Concentration dependence of acoustic phonons of NbDxalloys

Abstract
The acoustic phonon energies for the interstitial alloys NbDx (x=0.10, 0.15, 0.45, 0.60) are compared with the changes of the phonon dispersion curves within the alloy series Nbx Mo1-x and they are related with recent measurements of the Compton profiles on NbH0.29.