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. 2019 Jun 7;5(6):eaav0129. doi: 10.1126/sciadv.aav0129

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Fig. 5 — (A to C) Phonon dispersion and (D to F) Grüneisen parameters of 1-3L BN calculated by DFT. The phonon branches are labeled for 1L BN. Dashed curves represent additional phonon branches and corresponding Grüneisen parameters due to additional BN layers.