Fig. 2
a Electronic structure of CaTe without SOC. The weights of Te-\(5{p}_{z}\) (Ca-3\({d}_{{z}^{2}}\)) state is proportional to the width of blue (red) curves. b Electronic structure of CaTe with SOC. Along the Γ−M, M−X, and M−M′, a small gap is opened. The Dirac point at the M−R line is protected by the C 4 rotational symmetry. The inset is the detailed structure around the M point (see main text for detailed description)
