We have measured the phonon dispersion of wurtzite CdSe along <(Gamma A)ove
r bar> by inelastic neutron scattering at room temperature. The sample was
grown with the very weakly neutron absorbing isotope Cd-116 and natural sel
enium. These experiments extend the picture so far obtained from earlier me
asurements on (CdS)-Cd-114 and deliver more information on the accuracy of
theoretical models. The experimental data are compared with ab initio and s
hell model calculations. (C) 1999 Elsevier Science B.V. All rights reserved
.