Figure 1. Polarized Raman spectra of hexagonal LuMnO₃ single crystal at 21 K obtained in the and configurations using 633 nm red laser.

The broad band of 710–880 cm⁻¹ in single crystal is much more asymmetric than that in thin film. This may indicate more possible modes of magnon scattering with similar energies in single crystal. Mn³⁺ has S = 2, “multi-spin-flipping” magnon mode could be excited in one or more Mn³⁺ ions.