Orientational disorder: A mechanism of amorphization at high pressure T. Sakuntala, A. K. Arora, N. V. Chandra Shekar and P. Ch. Sahu Europhys. Lett., 44 6 (1998) 728-733 Published online: 01 September 2002 DOI: 10.1209/epl/i1998-00532-1