Theory of internal strain measurement in zinc-blende-structure crystals and a reanalysis of work on gallium arsenide

The internal strain parameter (or the bond-bending parameter) of zinc-blende-structure materials can be obtained from the stress dependence of the intensity of weak reflections in uniaxially stressed crystals. The theory, including dispersion and temperature effects, is presented and applied to the reanalysis of earlier work on gallium arsenide. The results are inconsistent, leaving the bond-bending parameter of this material unknown.