The prediction of a family group of two-dimensional node-line semimetals

2016/08/20 by Yuanjun Jin, Yuan-Jun Jin, Rui Wang +11 · 69 citations
Materials Science · Physics and Astronomy · #2D Materials and Applications #Electronic band structure #Graphene research and applications #Group (periodic table) #Inversion (geology) #Lattice (music) #Semimetal #Stability (learning theory) #Structural stability #Topological Materials and Phenomena #cond-mat.mes-hall #cond-mat.mtrl-sci

paper · pdf · doi:10.1039/c7nr03520a

published in Nanoscale 9(35), 13112-13118 (Royal Society of Chemistry)

arxiv created 2016/08/20 · openalex created_date 2016/09/16 · openalex publication_date 2017/01/01 · arxiv updated 2017/09/20 · openalex updated_date 2026/08/05

Abstract

Using first-principles calculations, we predict a family group of two-dimensional semimetals MX (M = Pd, Pt; X = S, Se, Te), which has a zig-zag type mono-layer structure in the Pmma (no. 41) layer group. Band structure analysis reveals that node-line features are caused by band inversion and the inversion exists even in the absence of spin-orbital-coupling. First-principles calculations show the robust lattice stability of these predicted materials. This work provides the possibility of making a group of novel two-dimensional materials with semimetal features.

Citations

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