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Proceedings Paper

Phase diagram and clustering in an anisotropic 3D sandpile model of vortex motion
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Paper Abstract

We explore the phase diagram of a recently introduced gradient driven anisotropic 3D sandpile model of vortex dynamics. Two distinct phases are observed: one is a self-organized critical state characterized by avalanches of vortex motion that obey finite-size scaling and that has a finite critical current density; the other one has vortices that cluster together and occupy only every other lattice site in the X-Y plane. The critical current density is zero in the clustered phase. Detailed results of a finite-size scaling analysis of the avalanches in the self-organized phase is discussed, including critical exponents that differ from the corresponding 2D model.

Paper Details

Date Published: 23 May 2005
PDF: 9 pages
Proc. SPIE 5845, Noise in Complex Systems and Stochastic Dynamics III, (23 May 2005); doi: 10.1117/12.609506
Show Author Affiliations
Tegy John Vadakkan, Univ. of Houston (United States)
Kevin E. Bassler, Univ. of Houston (United States)

Published in SPIE Proceedings Vol. 5845:
Noise in Complex Systems and Stochastic Dynamics III
Laszlo B. Kish; Katja Lindenberg; Zoltan Gingl, Editor(s)

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