Articoli
Volume 146 • (2012) Rendiconti - Classe di Scienze Matematiche e Naturali
https://doi.org/10.4081/scie.2012.163
AVALANCHE DYNAMICS IN DISORDERED SYSTEMS
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All claims expressed in this article are solely those of the authors and do not necessarily represent those of their affiliated organizations, or those of the publisher, the editors and the reviewers. Any product that may be evaluated in this article or claim that may be made by its manufacturer is not guaranteed or endorsed by the publisher.
All claims expressed in this article are solely those of the authors and do not necessarily represent those of their affiliated organizations, or those of the publisher, the editors and the reviewers. Any product that may be evaluated in this article or claim that may be made by its manufacturer is not guaranteed or endorsed by the publisher.
Ricevuto: 13 luglio 2015
Pubblicato: 30 dicembre 2015
Pubblicato: 30 dicembre 2015
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We describe the complex dynamics of an interface (like a magnetic domain wall) on a disordered landscape. In presence of a small external drive (i.e. an external magnetic filed) the motion of the interface is slow and jerky. Two different regimes can be distinguished: the thermally activated regime where the interface spend most of the time in deep metastable states separated by large barriers (creep regime) and the avalanche regime where motion persists also at zero temperature, but it involves collective re-organizations (depinning). Our results shed light on the interplay between these two regimes and on the avalanche statistics.
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Come citare
AVALANCHE DYNAMICS IN DISORDERED SYSTEMS. (2015). Istituto Lombardo - Accademia di Scienze e Lettere - Rendiconti di Scienze, 146. https://doi.org/10.4081/scie.2012.163