The University of Southampton
University of Southampton Institutional Repository

Effect of electric fields in low-dimensional materials: Nanofrictional response as a case study

Effect of electric fields in low-dimensional materials: Nanofrictional response as a case study
Effect of electric fields in low-dimensional materials: Nanofrictional response as a case study

A proper control of nanoscale friction is mandatory for the fabrication and operation of optimal nanoengineered devices. In this respect, the use of electric fields looks to be promising, since they are able to alter the frictional response without imprinting permanent deformations into the structure. To this aim, we perform ab initio simulations to study the microscopic mechanisms governing friction in low-dimensional materials in the presence of electrostatic fields. We consider MX2 transition metal dichalcogenides as a case study. By applying an electric field along an axis orthogonal to the atom layers, we induce a transfer of charge along the same axis; this transfer modifies the interatomic forces, leading, in general, to easier relative layer motion. The reported outcomes constitute a starting point to study the effect of the field direction on the intrinsic friction in future investigations. Finally, the present results can be used to predict the preferential electronic redistribution in nanostructured devices where metal-to-insulator transitions may occur in working conditions.

2469-9950
Belviso, Florian
78e90cb1-13e2-4539-9713-a31d91164666
Cammarata, Antonio
d9f02172-7364-4d80-a32b-03d2d7970257
Missaoui, Jamil
5f8f2508-5ae2-435b-b1bd-5cd2f3eccba2
Polcar, Tomas
c669b663-3ba9-4e7b-9f97-8ef5655ac6d2
Belviso, Florian
78e90cb1-13e2-4539-9713-a31d91164666
Cammarata, Antonio
d9f02172-7364-4d80-a32b-03d2d7970257
Missaoui, Jamil
5f8f2508-5ae2-435b-b1bd-5cd2f3eccba2
Polcar, Tomas
c669b663-3ba9-4e7b-9f97-8ef5655ac6d2

Belviso, Florian, Cammarata, Antonio, Missaoui, Jamil and Polcar, Tomas (2020) Effect of electric fields in low-dimensional materials: Nanofrictional response as a case study. Physical Review B, 102 (15), [155433]. (doi:10.1103/PhysRevB.102.155433).

Record type: Article

Abstract

A proper control of nanoscale friction is mandatory for the fabrication and operation of optimal nanoengineered devices. In this respect, the use of electric fields looks to be promising, since they are able to alter the frictional response without imprinting permanent deformations into the structure. To this aim, we perform ab initio simulations to study the microscopic mechanisms governing friction in low-dimensional materials in the presence of electrostatic fields. We consider MX2 transition metal dichalcogenides as a case study. By applying an electric field along an axis orthogonal to the atom layers, we induce a transfer of charge along the same axis; this transfer modifies the interatomic forces, leading, in general, to easier relative layer motion. The reported outcomes constitute a starting point to study the effect of the field direction on the intrinsic friction in future investigations. Finally, the present results can be used to predict the preferential electronic redistribution in nanostructured devices where metal-to-insulator transitions may occur in working conditions.

Text
PhysRevB.102.155433 - Version of Record
Available under License Other.
Download (877kB)

More information

Published date: 29 October 2020
Additional Information: Funding Information: This project has received funding from the European Union's Horizon2020 research and innovation programme under Grant agreement No. 721642: SOLUTION. This work has been done with the support of the Czech Science Foundation (Project No. 17-24164Y), and by the project “Novel nanostructures for engineering applications” No. CZ.02.1.01/0.0/0.0/16_026/0008396. This work was supported by The Ministry of Education, Youth and Sports from the Large Infrastructures for Research, Experimental Development and Innovations project “e-Infrastructure CZ—LM2018140.” Publisher Copyright: © 2020 American Physical Society. Copyright: Copyright 2020 Elsevier B.V., All rights reserved.

Identifiers

Local EPrints ID: 453988
URI: http://eprints.soton.ac.uk/id/eprint/453988
ISSN: 2469-9950
PURE UUID: 42d3f54c-1814-40ac-91fa-2043e6eed528
ORCID for Tomas Polcar: ORCID iD orcid.org/0000-0002-0863-6287

Catalogue record

Date deposited: 27 Jan 2022 18:09
Last modified: 25 Jun 2022 01:44

Export record

Altmetrics

Contributors

Author: Florian Belviso
Author: Antonio Cammarata
Author: Jamil Missaoui
Author: Tomas Polcar ORCID iD

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×