Nanoscale true random bit generator based on magnetic state transitions in magnetic tunnel junctions

We present an investigation into the in-plane field induced free layer state transitions found in magnetic tunnel junctions. By applying an ac current into an integrated field antenna, the magnetisation of the free layer can be switched between the magnetic vortex state and the quasi-uniform anti-pa...

Descripción completa

Detalles Bibliográficos
Autores principales: Jenkins, Alex S., Alvarez, Lara San Emeterio, Freitas, Paulo P., Ferreira, Ricardo
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2019
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6821798/
https://www.ncbi.nlm.nih.gov/pubmed/31666671
http://dx.doi.org/10.1038/s41598-019-52236-z
_version_ 1783464203059724288
author Jenkins, Alex S.
Alvarez, Lara San Emeterio
Freitas, Paulo P.
Ferreira, Ricardo
author_facet Jenkins, Alex S.
Alvarez, Lara San Emeterio
Freitas, Paulo P.
Ferreira, Ricardo
author_sort Jenkins, Alex S.
collection PubMed
description We present an investigation into the in-plane field induced free layer state transitions found in magnetic tunnel junctions. By applying an ac current into an integrated field antenna, the magnetisation of the free layer can be switched between the magnetic vortex state and the quasi-uniform anti-parallel state. When in the magnetic vortex state, the vortex core gyrates a discrete number of times, and at certain frequencies there is a 50% chance of the core gyrating n or n − 1 times, leading to the proposal of a novel nanoscale continuous digital true random bit generator.
format Online
Article
Text
id pubmed-6821798
institution National Center for Biotechnology Information
language English
publishDate 2019
publisher Nature Publishing Group UK
record_format MEDLINE/PubMed
spelling pubmed-68217982019-11-05 Nanoscale true random bit generator based on magnetic state transitions in magnetic tunnel junctions Jenkins, Alex S. Alvarez, Lara San Emeterio Freitas, Paulo P. Ferreira, Ricardo Sci Rep Article We present an investigation into the in-plane field induced free layer state transitions found in magnetic tunnel junctions. By applying an ac current into an integrated field antenna, the magnetisation of the free layer can be switched between the magnetic vortex state and the quasi-uniform anti-parallel state. When in the magnetic vortex state, the vortex core gyrates a discrete number of times, and at certain frequencies there is a 50% chance of the core gyrating n or n − 1 times, leading to the proposal of a novel nanoscale continuous digital true random bit generator. Nature Publishing Group UK 2019-10-30 /pmc/articles/PMC6821798/ /pubmed/31666671 http://dx.doi.org/10.1038/s41598-019-52236-z Text en © The Author(s) 2019 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Jenkins, Alex S.
Alvarez, Lara San Emeterio
Freitas, Paulo P.
Ferreira, Ricardo
Nanoscale true random bit generator based on magnetic state transitions in magnetic tunnel junctions
title Nanoscale true random bit generator based on magnetic state transitions in magnetic tunnel junctions
title_full Nanoscale true random bit generator based on magnetic state transitions in magnetic tunnel junctions
title_fullStr Nanoscale true random bit generator based on magnetic state transitions in magnetic tunnel junctions
title_full_unstemmed Nanoscale true random bit generator based on magnetic state transitions in magnetic tunnel junctions
title_short Nanoscale true random bit generator based on magnetic state transitions in magnetic tunnel junctions
title_sort nanoscale true random bit generator based on magnetic state transitions in magnetic tunnel junctions
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6821798/
https://www.ncbi.nlm.nih.gov/pubmed/31666671
http://dx.doi.org/10.1038/s41598-019-52236-z
work_keys_str_mv AT jenkinsalexs nanoscaletruerandombitgeneratorbasedonmagneticstatetransitionsinmagnetictunneljunctions
AT alvarezlarasanemeterio nanoscaletruerandombitgeneratorbasedonmagneticstatetransitionsinmagnetictunneljunctions
AT freitaspaulop nanoscaletruerandombitgeneratorbasedonmagneticstatetransitionsinmagnetictunneljunctions
AT ferreiraricardo nanoscaletruerandombitgeneratorbasedonmagneticstatetransitionsinmagnetictunneljunctions

Ejemplares similares