Vives i Santa-Eulàlia, EduardGoicoechea, JürgenOrtín, Jordi, 1959-Planes Vila, Antoni2011-07-072011-07-0719951063-651Xhttps://hdl.handle.net/2445/18755We have systematically analyzed six different reticular models with quenched disorder and no thermal fluctuations exhibiting a field-driven first-order phase transition. We have studied the nonequilibrium transition, appearing when varying the amount of disorder, characterized by the change from a discontinuous hysteresis cycle (with one or more large avalanches) to a smooth one (with only tiny avalanches). We have computed critical exponents using finite size scaling techniques and shown that they are consistent with universal values depending only on the space dimensionality d.4 p.application/pdfeng(c) The American Physical Society, 1995Física estadísticaTermodinàmicaSistemes dinàmics diferenciablesEquacions d'estatTransformacions de fase (Física estadística)Materials magnèticsCiència dels materialsStatistical physicsThermodynamicsDifferentiable dynamical systemsEquations of statePhase transformations (Statistical physics)Magnetic materialsMaterials scienceinfo:eu-repo/semantics/article112053info:eu-repo/semantics/openAccess