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arXiv · 2010.15962

Jacutingaite-family: a class of topological materials

F. Crasto de Lima·R. H. Miwa·A. Fazzio
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Abstract

Jacutingate, a recently discovered Brazilian naturally occurring mineral, has shown to be the first experimental realization of the Kane-Mele topological model. In this letter we have unveiled a class of materials $M_2NX_3$ ($M$=Ni, Pt, Pd; $N$=Zn, Cd, Hg; and $X$=S, Se, Te), sharing jacutingaite's key features, i.e., high stability, and topological phase. By employing first-principles calculations we extensively characterize the energetic stability of this class while showing a common occurrence of the Kane-Mele topological phase. Here we found Pt-based materials surpassing jacutingaite's impressive topological gap and lower exfoliation barrier while retaining its stability.

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F. Crasto de Lima, R. H. Miwa, A. Fazzio. 2020-10-29. Jacutingaite-family: a class of topological materials. https://doi.org/10.1103/physrevb.102.235153

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