  An ability of various interatomic potentials to reproduce the properties of
silicene (2D silicon) polymorphs were examined. Structural and mechanical
properties of the flat (FS), low-buckled (LBS), trigonal dumbbell (TDS),
honeycomb dumbbell (HDS) and large honeycomb dumbbell (LHDS) single-layer
silicon (silicene) phases, were obtained using density functional theory (DFT)
and molecular statics (MS) calculations with Tersoff, MEAM, Stillinger-Weber,
EDIP, ReaxFF, COMB and machine-learning-based (ML-IAP) interatomic potentials.
A quantitative systematic comparison and discussion of the results obtained are
reported.
