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13 papers · 1 filter
Height distribution of elastic interfaces in quenched random media
Tuuli Sillanpää, Sanni Nousiainen, Lasse Laurson
Elastic interfaces in quenched random media driven by external forces exhibit a continuous depinning phase transition between pinned and moving phases at a critical external force.…
Asymmetric Roughness of Elastic Interfaces at the Depinning Threshold
Esko Toivonen, Matti Molkkari, Esa Räsänen +1
Roughness of driven elastic interfaces in random media is typically understood to be characterized by a single roughness exponent . We show that at the depinning threshold, due…
The effects of external noise on threshold induced correlations in ferromagnetic systems
Dragutin Jovkovic, Sanja Janicevic, Svetislav Mijatovic +2
In the present paper we investigate the impact of the external noise and detection threshold level on the simulation data for the systems that evolve through metastable states. As…
Propagating bands of plastic deformation in a metal alloy as critical avalanches
Tero Mäkinen, Pasi Karppinen, Markus Ovaska +2
The plastic deformation of metal alloys localizes in the Portevin--Le Chatelier effect in bands of different types, including propagating, or type 'A' bands, usually characterised…
Barkhausen noise from precessional domain wall motion
Touko Herranen, Lasse Laurson
The jerky dynamics of domain walls driven by applied magnetic fields in disordered ferromagnets -- the Barkhausen effect -- is a paradigmatic example of crackling noise. We study B…
Ageing first passage time density in continuous time random walks and quenched energy landscapes
Henning Krusemann, Aljaz Godec, Ralf Metzler
We study the first passage dynamics of an ageing stochastic process in the continuous time random walk (CTRW) framework. In such CTRW processes the test particle performs a random…