Controllable Disorder in a Hybrid Nanoelectronic System: Realization of a Superconducting Diode

We have studied a hybrid nanoelectronic system which consists of an AlGaAs/GaAs two-dimensional electron gas (2DEG) in close proximity (~70 nm) to an Al superconducting nanofilm. By tuning the current through the Al film, we can change the conductance of the 2DEG and furthermore vary the effective d...

Full description

Saved in:
Bibliographic Details
Published in:Scientific reports 2013-07, Vol.3 (1), p.2274-2274, Article 2274
Main Authors: Lo, Shun-Tsung, Chen, Kuang Yao, Lin, Sheng-Di, Wu, J.-Y., Lin, T. L., Yeh, M. R., Chen, T.-M., Liang, C.-T.
Format: Article
Language:English
Subjects:
639/766/119/1003
639/766/119/995
639/766/25
639/925/927/1064
Applied physics
Conductance
Humanities and Social Sciences
multidisciplinary
Science
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:We have studied a hybrid nanoelectronic system which consists of an AlGaAs/GaAs two-dimensional electron gas (2DEG) in close proximity (~70 nm) to an Al superconducting nanofilm. By tuning the current through the Al film, we can change the conductance of the 2DEG and furthermore vary the effective disorder in the Al superconducting film in a controllable way. When a high current is injected into the film, screening which couples the Al film and the 2DEG results in a collapse of anti-symmetric behavior in the current-voltage characteristics, V ( I ) ~ - V (- I ), which holds true in a conventional superconductor. Our results may open a new avenue of experimentally realizing a superconducting diode.
ISSN:2045-2322
2045-2322
DOI:10.1038/srep02274