Kumar, Pradeep; Saha, Surajit; Muthu, D V S; Sahu, J R; Sood, A K; Rao, C N R
(IOP Publishing Ltd, 2010-03-24)
Temperature-dependent Raman spectra of TbMnO3 from 5 to 300 K in the spectral range of 200-1525 cm(-1) show five first-order Raman allowed modes and two high frequency modes. The intensity ratio of the high frequency Raman ...