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Magnetic field sensors using arrays of electrospun magnetoelectric Janus nanowires
The fabrication and characterization of the first magnetoelectric sensors utilizing arrays of Janus magnetoelectric composite nanowires composed of barium titanate and cobalt ferrite are presented. By utilizing magnetoelectric nanowires suspended across electrodes above the substrate, substrate clam...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2018
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6277440/ https://www.ncbi.nlm.nih.gov/pubmed/31057925 http://dx.doi.org/10.1038/s41378-018-0038-x |
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author | Bauer, Matthew J. Wen, Xiao Tiwari, Prabal Arnold, David P. Andrew, Jennifer S. |
author_facet | Bauer, Matthew J. Wen, Xiao Tiwari, Prabal Arnold, David P. Andrew, Jennifer S. |
author_sort | Bauer, Matthew J. |
collection | PubMed |
description | The fabrication and characterization of the first magnetoelectric sensors utilizing arrays of Janus magnetoelectric composite nanowires composed of barium titanate and cobalt ferrite are presented. By utilizing magnetoelectric nanowires suspended across electrodes above the substrate, substrate clamping is reduced when compared to layered thin-film architectures; this results in enhanced magnetoelectric coupling. Janus magnetoelectric nanowires are fabricated by sol–gel electrospinning, and their length is controlled through the electrospinning and calcination conditions. Using a directed nanomanufacturing approach, the nanowires are then assembled onto pre-patterned metal electrodes on a silicon substrate using dielectrophoresis. Using this process, functional magnetic field sensors are formed by connecting many nanowires in parallel. The observed magnetic field sensitivity from the parallel array of nanowires is 0.514 ± .027 mV Oe(−1) at 1 kHz, which translates to a magnetoelectric coefficient of 514 ± 27 mV cm(−1) Oe(−1). |
format | Online Article Text |
id | pubmed-6277440 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-62774402019-05-03 Magnetic field sensors using arrays of electrospun magnetoelectric Janus nanowires Bauer, Matthew J. Wen, Xiao Tiwari, Prabal Arnold, David P. Andrew, Jennifer S. Microsyst Nanoeng Article The fabrication and characterization of the first magnetoelectric sensors utilizing arrays of Janus magnetoelectric composite nanowires composed of barium titanate and cobalt ferrite are presented. By utilizing magnetoelectric nanowires suspended across electrodes above the substrate, substrate clamping is reduced when compared to layered thin-film architectures; this results in enhanced magnetoelectric coupling. Janus magnetoelectric nanowires are fabricated by sol–gel electrospinning, and their length is controlled through the electrospinning and calcination conditions. Using a directed nanomanufacturing approach, the nanowires are then assembled onto pre-patterned metal electrodes on a silicon substrate using dielectrophoresis. Using this process, functional magnetic field sensors are formed by connecting many nanowires in parallel. The observed magnetic field sensitivity from the parallel array of nanowires is 0.514 ± .027 mV Oe(−1) at 1 kHz, which translates to a magnetoelectric coefficient of 514 ± 27 mV cm(−1) Oe(−1). Nature Publishing Group UK 2018-12-03 /pmc/articles/PMC6277440/ /pubmed/31057925 http://dx.doi.org/10.1038/s41378-018-0038-x Text en © The Author(s) 2018 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 Bauer, Matthew J. Wen, Xiao Tiwari, Prabal Arnold, David P. Andrew, Jennifer S. Magnetic field sensors using arrays of electrospun magnetoelectric Janus nanowires |
title | Magnetic field sensors using arrays of electrospun magnetoelectric Janus nanowires |
title_full | Magnetic field sensors using arrays of electrospun magnetoelectric Janus nanowires |
title_fullStr | Magnetic field sensors using arrays of electrospun magnetoelectric Janus nanowires |
title_full_unstemmed | Magnetic field sensors using arrays of electrospun magnetoelectric Janus nanowires |
title_short | Magnetic field sensors using arrays of electrospun magnetoelectric Janus nanowires |
title_sort | magnetic field sensors using arrays of electrospun magnetoelectric janus nanowires |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6277440/ https://www.ncbi.nlm.nih.gov/pubmed/31057925 http://dx.doi.org/10.1038/s41378-018-0038-x |
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