The prediction of a family group of two-dimensional node-line semimetals. Issue 35 (29th August 2017)

• Record Type: Journal Article
• Authors: Jin, Yuan-Jun; Wang, Rui; Zhao, Jin-Zhu; Du, Yong-Ping; Zheng, Can-Di; Gan, Li-Yong; Liu, Jun-Feng; Xu, Hu; Tong, S. Y.
• Is Part Of: Nanoscale. Volume 9:Issue 35(2017)
• Page Start: 13112
• Page End: 13118
• Publication Date: 2017-08-29
• Subjects: Nanoscience -- Periodicals; Nanotechnology -- Periodicals; 620.505
• DOI: 10.1039/c7nr03520a
• Languages: English
• ISSNs: 2040-3364

Abstract

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. 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.