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Table 1 The cohesive energies of different nanosheets in the unit of eV per atom

From: Unusual structural and electronic properties of porous silicene and germanene: insights from first-principles calculations

Nanosheets

Energies

Graphene

−7.95

Graphyne

−7.03

Silicene

−3.95

Silicyne

−3.11

Germanene

−2.60

SiC nanosheet

−5.97

c-Silicyne

−6.09

GeC

−4.91

c-Germanyne

−5.52a/ −5.55b

  1. aFlat conformation and bhalf-hilled one.

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