The NNP is constructed following the Deep Potential (DP) scheme developed by Zhang et al. . In the DP scheme, PES is represented by a deep neural network model that interprets the atomic coordination (R) into interatomic forces (F) and energies (E). The deep neural network contains a filter (embedding) network with three layers (25, 50, and 100 nodes/layer) and a fitting net with three layers (240 nodes/layer). The loss function (L) is defined as,