“…Nonetheless, it would be straightforward to refine PTBP with a more flexible and/or many-body repulsive potential. 42,59,60,61 As one of the most challenging elements for DFTB, phosphorus is considered in the bottom row of Figure 7c (see Figure S7 for additional comparisons). Here, four different prototypes display significant weights in the loss function, namely, graphite, BCC, diamond, and β-Sn (with Boltzmann factors of 0.11, 0.13, 0.22, and 0.40, respectively).…”