Spin-phonon coupling in multiferroic RCrO3 (R-Y, Lu, Gd, Eu, Sm): A Raman study Venkata Srinu Bhadram, B. Rajeswaran, A. Sundaresan and Chandrabhas Narayana EPL, 101 1 (2013) 17008 Published online: 22 January 2013 DOI: 10.1209/0295-5075/101/17008