Aluminene as highly hole‐doped graphene

Monolayer structures made up of purely one kind of atom are fascinating. Many kinds of honeycomb systems including carbon, silicon, germanium, tin, phosphorus and arsenic have been shown to be stable. However, so far the structures are restricted to group-IV and V elements. In this work we systemati...

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Main Authors: C Kamal, Aparna Chakrabarti, Motohiko Ezawa
Format: Article
Language:English
Published: IOP Publishing 2015-01-01
Series:New Journal of Physics
Subjects:
Online Access:https://doi.org/10.1088/1367-2630/17/8/083014
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author C Kamal
Aparna Chakrabarti
Motohiko Ezawa
author_facet C Kamal
Aparna Chakrabarti
Motohiko Ezawa
author_sort C Kamal
collection DOAJ
description Monolayer structures made up of purely one kind of atom are fascinating. Many kinds of honeycomb systems including carbon, silicon, germanium, tin, phosphorus and arsenic have been shown to be stable. However, so far the structures are restricted to group-IV and V elements. In this work we systematically investigate the stability of monolayer structures made up of aluminium, in four different geometric configurations (planar, buckled, puckered and triangular), by employing density functional theory‐based electronic structure calculation. Our results on cohesive energy and phonon dispersion predict that only the planar honeycomb structure made up of aluminium is stable. We call it ‘aluminene’ according to the standard naming convention. It is a metal. Results of electronic band structure suggest that it may be regarded as a highly hole-doped graphene. We also present the tight-binding model and the Dirac theory to discuss the electronic properties of aluminene.
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spelling doaj.art-50b22906803d4d4694e81033225a7d712023-08-08T14:19:35ZengIOP PublishingNew Journal of Physics1367-26302015-01-0117808301410.1088/1367-2630/17/8/083014Aluminene as highly hole‐doped grapheneC Kamal0Aparna Chakrabarti1Motohiko Ezawa2Indus Synchrotrons Utilization Division, Raja Ramanna Centre for Advanced Technology , Indore 452013, India; Authors to whom any correspondence should be addressed.Indus Synchrotrons Utilization Division, Raja Ramanna Centre for Advanced Technology , Indore 452013, IndiaDepartment of Applied Physics, University of Tokyo , Hongo 7-3-1, 113-8656, Japan; Authors to whom any correspondence should be addressed.Monolayer structures made up of purely one kind of atom are fascinating. Many kinds of honeycomb systems including carbon, silicon, germanium, tin, phosphorus and arsenic have been shown to be stable. However, so far the structures are restricted to group-IV and V elements. In this work we systematically investigate the stability of monolayer structures made up of aluminium, in four different geometric configurations (planar, buckled, puckered and triangular), by employing density functional theory‐based electronic structure calculation. Our results on cohesive energy and phonon dispersion predict that only the planar honeycomb structure made up of aluminium is stable. We call it ‘aluminene’ according to the standard naming convention. It is a metal. Results of electronic band structure suggest that it may be regarded as a highly hole-doped graphene. We also present the tight-binding model and the Dirac theory to discuss the electronic properties of aluminene.https://doi.org/10.1088/1367-2630/17/8/083014aluminenetwo-dimensional materialselectronic structures
spellingShingle C Kamal
Aparna Chakrabarti
Motohiko Ezawa
Aluminene as highly hole‐doped graphene
New Journal of Physics
aluminene
two-dimensional materials
electronic structures
title Aluminene as highly hole‐doped graphene
title_full Aluminene as highly hole‐doped graphene
title_fullStr Aluminene as highly hole‐doped graphene
title_full_unstemmed Aluminene as highly hole‐doped graphene
title_short Aluminene as highly hole‐doped graphene
title_sort aluminene as highly hole doped graphene
topic aluminene
two-dimensional materials
electronic structures
url https://doi.org/10.1088/1367-2630/17/8/083014
work_keys_str_mv AT ckamal alumineneashighlyholedopedgraphene
AT aparnachakrabarti alumineneashighlyholedopedgraphene
AT motohikoezawa alumineneashighlyholedopedgraphene