Physica E, ( ISI ), Volume (89), No (1), Year (2017-2) , Pages (155-159)

Title : ( Semimetal behavior of bilayer stanene )

Authors: Iman Evazzade , Mahmood Rezaee Roknabadi , T. Morshedloo , محسن مدرسی , Y. Mogulkoc , هادی نعمتی فر ,

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Abstract

Stanene is a two-dimensional (2D) buckled honeycomb structure which has been studied recently owing to its promising electronic properties for potential electronic and spintronic applications in nanodevices. In this article we present a first-principles study of electronic properties of fluorinated bilayer stanene. The effect of tensile strain, intrinsic spin-orbit and van der Waals interactions are considered within the framework of density functional theory. The electronic band structure shows a very small overlap between valence and conduction bands at the Γ point which is a characteristic of semimetal in fluorinated bilayer stanene. A relatively high value of tensile strain is needed to open an energy band gap in the electronic band structure and the parity analysis reveals that the strained nanostructure is a trivial insulator. According to our results, despite the monolayer fluorinated stanene, the bilayer one is not an appropriate candidate for topological insulator.

Keywords

, Bilayer stanene, Semimetal behaviorm, Topological insulators, First-principles calculations
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@article{paperid:1064325,
author = {Evazzade, Iman and Rezaee Roknabadi, Mahmood and T. Morshedloo and محسن مدرسی and Y. Mogulkoc and هادی نعمتی فر},
title = {Semimetal behavior of bilayer stanene},
journal = {Physica E},
year = {2017},
volume = {89},
number = {1},
month = {February},
issn = {1386-9477},
pages = {155--159},
numpages = {4},
keywords = {Bilayer stanene; Semimetal behaviorm; Topological insulators; First-principles calculations},
}

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%0 Journal Article
%T Semimetal behavior of bilayer stanene
%A Evazzade, Iman
%A Rezaee Roknabadi, Mahmood
%A T. Morshedloo
%A محسن مدرسی
%A Y. Mogulkoc
%A هادی نعمتی فر
%J Physica E
%@ 1386-9477
%D 2017

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