The University of Southampton
University of Southampton Institutional Repository

Electrodeposited PdNi as possible ferromagnetic contacts for Carbon nanotubes.

Usgaocar, Ashwin and de Groot, Kees (2009) Electrodeposited PdNi as possible ferromagnetic contacts for Carbon nanotubes. Physica Status Solidi C, 247, (4), pp. 888-891.

Record type: Article

Abstract

A process for electrodepositing PdNi alloys and subsequent characterisation studies are reported. PdNi alloys are deposited on 0.019-0.021 Ω.cm and 1-2 Ω.cm n-type Silicon from a bath of Pd-ethylenediamine dichloride and Ni sulphate. The deposited films form excellent Schottky barriers on 1-2 Ω.cm Si with leakage currents of the order of µA/cm2 and forward current higher than the reverse current by about six orders of magnitude at 1V. Ni atomic fractions in the deposited films are studied for different bath concentrations and the deposition potential was found to play an important role in deciding the composition of the deposited film. For high Ni concentration solutions, it is possible to deposit films with a wide range of Ni content by varying the deposition potential, while this method cannot be used with low Ni concentration solutions. Films with Ni concentrations above 30% were observed to be ferromagnetic at room temperature and ferromagnetic properties strengthened with Ni content. A structure for a carbon nanotube device is proposed and electrical characterisations of the device using PdNi alloy contacts are presented. The Schottky barrier characteristics and ferromagnetic character make PdNi alloys a good material for ferromagnetic contacts to CNTs on a Si substrate.

PDF Usgaocar_et_al_2009_PdNi_Ferro_contact.pdf - Author's Original
Download (587kB)

More information

Published date: 2 September 2009
Organisations: Nanoelectronics and Nanotechnology

Identifiers

Local EPrints ID: 267999
URI: http://eprints.soton.ac.uk/id/eprint/267999
PURE UUID: d8297e6f-c6f2-4d83-9cbd-e0a64271caf6
ORCID for Kees de Groot: ORCID iD orcid.org/0000-0002-3850-7101

Catalogue record

Date deposited: 05 Oct 2009 16:49
Last modified: 24 Jul 2017 16:40

Export record

Contributors

Author: Ashwin Usgaocar
Author: Kees de Groot ORCID iD

University divisions

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.

×