Termination-dependent topological surface states in nodal-loop semimetal HfP2

Christopher Sims, M. Mofazzel Hosen, Hugo Aramberri, Cheng Yi Huang, Gyanendra Dhakal, Klauss Dimitri, Firoza Kabir, Sabin Regmi, Xiaoting Zhou, Tay Rong Chang, Hsin Lin, Dariusz Kaczorowski, Nicholas Kioussis, Madhab Neupane