The Electronic Structure of Graphene Nanoislands: A CAS-SCF and NEVPT2 Study

This paper presents a tight binding and ab initio study of finite graphene nanostructures. The attention is focused on three types of regular convex polygons: triangles, rhombuses, and hexagons, which are the most simple high-symmetry convex structures that can be ideally cut out of a graphene layer...

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Main Authors: Lucy Cusinato, Stefano Evangelisti, Thierry Leininger, Antonio Monari
Format: Article
Language:English
Published: Wiley 2018-01-01
Series:Advances in Condensed Matter Physics
Online Access:http://dx.doi.org/10.1155/2018/9097045
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author Lucy Cusinato
Stefano Evangelisti
Thierry Leininger
Antonio Monari
author_facet Lucy Cusinato
Stefano Evangelisti
Thierry Leininger
Antonio Monari
author_sort Lucy Cusinato
collection DOAJ
description This paper presents a tight binding and ab initio study of finite graphene nanostructures. The attention is focused on three types of regular convex polygons: triangles, rhombuses, and hexagons, which are the most simple high-symmetry convex structures that can be ideally cut out of a graphene layer. Three different behaviors are evidenced for these three classes of compounds: closed-shells for hexagons; low-spin open-shells for rhombuses; high-spin open-shells for triangles.
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institution Kabale University
issn 1687-8108
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publishDate 2018-01-01
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series Advances in Condensed Matter Physics
spelling doaj-art-3c3076f045dc47eba9504e1b6cec08cc2025-02-03T01:27:37ZengWileyAdvances in Condensed Matter Physics1687-81081687-81242018-01-01201810.1155/2018/90970459097045The Electronic Structure of Graphene Nanoislands: A CAS-SCF and NEVPT2 StudyLucy Cusinato0Stefano Evangelisti1Thierry Leininger2Antonio Monari3Université de Toulouse, INSA, UPS, CNRS, LPCNO (IRSAMC), 135 avenue de Rangueil, 31077 Toulouse, FranceLaboratoire de Chimie et Physique Quantiques, IRSAMC, Université de Toulouse et CNRS, 118 route de Narbonne, 31062 Toulouse Cedex, FranceLaboratoire de Chimie et Physique Quantiques, IRSAMC, Université de Toulouse et CNRS, 118 route de Narbonne, 31062 Toulouse Cedex, FranceEquipe de Chimie et Biochimie Théoriques, SRSMC, Université de Lorraine et CNRS, Bp 70236 boulevard des Aguilettes, 54506 Vandoeuvre-lès-Nancy Cedex, FranceThis paper presents a tight binding and ab initio study of finite graphene nanostructures. The attention is focused on three types of regular convex polygons: triangles, rhombuses, and hexagons, which are the most simple high-symmetry convex structures that can be ideally cut out of a graphene layer. Three different behaviors are evidenced for these three classes of compounds: closed-shells for hexagons; low-spin open-shells for rhombuses; high-spin open-shells for triangles.http://dx.doi.org/10.1155/2018/9097045
spellingShingle Lucy Cusinato
Stefano Evangelisti
Thierry Leininger
Antonio Monari
The Electronic Structure of Graphene Nanoislands: A CAS-SCF and NEVPT2 Study
Advances in Condensed Matter Physics
title The Electronic Structure of Graphene Nanoislands: A CAS-SCF and NEVPT2 Study
title_full The Electronic Structure of Graphene Nanoislands: A CAS-SCF and NEVPT2 Study
title_fullStr The Electronic Structure of Graphene Nanoislands: A CAS-SCF and NEVPT2 Study
title_full_unstemmed The Electronic Structure of Graphene Nanoislands: A CAS-SCF and NEVPT2 Study
title_short The Electronic Structure of Graphene Nanoislands: A CAS-SCF and NEVPT2 Study
title_sort electronic structure of graphene nanoislands a cas scf and nevpt2 study
url http://dx.doi.org/10.1155/2018/9097045
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