Mechanical anisotropy and electronic properties of X2N2 (XH2 ): first-principles calculations*
Xiao-Zhen Li(李小珍),Meng-Jiang Xing(邢孟江)
Figure 9. The directional dependence of Poisson’s ratio of C2 N2 (CH2 ) (a), (b), Si2 N2 (SiH2 ) (c), (d), and Ge2 N2 (GeH2 ) (e), (f), respectively. The light blue pink three-dimensional surface constructions represent the maximum values of Poisson’s ratio, and the light blue purple surface constructions represent the minimum values of Poisson’s ratio, respectively.