Raman scattering from phonons and magnons in RFe3)BO3)4

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dc.creatorFausti, Daniele
dc.creatorNugroho, Agung
dc.creatorvan Loosdrecht, Paul H. M.
dc.creatorKlimin, Sergei A.
dc.creatorPopova, Marina N.
dc.creatorBezmaternykh, Leonard N.
dc.date2006-04-27
dc.date.accessioned2026-07-07T07:05:45Z
dc.date.available2026-07-07T07:05:45Z
dc.descriptionInelastic light scattering spectra of several members of the RFe3(BO3)4 family reveal a cascade of phase transitions as a function of temperature, starting with a structural, weakly first order, phase transition followed by two magnetic phase transitions. Those consist of the ordering of the Fe-spin sublattice revealed by all the compound, and a subsequent spin-reorientational transition for GdFe3(BO3)4. The Raman data evidence a strong coupling between the lattice and magnetic degrees of freedom in these borates. The Fe-sublattice ordering leads to a strong suppression of the low energy magnetic scattering, and a multiple peaked two-magnon scattering continuum is observed. Evidence for short-range correlations is found in the `paramagnetic' phase by the observation of a broad magnetic continuum in the Raman data, which persists up to surprisingly high temperatures.
dc.description17 pages, 13 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0604615
dc.identifierhttp://arxiv.org/abs/cond-mat/0604615
dc.identifierPhysical Review B74, 024403 (2006).
dc.identifierdoi:10.1103/PhysRevB.74.024403
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/109777
dc.subjectStrongly Correlated Electrons
dc.subjectMaterials Science
dc.titleRaman scattering from phonons and magnons in RFe3)BO3)4
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