Creep via dynamical functional renormalization group

Europhys. Lett. 44, 110 (1998) We study a D-dimensional interface driven in a disordered medium. We derive finite temperature and velocity functional renormalization group (FRG) equations, valid in a 4-D expansion. These equations allow in principle for a complete study of the the velocity versus ap...

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Bibliographic Details
Main Authors Chauve, P, Giamarchi, T, Doussal, P. Le
Format Journal Article
LanguageEnglish
Published 17.04.1998
Subjects
Physics - Disordered Systems and Neural Networks
Physics - Materials Science
Physics - Mesoscale and Nanoscale Physics
Physics - Other Condensed Matter
Physics - Quantum Gases
Physics - Soft Condensed Matter
Physics - Statistical Mechanics
Physics - Strongly Correlated Electrons
Physics - Superconductivity
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Summary:Europhys. Lett. 44, 110 (1998) We study a D-dimensional interface driven in a disordered medium. We derive finite temperature and velocity functional renormalization group (FRG) equations, valid in a 4-D expansion. These equations allow in principle for a complete study of the the velocity versus applied force characteristics. We focus here on the creep regime at finite temperature and small velocity. We show how our FRG approach gives the form of the v-f characteristics in this regime, and in particular the creep exponent, obtained previously only through phenomenological scaling arguments.
DOI:10.48550/arxiv.cond-mat/9804190