Magneto- to electro-active transmutation of spin waves in ErMnO3
CANO, Andres
European Synchrotron Radiation Facility [ESRF]
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
< Réduire
European Synchrotron Radiation Facility [ESRF]
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
Langue
en
Article de revue
Ce document a été publié dans
Physical Review Letters. 2014-04-02, vol. 112, n° 13, p. 137201
American Physical Society
Résumé en anglais
The low energy dynamical properties of the multiferroic hexagonal perovskite ErMnO3 have been studied by inelastic neutron scattering as well as terahertz and far infrared spectroscopies on synchrotron source. From these ...Lire la suite >
The low energy dynamical properties of the multiferroic hexagonal perovskite ErMnO3 have been studied by inelastic neutron scattering as well as terahertz and far infrared spectroscopies on synchrotron source. From these complementary techniques, we have determined the magnon and crystal field spectra and identified a zone center magnon only excitable by the electric field of an electromagnetic wave. Using comparison with the isostructural YMnO3 compound and crystal field calculations, we propose that this dynamical magnetoelectric process is due to the hybridization of a magnon with an electro-active crystal field transition.< Réduire
Mots clés en anglais
electromagnon
dynamical magnetoelectric effect
neutron scattering
THz spectroscopy
Origine
Importé de halUnités de recherche