Kumar, Pradeep; Saha, Surajit; Serrao, C R; Sood, A K; Rao, C N R
(Indian Academy of Sciences, 2010-02)
We have measured near normal incidence far-infrared (FIR) re°ectivity spec-
tra of a single crystal of TbMnO3 from 10 K to 300 K in the spectral range of 50 cm¡1{700
cm¡1. Fifteen transverse optic (TO) and longitudinal ...