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]
< Reduce
European Synchrotron Radiation Facility [ESRF]
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
Language
en
Article de revue
This item was published in
Physical Review Letters. 2014-04-02, vol. 112, n° 13, p. 137201
American Physical Society
English Abstract
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 ...Read more >
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.Read less <
English Keywords
electromagnon
dynamical magnetoelectric effect
neutron scattering
THz spectroscopy
Origin
Hal imported