Magnetic-order induced phonon splitting in MnO from far-infrared spectroscopy

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dc.creatorRudolf, T.
dc.creatorKant, Ch.
dc.creatorMayr, F.
dc.creatorLoidl, A.
dc.date2007-07-05
dc.date2007-10-15
dc.date.accessioned2026-07-07T09:46:28Z
dc.date.available2026-07-07T09:46:28Z
dc.descriptionDetailed far-infrared spectra of the optical phonons are reported for antiferromagnetic MnO. Eigenfrequencies, phonon damping and effective plasma frequencies are studied as a function of temperature. Special attention is paid to the phonon splitting at the antiferromagnetic phase transition. The results are compared to recent experimental and theoretical studies of the spin-phonon coupling in frustrated magnets, which are explained in terms of a spin-driven Jahn-Teller effect, and to ab initio and model calculations, which predict phonon splitting induced by magnetic order.
dc.description5 pages, 4 figures
dc.identifierhttps://arxiv.org/abs/0707.0820
dc.identifierhttp://arxiv.org/abs/0707.0820
dc.identifierPhys. Rev. B 77, 024421 (2008)
dc.identifierdoi:10.1103/PhysRevB.77.024421
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/163543
dc.subjectStrongly Correlated Electrons
dc.titleMagnetic-order induced phonon splitting in MnO from far-infrared spectroscopy
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