Enhanced film thickness for Néel wall in soft magnetic film by introducing strong magnetocrystalline anisotropy

This study investigated the magnetic domain walls in a single-layer soft magnetic film with strong magnetocrystalline anisotropy energy. The soft magnetic film is composed of a highly c-axis-oriented hcp-Co(81)Ir(19) alloy with strong negative magnetocrystalline anisotropy. The domain structure of t...

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Detalles Bibliográficos
Autores principales: Xu, Fei, Wang, Tao, Ma, Tianyong, Wang, Ying, Zhu, Shimeng, Li, Fashen
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2016
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4731761/
https://www.ncbi.nlm.nih.gov/pubmed/26821614
http://dx.doi.org/10.1038/srep20140
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author Xu, Fei
Wang, Tao
Ma, Tianyong
Wang, Ying
Zhu, Shimeng
Li, Fashen
author_facet Xu, Fei
Wang, Tao
Ma, Tianyong
Wang, Ying
Zhu, Shimeng
Li, Fashen
author_sort Xu, Fei
collection PubMed
description This study investigated the magnetic domain walls in a single-layer soft magnetic film with strong magnetocrystalline anisotropy energy. The soft magnetic film is composed of a highly c-axis-oriented hcp-Co(81)Ir(19) alloy with strong negative magnetocrystalline anisotropy. The domain structure of the soft Co(81)Ir(19) films with thickness ranging from 50–230 nm in a demagnetization state was observed through magnetic force microscopy and Lorentz transmission electron microscopy. Results reveal that the critical transition thickness at which the domain wall changes from Néel type to Bloch type is about 138 nm, which is much larger than the critical value of traditional Fe- and Co-based soft magnetic films with negligible magnetocrystalline anisotropy. Theoretical calculation was also performed and the calculated result agrees well with experimental data.
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spelling pubmed-47317612016-02-03 Enhanced film thickness for Néel wall in soft magnetic film by introducing strong magnetocrystalline anisotropy Xu, Fei Wang, Tao Ma, Tianyong Wang, Ying Zhu, Shimeng Li, Fashen Sci Rep Article This study investigated the magnetic domain walls in a single-layer soft magnetic film with strong magnetocrystalline anisotropy energy. The soft magnetic film is composed of a highly c-axis-oriented hcp-Co(81)Ir(19) alloy with strong negative magnetocrystalline anisotropy. The domain structure of the soft Co(81)Ir(19) films with thickness ranging from 50–230 nm in a demagnetization state was observed through magnetic force microscopy and Lorentz transmission electron microscopy. Results reveal that the critical transition thickness at which the domain wall changes from Néel type to Bloch type is about 138 nm, which is much larger than the critical value of traditional Fe- and Co-based soft magnetic films with negligible magnetocrystalline anisotropy. Theoretical calculation was also performed and the calculated result agrees well with experimental data. Nature Publishing Group 2016-01-29 /pmc/articles/PMC4731761/ /pubmed/26821614 http://dx.doi.org/10.1038/srep20140 Text en Copyright © 2016, Macmillan Publishers Limited http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
spellingShingle Article
Xu, Fei
Wang, Tao
Ma, Tianyong
Wang, Ying
Zhu, Shimeng
Li, Fashen
Enhanced film thickness for Néel wall in soft magnetic film by introducing strong magnetocrystalline anisotropy
title Enhanced film thickness for Néel wall in soft magnetic film by introducing strong magnetocrystalline anisotropy
title_full Enhanced film thickness for Néel wall in soft magnetic film by introducing strong magnetocrystalline anisotropy
title_fullStr Enhanced film thickness for Néel wall in soft magnetic film by introducing strong magnetocrystalline anisotropy
title_full_unstemmed Enhanced film thickness for Néel wall in soft magnetic film by introducing strong magnetocrystalline anisotropy
title_short Enhanced film thickness for Néel wall in soft magnetic film by introducing strong magnetocrystalline anisotropy
title_sort enhanced film thickness for néel wall in soft magnetic film by introducing strong magnetocrystalline anisotropy
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4731761/
https://www.ncbi.nlm.nih.gov/pubmed/26821614
http://dx.doi.org/10.1038/srep20140
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