Abstract
AbstractA phenomenological model developed by the author in an earlier paper [1] is applied to the case of MgO. The two‐phonon combined density of states (C.D.S.) is computed from the calculated frequencies. The C.D.S. peaks show good agreement with the subsidiary maxima in the infrared absorption spectrum of the solid. The calculated dispersion curves agree with Pekham's measurements except for the large wave‐vector region, and the specific heats agree with the experimental observations of Barron et al.
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