Bending-induced phase transition in monolayer black phosphorus
Pan Dou-Xing†a),c), Wang Tzu-Chianga), Guo Wan-Linb)
       
Isosurface electronic density diagrams with sectional drawings and relaxed structures of the phase transition nanotubes zptPNTs (top and side views). The detailed structures of the nanotubes are decomposed into I, II, III, IV, and Arm building-blocks. The isosurface level is set to be 0.40  e /Å3.