https://www.frontiersin.org/journals/materials/articles/10.3389/fmats.2020.569756/full
Frontiers | Geometric and Electronic Properties of Monolayer HfX2 (X = S, Se, or Te): A...
The essential properties of monolayer HfX2 (X = S, Se, or Te) are fully explored by first-principles calculations. The optimal lattice symmetries, sublattice...