Carbon Nanotube Quantum Dots with Nb Contacts

Thumbnail Image

Date

Authors

Journal Title

Journal ISSN

Volume Title

Publisher

Abstract

Description

We report on the preparation of carbon nanotube quantum dots using superconducting electrodes made of niobium. Gate-controllable supercurrents with values of up to 30 nA are induced by the proximity effect. The IV-curves are hysteretic at low temperature and the corresponding switching histograms have a width of ~0.5-2. An on-chip resistive environment integrated in the sample layout is used in order to increase the switching current.
7 pages, 3 figures

Keywords

Superconductivity

Citation

URI

http://salesiana.dossiersoluciones.com/handle/123456789/169173

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/0804.0168
 http://arxiv.org/abs/0804.0168
 Applied Physics Letters 93, 072501 (2008)
 doi:10.1063/1.2971034

Collections

arXiv