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]
< Leer menos
European Synchrotron Radiation Facility [ESRF]
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
Idioma
en
Article de revue
Este ítem está publicado en
Physical Review Letters. 2014-04-02, vol. 112, n° 13, p. 137201
American Physical Society
Resumen en inglés
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 ...Leer más >
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.< Leer menos
Palabras clave en inglés
electromagnon
dynamical magnetoelectric effect
neutron scattering
THz spectroscopy
Orígen
Importado de HalCentros de investigación