasticitat Superconductors Anisotropia Superconductivity Elasticity Superconductors Anisotropy |
Issue Date: | 2000 |
Publisher: | The American Physical Society |
Abstract: | The elastic moduli of vortex crystals in anisotropic superconductors are frequently involved in the investigation of their phase diagram and transport properties. We provide a detailed analysis of the harmonic eigenvalues (normal modes) of the vortex lattice for general values of the magnetic field strength, going beyond the elastic continuum regime. The detailed behavior of these wave-vector-dependent eigenvalues within the Brillouin zone (BZ), is compared with several frequently used approximations that we also recalculate. Throughout the BZ, transverse modes are less costly than their longitudinal counterparts, and there is an angular dependence which becomes more marked close to the zone boundary. Based on these results, we propose an analytic correction to the nonlocal continuum formulas which fits quite well the numerical behavior of the eigenvalues in the London regime. We use this approximate expression to calculate thermal fluctuations and the full melting line (according to Lindeman's criterion) for various values of the anisotropy parameter. |
Note: | Reproducció digital del document publicat en format paper, proporcionada per PROLA i http://dx.doi.org/10.1103/PhysRevB.62.5942 |
It is part of: | Physical Review B, 2000, vol. 62, núm. 9, p. 5942-5956 |
URI: | http://hdl.handle.net/2445/10870 |
Related resource: | http://dx.doi.org/10.1103/PhysRevB.62.5942 |
ISSN: | 0163-1829 |
Appears in Collections: | Articles publicats en revistes (Física de la Matèria Condensada) |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
513965.pdf | 226.26 kB | Adobe PDF | View/Open |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.