Prediction of Novel Stable 2D-Silicon with Fivefold Coordination

Zhenhai Wang, Mingwen Zhao, Xiang-Feng Zhou +6

Silicene, an analogue of graphene, was so far predicted to be the only two-dimensional silicon (2D-Si) with massless Dirac fermions. Here we predict a brand new 2D-Si Dirac semimet…