Soft modes and phonon interactions in Sn2P2S6 studied by neutron scattering S. W.H. Eijt, R. Currat, J. E. Lorenzo, P. Saint-Grégoire, B. Hennion and Yu. M. Vysochanskii Eur. Phys. J. B, 5 2 (1998) 169-178 Published online: 15 September 1998 DOI: 10.1007/s100510050431