title: Phonon Density of States and Specific Heat of Forsterite, Mg2SiO4.
abstract: The phonon density of states of the geophysically important mineral forsterite has been calculated with a rigid-ion model, which gives good agreement with an experimental measurement by inelastic neutron scattering. The density of states has been used to calculate the specific heat as a function of temperature, the results of which are in excellent agreement with calorimetrically measured values. The rigid-ion model takes account of the interatomic interactions and normal modes of vibration on a detailed microscopic basis, and is therefore more realistic than the Debye and other empirical models used previously.
authors.forename: K R
authors.initials: KR
authors.lastname: Rao
authors.forename: S L
authors.initials: SL
authors.lastname: Chaplot
authors.forename: N
authors.initials: N
authors.lastname: Choudhury
authors.forename: S
authors.initials: S
authors.lastname: Ghose
authors.forename: D L
authors.initials: DL
authors.lastname: Price