Bending-induced phase transition in monolayer black phosphorus
Pan Dou-Xing†a),c), Wang Tzu-Chianga), Guo Wan-Linb)
       
Band structures of (a) zigPNTs, (b) zptPNT(0,5) and armPNTs. The dark green lines indicate that the characteristic energy bands consist of local d orbital levels in phosphorus atoms and the band gap in zptPNT(0,5) is 0.75 eV marked by dark green.