The results of optical magneto-spectroscopy study (Raman scattering, THz absorption, high frequency magnetic resonance) of layered MnPS3 and FePS3 antiferromagnets will be presented. Attention will be focused on magneto-elastic interaction in MnPS3  and appearance of magnon polarons in FePS3 . Besides, the origin of a magnon gap in MnPS3 and splitting of this gap observed in both compounds, will be discussed.
1.Magnetoelastic interaction in the two-dimensional magnetic material MnPS3 studied by first principles calculations and Raman experiments
D. Vaclavkova et al., 2D Materials 7, 035030 (2020).
2.Magnon-polarons in van der Waals antiferromagnet FePS3
D. Vaclavkova et al., Phys. Rev. B 104, 134437 (2021)