PMID: 11308728Apr 20, 2001Paper

Intermittence and roughening of periodic elastic media

Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics
E T SeppäläP M Duxbury

Abstract

We analyze intermittence and roughening of an elastic interface or domain wall pinned in a periodic potential, in the presence of random-bond disorder in 1+1 and 2+1 dimensions. Though the ensemble average behavior is smooth, the typical behavior of a large sample is intermittent, and does not self-average to a smooth behavior. Instead, large fluctuations occur in the mean location of the interface and the onset of interface roughening is via an extensive fluctuation which leads to a jump in the roughness of order lambda, the period of the potential. Analytical arguments based on extreme statistics are given for the number of the minima of the periodicity visited by the interface and for the roughening crossover, which is confirmed by extensive exact ground state calculations.

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Nov 23, 2000·Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics·E T SeppalaP M Duxbury

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Citations

Feb 3, 2004·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·J H MeinkeE A Holm
Jun 21, 2001·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·E T Seppälä, M J Alava
Nov 3, 2001·Physical Review Letters·J D Noh, H Rieger
Oct 9, 2002·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·Jae Dong Noh, Heiko Rieger
Mar 24, 2005·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·E S McGarrityE A Holm
Apr 20, 2004·Physical Review Letters·F CayssolJ P Jamet

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