Extension of the Raman behavior-type method to the analysis of polarized-scattering intensities of defects in tetragonal crystals.

Abstract

In polarised Raman scattering of point defects in crystals the spectrum is a spatial average of discrete energetically equivalent orientations. Recently, Zhou et al. have introduced the behavior-type (BT) method. The primary aim of the BT method is the determination of the defect symmetry O 1 and its vibrationol modes, which is reflected in the group-theoretical form of the Raman tensor of the single defect. In cubic systems partial or complete preferential orientation of the defects is often necessary to compete for the loss of information in an ensemble average, in order to yield sufficient discriminating power