Abstract
Thermal conductivity measurements on samples of -Ge down to 50 mK indicate the presence of an approximately Gaussian distribution of resonant scattering frequencies which has a width GHz. The data suggest that this is due to about half of the acceptors which are in distorted sites while the other half are relatively free from distortion. The "two-site" model reconciles disagreements in linewidth from different types of experiment. We obtain a value for eV.
- Received 16 May 1977
DOI:https://doi.org/10.1103/PhysRevLett.39.558
©1977 American Physical Society