Low-temperature Raman scaterring of PMN-PT close to the morphotropic phase boundary/ AuthorsJ. A. Lima, W. Paraguassub, P. Freirea, A. G. S. Filhoa, F. Meloa, J. M. Filhoa, M. H. Lentec, D. Garciac, J. A. Eirasc/ AbstractThis paper has been withdrawn by the author due to a crucial sign error in equation.