Atomic-scale authentication with resonant tunneling diodes

Roberts, J., Bagci, I. E., Zawawi, M. A. M., Sexton, J., Hulbert, N., Noori, Y. J., Woodhead, C. S. ORCID: https://orcid.org/0000-0003-1342-0744, Missous, M., Migliorato, A., Roedig, U. and Young, R. J. 2016. Atomic-scale authentication with resonant tunneling diodes. MRS Advances 1 (22) , pp. 1625-1629. 10.1557/adv.2016.156

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Abstract

The room temperature electronic characteristics of resonant tunneling diodes (RTDs) containing AlAs/InGaAs quantum wells are studied. Differences in the peak current and voltages, associated with device-to-device variations in the structure and width of the quantum well are analyzed. A method to use these differences between devices is introduced and shown to uniquely identify each of the individual devices under test. This investigation shows that quantum confinement in RTDs allows them to operate as physical unclonable functions.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Physics and Astronomy
Publisher:	Cambridge University Press (CUP)
ISSN:	2059-8521
Last Modified:	09 Nov 2022 10:57
URI:	https://orca.cardiff.ac.uk/id/eprint/141241

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