Tuning the energy gap of bilayer <italic>α</italic>-graphyne by applying strain and electric field

Tuning the energy gap of bilayer α-graphyne by applying strain and electric field

Hang Yang, Wen-Zhi Wu, Yu Jin, Guo Wan-Lin^†,

Projections of the charge density difference to the {100} surface under strains of ± 8%, ± 4%, and zero in the fields of 0.1, 0.2, and 0.4 V/Å. The value and location of the largest charge density difference (in units of e/Å³) are shown in each panel.