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Hexagonal Layered Group IV-VI Semiconductors and Derivatives: Fresh Blood of 2D Family

Abstract

New phases of group IV-VI Semiconductors in the 2D hexagonal structures are predicted and the unusual physical properties are revealed. The structures of monolayer group IV-VI Semiconductors are similar to blue phosphorene and each unit has the same ten valence electrons. The band gap of 2D hexagonal group IV-VI semiconductors depends on both the thickness and stacking order. Atomic functionalization can induce ferromagnetism and the Curie temperature can be tuned. Gapped Dirac Fermions with zero mass are developed and this makes it exceed that of graphene. The Fermi velocity can be compared to or even above that of graphene.

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Article information


Submitted
19 Mar 2020
Accepted
21 May 2020
First published
21 May 2020

Nanoscale, 2020, Accepted Manuscript
Article type
Paper

Hexagonal Layered Group IV-VI Semiconductors and Derivatives: Fresh Blood of 2D Family

X. Tian, Y. Duan, M. Kiani, Y. Wei, N. Feng, Z. Gong, Y. Du, X. Wang and B. I. Yakobson, Nanoscale, 2020, Accepted Manuscript , DOI: 10.1039/D0NR02217A

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