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Single-Fluxon controlled resistance switching in centimeter-long superconducting Gallium-Indium eutectic nanowires

Zhao, Weiwei, Bischof, Jesse L., Hutasoit, Jimmy, Liu, Xin, Fitzgibbons, Thomas C., Hayes, John R., Sazio, Pier J.A., Liu, Chaoxing, Jain, Jainendra K., Badding, John V. and Chan, M.H.W. (2015) Single-Fluxon controlled resistance switching in centimeter-long superconducting Gallium-Indium eutectic nanowires Nano Letters, 15, (1), pp. 153-158. (doi:10.1021/nl503283e).

Record type: Article

Abstract

The ability to manipulate a single quantum object, such as a single electron or a single spin, to induce a change in a macroscopic observable lies at the heart of nanodevices of the future. We report an experiment wherein a single superconducting flux quantum, or a fluxon, can be exploited to switch the resistance of a nanowire between two discrete values. The experimental geometry consists of centimeter-long nanowires of superconducting Ga-In eutectic, with spontaneously formed Ga nanodroplets along the length of the nanowire. The nonzero resistance occurs when a Ga nanodroplet traps one or more superconducting fluxons, thereby driving a Josephson weak-link created by a second nearby Ga nanodroplet normal. The fluxons can be inserted or flipped by careful manipulation of the magnetic field or temperature to produce one of many metastable states of the system.

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More information

Accepted/In Press date: November 2014
Published date: 2015
Organisations: Optoelectronics Research Centre

Identifiers

Local EPrints ID: 374984
URI: http://eprints.soton.ac.uk/id/eprint/374984
ISSN: 1530-6984
PURE UUID: 728dda15-4219-4952-a7cb-85ab1218c1e1
ORCID for Pier J.A. Sazio: ORCID iD orcid.org/0000-0002-6506-9266

Catalogue record

Date deposited: 09 Mar 2015 11:16
Last modified: 17 Jul 2017 21:21

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Contributors

Author: Weiwei Zhao
Author: Jesse L. Bischof
Author: Jimmy Hutasoit
Author: Xin Liu
Author: Thomas C. Fitzgibbons
Author: John R. Hayes
Author: Pier J.A. Sazio ORCID iD
Author: Chaoxing Liu
Author: Jainendra K. Jain
Author: John V. Badding
Author: M.H.W. Chan

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