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Jacutingaite-family: A class of topological materials

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Author(s):
de Lima, F. Crasto ; Miwa, R. H. ; Fazzio, A.
Total Authors: 3
Document type: Journal article
Source: PHYSICAL REVIEW B; v. 102, n. 23, p. 6-pg., 2020-12-23.
Abstract

Jacutingate, a recently discovered Brazilian naturally occurring mineral, has been shown to be an experimental realization of the Kane-Mele topological model. In this paper we present a class of materials, M2NX3 (M = Ni, Pt, and Pd; N = Zn, Cd, and Hg; and X = S, Se, and Te), sharing jacutingaite's key features, i.e., high stability and a 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 present Pt-based materials surpassing jacutingaite's impressive topological gap and lower exfoliation barrier while retaining its stability. (AU)

FAPESP's process: 17/02317-2 - Interfaces in materials: electronic, magnetic, structural and transport properties
Grantee:Adalberto Fazzio
Support Opportunities: Research Projects - Thematic Grants
FAPESP's process: 19/20857-0 - Two-dimensional materials and topological phases: prediction and control of its properties
Grantee:Felipe David Crasto de Lima
Support Opportunities: Scholarships in Brazil - Post-Doctoral