Surperhard monoclinic BC
6
N allotropes: First-principles investigations
Qu Nian-Rui
1
, Wang Hong-Chao
1
, Li Qing
1
, Li Yi-Ding
1
, Li Zhi-Ping
1, †
, Gou Hui-Yang
2
, Gao Fa-Ming
1, ‡
The phonon-dispersion curves of (a) Cm-BC
6
N and (b)Pm-BC
6
N at 0 GPa.