Superuniversality in phase-ordering disordered ferromagnets
| dc.creator | Henkel, Malte | |
| dc.creator | Pleimling, Michel | |
| dc.date | 2008-07-09 | |
| dc.date | 2009-01-23 | |
| dc.date.accessioned | 2026-07-07T12:32:44Z | |
| dc.date.available | 2026-07-07T12:32:44Z | |
| dc.description | The phase-ordering kinetics of the ferromagnetic two-dimensional Ising model with uniform bond disorder is investigated by intensive Monte Carlo simulations. Simple ageing behaviour is observed in the single-time correlator and the two-time responses and correlators. The dynamical exponent z and the autocorrelation exponent lambda_C only depend on the ratio eps/T, where eps describes the width of the distribution of the disorder, whereas a more complicated behaviour is found for the non-equilibrium exponent a of the two-time response as well as for the autoresponse exponent lambda_R. The scaling functions are observed to depend only on the dimensionless ratio eps/T. If the length scales are measured in terms of the time-dependent domain size L(t), the form of the scaling functions is in general independent of both eps and T. Conditions limiting the validity of this `superuniversality' are discussed. | |
| dc.description | Latex2e, 10pp with 8 figures included, PR macros | |
| dc.identifier | https://arxiv.org/abs/0807.1485 | |
| dc.identifier | http://arxiv.org/abs/0807.1485 | |
| dc.identifier | Phys. Rev. B78, 224419 (2008) | |
| dc.identifier | doi:10.1103/PhysRevB.78.224419 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/216882 | |
| dc.subject | Disordered Systems and Neural Networks | |
| dc.subject | Statistical Mechanics | |
| dc.title | Superuniversality in phase-ordering disordered ferromagnets | |
| dc.type | text |