Fermi surfaces for (a) type-A and (b) type-B triple-point topological metals at three different energy cuts: below, between, and above the two triple-points. The three small insets in panel (b) show that for the type-B scenario, there are several distinct touching points between the Fermi pockets. (c) Band structure around the triple-points for a small Zeeman field parallel to the C₃ axis. (d) Fermi surface of type-A triple-point topological metal with a small Zeeman field. In panels (c) and (d), the Chern numbers of WPs and Fermi surfaces are marked in red (+1) and blue (−1). Figure reused from Ref. [21].