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Issue 25, 2020
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Hexagonal layered group IV–VI semiconductors and derivatives: fresh blood of the 2D family

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Abstract

New phases of group IV–VI semiconductors in 2D hexagonal structures are predicted and their unusual physical properties are revealed. The structures of monolayer group IV–VI semiconductors are similar to those of 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.

Graphical abstract: Hexagonal layered group IV–VI semiconductors and derivatives: fresh blood of the 2D family

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Article information


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

Nanoscale, 2020,12, 13450-13459
Article type
Paper

Hexagonal layered group IV–VI semiconductors and derivatives: fresh blood of the 2D family

X. Tian, J. Duan, M. Kiani, Y. Wei, N. Feng, Z. Gong, X. Wang, Y. Du and B. I. Yakobson, Nanoscale, 2020, 12, 13450
DOI: 10.1039/D0NR02217A

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