Orbiton-mediated multi-phonon scattering in La${}_{1-x}$Sr${}_x$MnO${}_3$

K. -Y. Choi, P. Lemmens, G. Güntherodt +6

We report on Raman scattering measurements of single crystalline La${}_{1-x}$Sr${}_x$MnO${}_3$ ($x$=0, 0.06, 0.09 and 0.125), focusing on the high frequency regime. We observe multi-phon…