The University of Southampton
University of Southampton Institutional Repository

Control of inter-dot electrostatic coupling in an asymmetric silicon double quantum dot operating at 4.5 K

Yamahata, G., Kodera, T., Mizuta, H., Uchida, K. and Oda, S. (2009) Control of inter-dot electrostatic coupling in an asymmetric silicon double quantum dot operating at 4.5 K Applied Physics Express, 2, (9), 095002-1-095002-4. (doi:10.1143/APEX.2.095002).

Record type: Article

Abstract

We report on electron transport measurements of a lithographically-defined silicon double quantum dot (DQD) coupled in series with a top gate and side gates. The structure of the top gate coupled uniformly to the DQD is suitable for realizing a few-electron regime. The obtained small DQD enables us to observe a clear honeycomb-like charge stability diagram at a temperature of 4.5 K. The validity of the DQD structure is confirmed by theoretical calculations. Furthermore, we demonstrate successful modulation of the inter-dot electrostatic coupling by the side gate. Externally tunable coupling is essential for practical implementation of spin-based quantum information devices.

PDF http___apex.ipap.pdf - Version of Record
Download (1MB)

More information

Published date: 21 August 2009
Organisations: Nanoelectronics and Nanotechnology

Identifiers

Local EPrints ID: 267802
URI: http://eprints.soton.ac.uk/id/eprint/267802
PURE UUID: 6f41b5d9-287c-4e74-be8f-a9359886c40b

Catalogue record

Date deposited: 26 Aug 2009 00:42
Last modified: 18 Jul 2017 06:59

Export record

Altmetrics

Contributors

Author: G. Yamahata
Author: T. Kodera
Author: H. Mizuta
Author: K. Uchida
Author: S. Oda

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.

×