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In-situ magnetization/heating electron holography to study the magnetic ordering in arrays of nickel metallic nanowires

Magnetic nanostructures of different size, shape, and composition possess a great potential to improve current technologies like data storage and electromagnetic sensing. In thin ferromagnetic nanowires, their magnetization behavior is dominated by the competition between magnetocrystalline anisotro...

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Detalles Bibliográficos
Autores principales: Ortega, Eduardo, Santiago, Ulises, Giuliani, Jason G., Monton, Carlos, Ponce, Arturo
Formato: Online Artículo Texto
Lenguaje:English
Publicado: AIP Publishing LLC 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5760265/
https://www.ncbi.nlm.nih.gov/pubmed/29375931
http://dx.doi.org/10.1063/1.5007671
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author Ortega, Eduardo
Santiago, Ulises
Giuliani, Jason G.
Monton, Carlos
Ponce, Arturo
author_facet Ortega, Eduardo
Santiago, Ulises
Giuliani, Jason G.
Monton, Carlos
Ponce, Arturo
author_sort Ortega, Eduardo
collection PubMed
description Magnetic nanostructures of different size, shape, and composition possess a great potential to improve current technologies like data storage and electromagnetic sensing. In thin ferromagnetic nanowires, their magnetization behavior is dominated by the competition between magnetocrystalline anisotropy (related to the crystalline structure) and shape anisotropy. In this way electron diffraction methods like precession electron diffraction (PED) can be used to link the magnetic behavior observed by Electron Holography (EH) with its crystallinity. Using off-axis electron holography under Lorentz conditions, we can experimentally determine the magnetization distribution over neighboring nanostructures and their diamagnetic matrix. In the case of a single row of nickel nanowires within the alumina template, the thin TEM samples showed a dominant antiferromagnetic arrangement demonstrating long-range magnetostatic interactions playing a major role.
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spelling pubmed-57602652018-01-28 In-situ magnetization/heating electron holography to study the magnetic ordering in arrays of nickel metallic nanowires Ortega, Eduardo Santiago, Ulises Giuliani, Jason G. Monton, Carlos Ponce, Arturo AIP Adv THE 62ND MMM CONFERENCE PAPERS Magnetic nanostructures of different size, shape, and composition possess a great potential to improve current technologies like data storage and electromagnetic sensing. In thin ferromagnetic nanowires, their magnetization behavior is dominated by the competition between magnetocrystalline anisotropy (related to the crystalline structure) and shape anisotropy. In this way electron diffraction methods like precession electron diffraction (PED) can be used to link the magnetic behavior observed by Electron Holography (EH) with its crystallinity. Using off-axis electron holography under Lorentz conditions, we can experimentally determine the magnetization distribution over neighboring nanostructures and their diamagnetic matrix. In the case of a single row of nickel nanowires within the alumina template, the thin TEM samples showed a dominant antiferromagnetic arrangement demonstrating long-range magnetostatic interactions playing a major role. AIP Publishing LLC 2018-01-09 /pmc/articles/PMC5760265/ /pubmed/29375931 http://dx.doi.org/10.1063/1.5007671 Text en © 2018 Author(s). 2158-3226/2018/8(5)/056813/5/$0.00 All article content, except where otherwise noted, is licensed under a Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle THE 62ND MMM CONFERENCE PAPERS
Ortega, Eduardo
Santiago, Ulises
Giuliani, Jason G.
Monton, Carlos
Ponce, Arturo
In-situ magnetization/heating electron holography to study the magnetic ordering in arrays of nickel metallic nanowires
title In-situ magnetization/heating electron holography to study the magnetic ordering in arrays of nickel metallic nanowires
title_full In-situ magnetization/heating electron holography to study the magnetic ordering in arrays of nickel metallic nanowires
title_fullStr In-situ magnetization/heating electron holography to study the magnetic ordering in arrays of nickel metallic nanowires
title_full_unstemmed In-situ magnetization/heating electron holography to study the magnetic ordering in arrays of nickel metallic nanowires
title_short In-situ magnetization/heating electron holography to study the magnetic ordering in arrays of nickel metallic nanowires
title_sort in-situ magnetization/heating electron holography to study the magnetic ordering in arrays of nickel metallic nanowires
topic THE 62ND MMM CONFERENCE PAPERS
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5760265/
https://www.ncbi.nlm.nih.gov/pubmed/29375931
http://dx.doi.org/10.1063/1.5007671
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