666 citations · 2.9k across the 9 of their papers we have counts for
9 papers
Polar phonons and spin excitations coupling in multiferroic BiFeO3 crystals
P. Rovillain, M. Cazayous, Y. Gallais +4
Raman scattering measurements on BiFeO3 single crystals show an important coupling between the magnetic order and lattice vibrations. The temperature evolution of phonons shows tha…
Interplay between magnetic and lattice excitations in BiFeO
M. Cazayous, A. Sacuto, D. Lebeugle +1
We have performed Raman scattering investigations on the high energy magnetic excitations in a BiFeO single crystal as a function of both temperature and laser excitation energ…
Electric-field-induced spin-flop in BiFeO3 single crystals at room-temperature
D. Lebeugle, D. Colson, A. Forget +3
Bismuth ferrite, BiFeO3, is the only known room-temperature 'multiferroic' material. We demonstrate here, using neutron scattering measurements in high quality single crystals, tha…
Observation of electromagnon excitations in the BiFe0 spiral magnet
M. Cazayous, Y. Gallais, A. Sacuto +3
Recently, oxide multiferroics have attracted much attention due to their large magnetoelectric effect which allows the tuning of magnetic properties with electric field and vice ve…
Electric field effect on BiFeO single crystal investigated by Raman spectroscopy
M. Cazayous, D. Malka, D. Lebeugle +1
Micro-Raman spectroscopy has been used to study lattice dynamics associated with the ferroelectric domains of a BiFeO single crystal at low temperature. The phonon assignment s…
Infrared phonon dynamics of multiferroic BiFeO3 single crystal
R. P. S. M. Lobo, R. L. Moreira, D. Lebeugle +1
We discuss the first infrared reflectivity measurement on a BiFeO3 single crystal between 5 K and room temperature. The 9 predicted ab-plane E phonon modes are fully and unambiguou…