Fig. 1

a Crystal structure of CaTe in CsCl type phase. b The 3D BZ and projected (001) two dimensional (2D) BZ of CaTe. Three dash circles are the scheme of the three line nodes around the M point. The blue circle is parallel to k z = 0 plane, red circle is parallel to k x = 0 plane, and the green circle is parallel to k y = 0 plane