Germanene nanomeshes: Cooperative effects of degenerate perturbation and uniaxial strain on tuning bandgap<xref rid="cpb_26_10_108101_fn1" ref-type="fn">*</xref> <fn id="cpb_26_10_108101_fn1"> <label>*</label> <p>Project supported by the National Natural Science Foundation of China (Grant Nos. 11374128 and 11674129) and partially supported by the Science and Technology Program of University of Jinan (Grant No. XKY1705).</p> </fn>

Germanene nanomeshes: Cooperative effects of degenerate perturbation and uniaxial strain on tuning bandgap* *

Project supported by the National Natural Science Foundation of China (Grant Nos. 11374128 and 11674129) and partially supported by the Science and Technology Program of University of Jinan (Grant No. XKY1705).

Su Yan, Fan Xinyu^†

(color online) The band structure along Y′–Γ–Y path (a) and the three-dimensional plotting of the corresponding Dirac cone (b) for the free-standing (3, 3) PGS. Those for the (3, 3) PGS under 4% σ_z strain are shown in panels (c) and (d), respectively. The band-decomposed charge densities at isovalue of ∼ 0.01 e/Å³ for the split π_a and π_z bands are presented in panels (e) and (f), respectively. Both top and side views are shown.