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Dynamics of thermal effects in the spin-wave theory of quantum antiferromagnets

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dc.contributor.authorRivas Vargas, Ángel
dc.contributor.authorMartín-Delgado Alcántara, Miguel Ángel
dc.date.accessioned2023-06-19T15:15:24Z
dc.date.available2023-06-19T15:15:24Z
dc.date.issued2013-04
dc.description© 2012 Elsevier Inc. We thank the Spanish MICINN grant FIS2009-10061, CAM research consortium QUITEMAD S2009-ESP1594, European Commission PICC: FP7 2007-2013, Grant No. 249958, UCM-BS grant GICC-910758.
dc.description.abstractWe derive a master equation that allows us to study non-equilibrium dynamics of a quantum antiferromagnet. By resorting to spin-wave theory, we obtain a closed analytic form for the magnon decay rates. These turn out to be closely related to form factors, which are experimentally accessible by means of neutron and Raman scattering. Furthermore, we compute the time evolution of the staggered magnetization showing that, for moderate temperatures, the magnetic order is not spoiled even if the coupling is fully isotropic.
dc.description.departmentDepto. de Física Teórica
dc.description.facultyFac. de Ciencias Físicas
dc.description.refereedTRUE
dc.description.sponsorshipUnión Europea. FP7
dc.description.sponsorshipMinisterio de Ciencia e Innovación (MICINN)
dc.description.sponsorshipComunidad de Madrid
dc.description.sponsorshipUniversidad Complutense de Madrid/Banco de Santander
dc.description.statuspub
dc.eprint.idhttps://eprints.ucm.es/id/eprint/47626
dc.identifier.doi10.1016/j.aop.2012.09.012
dc.identifier.issn0003-4916
dc.identifier.officialurlhttp://dx.doi.org/10.1016/j.aop.2012.09.012
dc.identifier.relatedurlhttps://www.sciencedirect.com
dc.identifier.relatedurlhttps://arxiv.org/pdf/1112.3158.pdf
dc.identifier.urihttps://hdl.handle.net/20.500.14352/35623
dc.journal.titleAnnals of physics
dc.language.isoeng
dc.page.final23
dc.page.initial9
dc.publisherElsevier Masson
dc.relation.projectIDPICC (249958)
dc.relation.projectIDFIS2009-10061
dc.relation.projectIDQUITEMAD+ (S2009/ESP-1594)
dc.relation.projectIDGICC-910758
dc.rights.accessRightsopen access
dc.subject.cdu53
dc.subject.keywordFerromagnetism
dc.subject.keywordDependence
dc.subject.keywordLa2CuO4
dc.subject.keywordSystem.
dc.subject.ucmFísica-Modelos matemáticos
dc.titleDynamics of thermal effects in the spin-wave theory of quantum antiferromagnets
dc.typejournal article
dc.volume.number331
dspace.entity.typePublication
relation.isAuthorOfPublication1d87b837-7271-4251-a083-ba395dac6c4b
relation.isAuthorOfPublication1cfed495-7729-410a-b898-8196add14ef6
relation.isAuthorOfPublication.latestForDiscovery1d87b837-7271-4251-a083-ba395dac6c4b

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