Figure 4
From: Thickness-dependent in-plane anisotropy of GaTe phonons
Thickness dependence of the amplitude ratio of Raman tensor elements \(\frac{|c|}{|b|}\), (a,c), and phase difference ψbc =|ψb − ψc| (b,d), for all Ag modes measured in parallel polarization configuration. The horizontal dotted lines in (a,c) indicates \(\frac{|c| }{|b|}\) = 1. (a,b) Are the results before the elimination of the enhancement factor, and (c,d) are the results after the elimination of the enhancement factor.
