J Phys Condens Matter 2021 Jun 23. Epub 2021 Jun 23.
School of Physics and State Key Laboratory of Crystal Materials, Shandong University, Shan Da Nan Lu 27, Jinan 250100, Shandong, Jinan, Shandong, 250100, CHINA.
The linear energy-momentum dispersion of Dirac cones offers a unique platform for mimicking the fantastical phenomena in high energy physics, such as Dirac fermions and black hole (BH) horizons. Three types of Dirac cones (I, III, and II) with different tilts have been proposed individually in specific materials but lack of integral lattice model. Here, we demonstrated the three types of Dirac cones inherited in a -conjugated Cairo lattice of double-degenerate and orbitals by means of tight-binding (TB) approach, which paves a way for the design of two-dimensional (2D) Dirac materials. Read More