Comment on article "Line of Dirac Nodes in Hyperhoneycomb Lattices"

Marcos Veríssimo-Alves, Rodrigo G. Amorim, A. S. Martins

Recently, carbon hyperhoneycomb ($\mathcal{H}$-n) lattices have been proposed to be, through a one-$p$ orbital tight-binding (TB) model with nearest-neighbor (n.n.) hopping, a fami…