Fig. 4: Calculated electronic band structure and Fermi surface of CoNb4Se8.
From: Altermagnetism in the layered intercalated transition metal dichalcogenide CoNb4Se8
a Calculated band structure of CoNb4Se8 with the A-type AFM (altermagnetic) structure. \({\Gamma }^{{\prime} }\), \({{{{\rm{M}}}}}^{{\prime} }\) and \({{{{\rm{K}}}}}^{{\prime} }\) points correspond to midpoints between ΓA, ML, and KH, respectively. b Fermi surface of the same. Green (brown), cyan (magenta) and blue (red) colors correspond to the first (second) spin direction. Note the degeneracy planes, as described in the text. c The Fermi surface cut at kz = π/2c, i.e., through the \({\Gamma }^{{\prime} }-{{{{\rm{M}}}}}^{{\prime} }-{{{{\rm{K}}}}}^{{\prime} }\) plane.
