Cargando…

Biologically encoded magnonics

Spin wave logic circuits using quantum oscillations of spins (magnons) as carriers of information have been proposed for next generation computing with reduced energy demands and the benefit of easy parallelization. Current realizations of magnonic devices have micrometer sized patterns. Here we dem...

Descripción completa

Detalles Bibliográficos
Autores principales: Zingsem, Benjamin W., Feggeler, Thomas, Terwey, Alexandra, Ghaisari, Sara, Spoddig, Detlef, Faivre, Damien, Meckenstock, Ralf, Farle, Michael, Winklhofer, Michael
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6761176/
https://www.ncbi.nlm.nih.gov/pubmed/31554798
http://dx.doi.org/10.1038/s41467-019-12219-0
_version_ 1783453971560529920
author Zingsem, Benjamin W.
Feggeler, Thomas
Terwey, Alexandra
Ghaisari, Sara
Spoddig, Detlef
Faivre, Damien
Meckenstock, Ralf
Farle, Michael
Winklhofer, Michael
author_facet Zingsem, Benjamin W.
Feggeler, Thomas
Terwey, Alexandra
Ghaisari, Sara
Spoddig, Detlef
Faivre, Damien
Meckenstock, Ralf
Farle, Michael
Winklhofer, Michael
author_sort Zingsem, Benjamin W.
collection PubMed
description Spin wave logic circuits using quantum oscillations of spins (magnons) as carriers of information have been proposed for next generation computing with reduced energy demands and the benefit of easy parallelization. Current realizations of magnonic devices have micrometer sized patterns. Here we demonstrate the feasibility of biogenic nanoparticle chains as the first step to truly nanoscale magnonics at room temperature. Our measurements on magnetosome chains (ca 12 magnetite crystals with 35 nm particle size each), combined with micromagnetic simulations, show that the topology of the magnon bands, namely anisotropy, band deformation, and band gaps are determined by local arrangement and orientation of particles, which in turn depends on the genotype of the bacteria. Our biomagnonic approach offers the exciting prospect of genetically engineering magnonic quantum states in nanoconfined geometries. By connecting mutants of magnetotactic bacteria with different arrangements of magnetite crystals, novel architectures for magnonic computing may be (self-) assembled.
format Online
Article
Text
id pubmed-6761176
institution National Center for Biotechnology Information
language English
publishDate 2019
publisher Nature Publishing Group UK
record_format MEDLINE/PubMed
spelling pubmed-67611762019-09-27 Biologically encoded magnonics Zingsem, Benjamin W. Feggeler, Thomas Terwey, Alexandra Ghaisari, Sara Spoddig, Detlef Faivre, Damien Meckenstock, Ralf Farle, Michael Winklhofer, Michael Nat Commun Article Spin wave logic circuits using quantum oscillations of spins (magnons) as carriers of information have been proposed for next generation computing with reduced energy demands and the benefit of easy parallelization. Current realizations of magnonic devices have micrometer sized patterns. Here we demonstrate the feasibility of biogenic nanoparticle chains as the first step to truly nanoscale magnonics at room temperature. Our measurements on magnetosome chains (ca 12 magnetite crystals with 35 nm particle size each), combined with micromagnetic simulations, show that the topology of the magnon bands, namely anisotropy, band deformation, and band gaps are determined by local arrangement and orientation of particles, which in turn depends on the genotype of the bacteria. Our biomagnonic approach offers the exciting prospect of genetically engineering magnonic quantum states in nanoconfined geometries. By connecting mutants of magnetotactic bacteria with different arrangements of magnetite crystals, novel architectures for magnonic computing may be (self-) assembled. Nature Publishing Group UK 2019-09-25 /pmc/articles/PMC6761176/ /pubmed/31554798 http://dx.doi.org/10.1038/s41467-019-12219-0 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
Zingsem, Benjamin W.
Feggeler, Thomas
Terwey, Alexandra
Ghaisari, Sara
Spoddig, Detlef
Faivre, Damien
Meckenstock, Ralf
Farle, Michael
Winklhofer, Michael
Biologically encoded magnonics
title Biologically encoded magnonics
title_full Biologically encoded magnonics
title_fullStr Biologically encoded magnonics
title_full_unstemmed Biologically encoded magnonics
title_short Biologically encoded magnonics
title_sort biologically encoded magnonics
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6761176/
https://www.ncbi.nlm.nih.gov/pubmed/31554798
http://dx.doi.org/10.1038/s41467-019-12219-0
work_keys_str_mv AT zingsembenjaminw biologicallyencodedmagnonics
AT feggelerthomas biologicallyencodedmagnonics
AT terweyalexandra biologicallyencodedmagnonics
AT ghaisarisara biologicallyencodedmagnonics
AT spoddigdetlef biologicallyencodedmagnonics
AT faivredamien biologicallyencodedmagnonics
AT meckenstockralf biologicallyencodedmagnonics
AT farlemichael biologicallyencodedmagnonics
AT winklhofermichael biologicallyencodedmagnonics