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Self‐consistent theory of dynamic melting of a vortex lattice
Author(s) -
Grundberg Staffan,
Rammer Jørgen
Publication year - 2000
Publication title -
annalen der physik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.009
H-Index - 68
eISSN - 1521-3889
pISSN - 0003-3804
DOI - 10.1002/(sici)1521-3889(200001)9:1<19::aid-andp19>3.0.co;2-8
Subject(s) - physics , stars , gravitational wave , astrophysics , black hole (networking) , gravitational energy , spectral signature , scattering , gravitation , astronomy , optics , quantum mechanics , computer network , routing protocol , routing (electronic design automation) , computer science , link state routing protocol
The dynamic melting of vortex lattices in type II superconductors is considered. A field‐theoretic formulation of the pinning problem allows the average over the quenched disorder to be performed exactly. A self‐consistent theory is constructed using a functional method for the effective action, allowing a determination of the pinning force and the vortex fluctuations. The phase diagram for the dynamic melting transition is determined numerically. In contrast to perturbation theory, the self‐consistent theory is in quantitative agreement with the prediction of a recent phenomenological theory and simulations and experimental data.