@article{article18202682,
title   = {Unusual magneto-optical phenomenon reveals low energy spin dispersion in the spin-1 anisotropic Heisenberg antiferromagnetic chain system 'NiCl IND.2´-'4SC('NH IND.2´) IND.2´},
author = {Cox, S and McDonald, R D and Armanious, M and Sengupta, P and Paduan-Filho, A.},
year = {2008},
journal   = {Physical Review Letters}
}