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Aging in coarsening diluted ferromagnets

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dc.contributorVirginia Techen
dc.contributor.authorPark, H.en
dc.contributor.authorPleimling, Michel J.en
dc.contributor.departmentPhysicsen
dc.date.accessed2014-04-23en
dc.date.accessioned2014-05-07T15:36:50Zen
dc.date.available2014-05-07T15:36:50Zen
dc.date.issued2010-10en
dc.description.abstractWe comprehensively study nonequilibrium relaxation and aging processes in the two-dimensional randomsite Ising model through numerical simulations. We discuss the dynamical correlation length as well as scaling functions of various two-time quantities as a function of temperature and of the degree of dilution. For already modest values of the dynamical correlation length L deviations from a simple algebraic growth, L(t)similar to t(1/z), are observed. When taking this nonalgebraic growth properly into account, a simple aging behavior of the auto-correlation function is found. This is in stark contrast to earlier studies where, based on the assumption of algebraic growth, a superaging scenario was postulated for the autocorrelation function in disordered ferromagnets. We also study the scaling behavior of the space-time correlation as well as of the time integrated linear response and find again agreement with simple aging. Finally, we briefly discuss the possibility of superuniversality in the scaling properties of space- and time-dependent quantities.en
dc.description.sponsorshipU.S. Department of Energy DE-FG02-09ER46613en
dc.identifier.citationPark, H.; Pleimling, M., "Aging in coarsening diluted ferromagnets," Phys. Rev. B 82, 144406 DOI: http://dx.doi.org/10.1103/PhysRevB.82.144406en
dc.identifier.doihttps://doi.org/10.1103/PhysRevB.82.144406en
dc.identifier.issn1098-0121en
dc.identifier.urihttp://hdl.handle.net/10919/47809en
dc.identifier.urlhttp://journals.aps.org/prb/abstract/10.1103/PhysRevB.82.144406en
dc.language.isoen_USen
dc.publisherAmerican Physical Societyen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectlocal scale-invarianceen
dc.subjectphase-ordering kineticsen
dc.subjectdomain growthen
dc.subjectrandomen
dc.subjectimpuritiesen
dc.subjectrandom magnetsen
dc.subjectdisordered magnetsen
dc.subjectdynamicsen
dc.subjectsystemsen
dc.subjectcellen
dc.subjectautocorrelationen
dc.subjectphysics, condensed matteren
dc.titleAging in coarsening diluted ferromagnetsen
dc.title.serialPhysical Review Ben
dc.typeArticle - Refereeden

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