"In-Band" Modes of Vibration of PdH0.03

Abstract

The [110] transverse branch of the phonon dispersion relation in a single crystal of Pd${\mathrm{H}}_{0.03}$ has been measured and compared to the results for pure Pd. A limited amount of data has been taken for other branches, and the mean frequency ratio (Pd${\mathrm{H}}_{0.03}$/Pd) observed for all measurements is 0.995. No change was observed in the shape or strength of the anomaly in the [110]${\mathrm{T}}_1$ branch.