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cond-mat.str-el2012★ 27 cited
Lattice and spin excitations in multiferroic h-YbMnO3
J. Liu, C. Toulouse, P. Rovillain +6
Lattice and spin excitations have been studied by Raman scattering in hexagonal YbMnO3 single crystals. The temperature dependences of the phonon modes show that the E2 mode at 256…
cond-mat.str-el2012★ 24 cited
Electromagnon and phonon excitations in multiferroic TbMnO3
P. Rovillain, J. Liu, M. Cazayous +4
We have performed Raman measurements on TbMnO3 single crystal under magnetic field along the three crystallographic directions. The flip of the spin spiral plane creates an electro…