Electronic structures and stability investigation of the new class of large band gap topological insulators MTl${}_4$Te${}_3$ (M = Cd, Hg)

Ying Li, Gang Xu

By means of ternary chemical potential phase diagram and phonon spectrum calculations, we propose that $M$Tl${}_4$Te${}_3$ ($M$ = Cd, Hg), the derivatives of Tl${}_5$Te${}_3$, are thermody…