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. 2018 Dec 3;3(12):16416–16423. doi: 10.1021/acsomega.8b02605

Figure 2.

Figure 2

Phonon band spectrum along with respective PhDOS plots for (a) H–BP, (b) F–BP, (c) H–BAs, and (d) F–BAs. The absence of negative frequencies guarantees the stability of these derivatives.