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Tunable double quantum dots in InAs nanowires

Scheffler, Marc and Nadj-Perge, Stevan and Kouwenhoven, Leo P. and Borgström, Magnus T. and Bakkers, Erik P. A. M. (2008) Tunable double quantum dots in InAs nanowires. Physica E, 40 (5). pp. 1202-1204. ISSN 1386-9477. https://resolver.caltech.edu/CaltechAUTHORS:20160112-112717199

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Abstract

Semiconductor nanowires offer a very versatile approach to create tunable quantum dots. Of the different semiconductor materials that can be grown as nanowires, InAs is particularly interesting due to the large spin–orbit coupling and furthermore promising for devices due to the comparably easy processing for Ohmic contacts. Here we study the electronic transport through gateable InAs nanowire devices at low temperatures. The nanowires are grown by MOVPE, and horizontal devices are individually fabricated using electron-beam lithography. We use local top gates to create barriers that can be used to define tunable quantum dots. Towards our final goal of spin manipulation of single electrons, we focus on tunable double dots. We measure the electronic transport through double quantum dots for the different accessible regimes: we present stability diagrams that demonstrate the tunability from two independent dots to one combined dot, including the particularly interesting region of two interacting quantum dots.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1016/j.physe.2007.08.033DOIArticle
http://www.sciencedirect.com/science/article/pii/S1386947707003177PublisherArticle
ORCID:
AuthorORCID
Nadj-Perge, Stevan0000-0002-2916-360X
Borgström, Magnus T.0000-0001-8061-0746
Additional Information:© 2007 Elsevier B.V. Available online 2 September 2007. This work was partially funded by the EU Project NODE (015783).
Funders:
Funding AgencyGrant Number
EU-project NODE015783
Subject Keywords:Quantum dots; Double quantum dots; Nanowires; InAs
Issue or Number:5
Classification Code:PACS: 73.63.Kv; 73.23.Hk
Record Number:CaltechAUTHORS:20160112-112717199
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20160112-112717199
Official Citation:Marc Scheffler, Stevan Nadj-Perge, Leo P. Kouwenhoven, Magnus T. Borgström, Erik P.A.M. Bakkers, Tunable double quantum dots in InAs nanowires, Physica E: Low-dimensional Systems and Nanostructures, Volume 40, Issue 5, March 2008, Pages 1202-1204, ISSN 1386-9477, http://dx.doi.org/10.1016/j.physe.2007.08.033. (http://www.sciencedirect.com/science/article/pii/S1386947707003177)
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:63592
Collection:CaltechAUTHORS
Deposited By: Ruth Sustaita
Deposited On:12 Jan 2016 20:37
Last Modified:09 Mar 2020 13:18

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