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Table 2 Formation energies (E f ) and band gap energies (E g ) of one-side and both-side fully hydrogenated silicene, germanene, SiGe, SiC, and GeC monolayers with chair, boat, and zigzag configurations

From: Band Gap Characters and Ferromagnetic/Antiferromagnetic Coupling in Group-IV Monolayers Tuned by Chemical Species and Hydrogen Adsorption Configurations

  Configuration E f (eV) E g (eV)
Silicene One-side −5.935 1.893
Chair −7.005 2.207
Boat −6.962 1.753
Zigzag −6.966 2.293
Germanene One-side −5.345 1.709
Chair −6.312 1.327
Boat −6.265 1.652
Zigzag −6.270 2.118
SiGe One-side −5.182 1.826
Chair −6.195 1.915
Boat −6.157 1.690
Zigzag −6.160 2.247
SiC One-side −6.055 3.575
Chair −7.062 3.953
Boat −7.024 4.298
Zigzag −7.028 3.905
GeC One-side −5.165 3.180
Chair −6.262 3.528
Boat −6.220 3.619
Zigzag −6.225 3.935