Distortion-Dependent Raman Spectra and Mode Mixing in RMnO3 Perovskites

M. N. Iliev, M. V. Abrashev, J. Laverdiere +4

The polarized Raman spectra of orthorhombic RMnO3 series (R=La,Pr,Nd,Sm,Eu,Gd,Tb,Dy,Ho,Y) were studied at room temperature. The variation of phonon frequencies with R ionic radius…