Abstract
In this paper, a very useful development to improve the application of a
method based on the multiple- diffraction technique to determine the
piezoelectric coefficients of crystals is described. The idea is to
choose any specific crystallographic direction ( plane) through the
secondary peaks in the Renninger scan instead of those directions
related to the electric field by the piezoelectric tensor. For a set of
multiple- diffraction planes, it is possible to obtain an equation
system based on the ordinary peak position for each H secondary plane
that appears in the Renninger scan. This useful development was
successfully applied to the amino acid l- arginine hydrochloride
monohydrate in order to provide the d(21), d(22), d(23) and d(25)
piezoelectric coefficients by applying the electric field along the
010 crystallographic direction.
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