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Title: Driving-induced crossover: from classical criticality to self-organized criticality
Authors: Perez-Reche, Francisco J.
Truskinovsky, Lev
Zanzotto, Giovanni
Affiliation: University of Abertay Dundee. School of Contemporary Sciences
University of Abertay Dundee. Scottish Informatics, Mathematics, Biology and Statistics Centre
Keywords: Order-disorder models
Issue Date: Dec-2008
Publisher: American Physical Society
Type: Journal Article
Refereed: peer-reviewed
Rights: This is the author's final version of this article. Published version (c)American Physical Society, available from http://dx.doi.org/10.1103/PhysRevLett.101.230601
Citation: Perez-Reche, F.J., Truskinovsky, L. and Zanzotto, G. 2008. Driving-induced crossover: from classical criticality to self-organized criticality. Physical Review Letters. 101(23): 230601. Available from http://dx.doi.org/10.1103/PhysRevLett.101.230601
Abstract: We propose a spin model with quenched disorder which exhibits in slow driving two drastically different types of critical nonequilibrium steady states. One of them corresponds to classical criticality requiring fine-tuning of the disorder. The other is a self-organized criticality which is insensitive to disorder. The crossover between the two types of criticality is determined by the mode of driving. As one moves from “soft” to “hard” driving the universality class of the critical point changes from a classical order-disorder to a quenched Edwards-Wilkinson universality class. The model is viewed as prototypical for a broad class of physical phenomena ranging from magnetism to earthquakes.
URI: http://hdl.handle.net/10373/1125
ISSN: 0031-9007
Appears in Collections:SIMBIOS Collection

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