Topological $p_z$-wave nodal-line superconductivity with flat surface bands in the AH${}_x$Cr${}_3$As${}_3$ (A=Na, K, Rb, Cs) superconductors

Juan-Juan Hao, Ming Zhang, Xian-Xin Wu +1

We study the pairing symmetry and the topological properties of the hydrogen-doped ACr${}_3$As${}_3$ superconductors. Based on our first-principle band structure with spin-orbit-coupli…