Zone center phonons of the orthorhombic trifluorides MF3 (M = Dy, Lu)

摘要

A short range force constant model has been applied for the first time to investigate the phonons in trifluorides MF3 (M = Dy, Lu) in their orthorhombic phase. The calculations with 14 stretching and bending force constants provide good agreement for the observed Raman frequencies. The infrared frequencies have been assigned for the first time. (C) 2004 Elsevier B.V. All rights reserved.