Strain-Controlled Magnetic Ordering in 2D Carbon Metamaterials

Document Type

Article

Publication Date

1-24-2020

Publication Title

Carbon

Volume

161

First page number:

219

Last page number:

233

Abstract

We use ab initio spin-polarized density functional theory to study the magnetic order in a Kagomé-like 2D metamaterial consisting of pristine or substitutionally doped phenalenyl radicals polymerized into a nanoporous, graphene-like structure. In this and in a larger class of related structures, the constituent polyaromatic hydrocarbon molecules can be considered as quantum dots that may carry a net magnetic moment. The structure of this porous system and the coupling between the quantum dots may be changed significantly by applying moderate strain, thus allowing to control the magnetic order and the underlying electronic structure.

Keywords

Graphene; Carbon; Metamaterial; Magnetism; DFT

Disciplines

Physics | Polymer and Organic Materials

Language

English

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