Stress Effects in the Paraelectric Resonance of KCl: Li

Abstract

The paraelectric resonance of KCl: Li was studied in the presence of uniaxial stress applied along the crystallographic [110] direction. The results are interpreted in terms of the simple tunneling model proposed by Gomez, Bowen, and Krumhansl and yield a coupling coefficient for coupling to $T_{2g}$ symmetry strain of - 0.185 ± 0.03 GHz/bar.