Figure 6
The stress-strain relation for c-silicyne and c-germanyne. The inset in (a) depicts the phonon curves of c-silicyne at the 0.10 strain, and the inset in (b) corresponds to the phonon curves of c-germanyne at the 0.08 strain. (c,d) The HSE gap variations of c-silicyne and c-germanyne under the tensile strains. The inset in (c) is the variation of E M for the antiferromagnetism in c-silicyne.