Dirac states from px,y orbitals in the buckled honeycomb structures: A tight-binding model and first-principles combined study<xref rid="cpb_27_8_087101fn1" ref-type="fn">*</xref><fn id="cpb_27_8_087101fn1"><label>*</label>Project supported by the National Key Research and Development Projects of China (Grant No. 2016YFA0202300), the National Natural Science Foundation of China (Grant No. 61390501), the Science Fund from the Chinese Academy of Sciences (Grant No. XDPB0601), and the US Army Research Office.</fn>

Dirac states from p_x,y orbitals in the buckled honeycomb structures: A tight-binding model and first-principles combined study**

Project supported by the National Key Research and Development Projects of China (Grant No. 2016YFA0202300), the National Natural Science Foundation of China (Grant No. 61390501), the Science Fund from the Chinese Academy of Sciences (Grant No. XDPB0601), and the US Army Research Office.

Song Shi-Ru^{1, 2}, Yang Ji-Hui^{3, †}, Du Shi-Xuan^{1, 2, ‡}, Gao Hong-Jun^{1, 2}, Yakobson Boris I³

(color online) Bi (a) p_y and (b) p_x orbital projected electronic band structure for the BiH buckled monolayers from first-principles calculations. Sb (c) p_y and (d) p_x orbital projected electronic band structure for the SbH buckled monolayers from first-principles calculations. Fermi energy is set to be zero. Symbol (colored dots) size is proportional to the contribution of the corresponding state. Red dots are for the Bi or Sb p_y orbitals and green dots for the Bi or Sb p_x orbitals. Note that the four bands near the Fermi level are mostly from the p_x and p_y orbitals.