Abstract
We apply the model introduced by Anghel et al. [Phys. Rev. B 75, 064202 (2007)] to calculate the anisotropy effect in the interaction of two-level systems with phonons in disordered crystals. We particularize our calculations to cubic crystals and discuss the available experimental data. The results presented here provide a way to determine the distribution of the orientations of two-level systems in a disordered crystal, if specific experimental data would be available; for our examples, we assumed isotropic distribution of orientations.
- Received 3 July 2008
DOI:https://doi.org/10.1103/PhysRevB.78.094202
©2008 American Physical Society
