Critical dynamics of anisotropic antiferromagnets in an external field

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dc.contributor.authorNandi, Riyaen
dc.contributor.authorTäuber, Uwe C.en
dc.contributor.departmentPhysicsen
dc.contributor.departmentCenter for Soft Matter and Biological Physicsen
dc.date.accessioned2020-11-23T14:19:38Zen
dc.date.available2020-11-23T14:19:38Zen
dc.date.issued2020-03-03en
dc.date.updated2020-11-23T14:19:35Zen
dc.description.abstractWe numerically investigate the non-equilibrium critical dynamics in three-dimensional anisotropic antiferromagnets in the presence of an external magnetic field. The phase diagram of this system exhibits two critical lines that meet at a bicritical point. The non-conserved components of the staggered magnetization order parameter couple dynamically to the conserved component of the magnetization density along the direction of the external field. Employing a hybrid computational algorithm that combines reversible spin precession with relaxational Monte Carlo updates, we study the aging scaling dynamics for the model C critical line, identifying the critical initial slip, autocorrelation, and aging exponents for both the order parameter and conserved field, thus also verifying the dynamic critical exponent. We further probe the model F critical line by investigating the system size dependence of the characteristic spin wave frequencies near criticality, and measure the dynamic critical exponents for the order parameter including its aging scaling at the bicritical point.en
dc.description.notes9 pages, 8 figuresen
dc.description.versionPublished versionen
dc.format.extentPages 052114en
dc.format.mimetypeapplication/pdfen
dc.identifier.doihttps://doi.org/10.1103/physreve.102.052114en
dc.identifier.eissn2470-0053en
dc.identifier.issn2470-0045en
dc.identifier.issue5en
dc.identifier.orcidTauber, Uwe [0000-0001-7854-2254]en
dc.identifier.urihttp://hdl.handle.net/10919/100914en
dc.identifier.volume102en
dc.language.isoenen
dc.publisherAmerican Physical Societyen
dc.relation.ispartof2020 American Physical Society March Meetingen
dc.relation.urihttp://dx.doi.org/10.1103/PhysRevE.102.052114en
dc.rightsIn Copyright (InC)en
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectcond-mat.stat-mechen
dc.titleCritical dynamics of anisotropic antiferromagnets in an external fielden
dc.title.serialPhysical Review Een
dc.typeConference proceedingen
dc.type.dcmitypeTexten
pubs.organisational-group/Virginia Tech/Scienceen
pubs.organisational-group/Virginia Tech/Faculty of Health Sciencesen
pubs.organisational-group/Virginia Tech/All T&R Facultyen
pubs.organisational-group/Virginia Tech/Science/Physicsen
pubs.organisational-group/Virginia Tech/Science/COS T&R Facultyen
pubs.organisational-group/Virginia Techen

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