Non-universal critical aging scaling in three-dimensional Heisenberg antiferromagnets
dc.contributor.author | Nandi, Riya | en |
dc.contributor.author | Täuber, Uwe C. | en |
dc.contributor.department | Center for Soft Matter and Biological Physics | en |
dc.contributor.department | Physics | en |
dc.date.accessioned | 2018-12-27T18:53:36Z | en |
dc.date.available | 2018-12-27T18:53:36Z | en |
dc.date.issued | 2018-09-20 | en |
dc.date.updated | 2018-12-27T18:53:35Z | en |
dc.description.abstract | We numerically investigate the stationary and non-equilibrium critical dynamics in three-dimensional isotropic Heisenberg antiferromagnets. Since the non-conserved staggered magnetization couples dynamically to the conserved magnetization density, we employ a hybrid simulation algorithm that combines reversible spin precession with relaxational Kawasaki spin exchange processes. We measure the dynamic critical exponent and identify a suitable intermediate time window to obtain the aging scaling exponents. Our results support an earlier renormalization group prediction: While the critical aging collapse exponent assumes a universal value, the associated temporal decay exponent in the two-time spin autocorrelation function depends on the initial distribution of the conserved fields; here, specifically on the width of the initial spin orientation distribution. | en |
dc.description.notes | 5 pages, 4 figures | en |
dc.identifier.orcid | Tauber, Uwe [0000-0001-7854-2254] | en |
dc.identifier.uri | http://hdl.handle.net/10919/86527 | en |
dc.relation.uri | http://arxiv.org/abs/1809.07799v1 | en |
dc.rights | In Copyright | en |
dc.rights.uri | http://rightsstatements.org/vocab/InC/1.0/ | en |
dc.subject | cond-mat.stat-mech | en |
dc.title | Non-universal critical aging scaling in three-dimensional Heisenberg antiferromagnets | en |
dc.type | Article | en |
pubs.organisational-group | /Virginia Tech/Science | en |
pubs.organisational-group | /Virginia Tech | en |
pubs.organisational-group | /Virginia Tech/All T&R Faculty | en |
pubs.organisational-group | /Virginia Tech/Science/Physics | en |
pubs.organisational-group | /Virginia Tech/Science/COS T&R Faculty | en |
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