Abstract
Lattice dynamical investigation on the Ni0.3Fe0.7-H system has been carried out to calculate the phonon dispersion for Fe rich Ni-Fe alloy along the [100], [101] and [111] directions. A reasonably good agreement is found between the computed and experimental results. Phonon density of states, specific heat and the Debye temperature are also calculated and the results are compared with the available results of others. The mean square displacement of atoms surrounding the interstitial hydrogen atom and the defect modes are also reported.
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