Abstract
The scattering of phonons by sessile dislocations has been studied by means of thermal conductivity measurements on plastically deformed germanium samples over the temperature range 0.02 to 6 K. The results are compared with calculations based on the static model of the phonon-dislocation interaction. The scattering strength obtained from experimental data is a factor of two to three larger than that calculated from the static model, while the temperature dependence agrees with theory over a broad range of temperatures.
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