Omnidirectional zero-field ferromagnetic resonance driven by rotatable anisotropy in FeNi/FeMn bilayers without exchange bias

In this work, the zero- field GHz frequency permeability spectra and the rotatable anisotropy of FeMn/FeNi bilayers are investigated. Omnidirectional zero-field ferromagnetic resonance (FMR) driven by rotatable anisotropy can be achieved in the FeMn/FeNi bilayers without exchange bias. Instead of un...

Descripción completa

Detalles Bibliográficos
Autores principales: Wang, Wenfeng, Chai, Guozhi, Xue, Desheng
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2017
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5431087/
https://www.ncbi.nlm.nih.gov/pubmed/28465579
http://dx.doi.org/10.1038/s41598-017-01639-x
_version_ 1783236361495511040
author Wang, Wenfeng
Chai, Guozhi
Xue, Desheng
author_facet Wang, Wenfeng
Chai, Guozhi
Xue, Desheng
author_sort Wang, Wenfeng
collection PubMed
description In this work, the zero- field GHz frequency permeability spectra and the rotatable anisotropy of FeMn/FeNi bilayers are investigated. Omnidirectional zero-field ferromagnetic resonance (FMR) driven by rotatable anisotropy can be achieved in the FeMn/FeNi bilayers without exchange bias. Instead of uniaxial anisotropy and exchange bias field, it is the rotatable anisotropy field that dominates in the unbiased bilayer, due to the absence of the exchange bias. The quantitative analysis of exchange bias field, uniaxial anisotropy and rotatable anisotropy is discussed by comparing the dynamical and static magnetic properties of FeNi single layer, biased and unbiased FeMn/FeNi bilayers.
format Online
Article
Text
id pubmed-5431087
institution National Center for Biotechnology Information
language English
publishDate 2017
publisher Nature Publishing Group UK
record_format MEDLINE/PubMed
spelling pubmed-54310872017-05-16 Omnidirectional zero-field ferromagnetic resonance driven by rotatable anisotropy in FeNi/FeMn bilayers without exchange bias Wang, Wenfeng Chai, Guozhi Xue, Desheng Sci Rep Article In this work, the zero- field GHz frequency permeability spectra and the rotatable anisotropy of FeMn/FeNi bilayers are investigated. Omnidirectional zero-field ferromagnetic resonance (FMR) driven by rotatable anisotropy can be achieved in the FeMn/FeNi bilayers without exchange bias. Instead of uniaxial anisotropy and exchange bias field, it is the rotatable anisotropy field that dominates in the unbiased bilayer, due to the absence of the exchange bias. The quantitative analysis of exchange bias field, uniaxial anisotropy and rotatable anisotropy is discussed by comparing the dynamical and static magnetic properties of FeNi single layer, biased and unbiased FeMn/FeNi bilayers. Nature Publishing Group UK 2017-05-02 /pmc/articles/PMC5431087/ /pubmed/28465579 http://dx.doi.org/10.1038/s41598-017-01639-x Text en © The Author(s) 2017 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
Wang, Wenfeng
Chai, Guozhi
Xue, Desheng
Omnidirectional zero-field ferromagnetic resonance driven by rotatable anisotropy in FeNi/FeMn bilayers without exchange bias
title Omnidirectional zero-field ferromagnetic resonance driven by rotatable anisotropy in FeNi/FeMn bilayers without exchange bias
title_full Omnidirectional zero-field ferromagnetic resonance driven by rotatable anisotropy in FeNi/FeMn bilayers without exchange bias
title_fullStr Omnidirectional zero-field ferromagnetic resonance driven by rotatable anisotropy in FeNi/FeMn bilayers without exchange bias
title_full_unstemmed Omnidirectional zero-field ferromagnetic resonance driven by rotatable anisotropy in FeNi/FeMn bilayers without exchange bias
title_short Omnidirectional zero-field ferromagnetic resonance driven by rotatable anisotropy in FeNi/FeMn bilayers without exchange bias
title_sort omnidirectional zero-field ferromagnetic resonance driven by rotatable anisotropy in feni/femn bilayers without exchange bias
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5431087/
https://www.ncbi.nlm.nih.gov/pubmed/28465579
http://dx.doi.org/10.1038/s41598-017-01639-x
work_keys_str_mv AT wangwenfeng omnidirectionalzerofieldferromagneticresonancedrivenbyrotatableanisotropyinfenifemnbilayerswithoutexchangebias
AT chaiguozhi omnidirectionalzerofieldferromagneticresonancedrivenbyrotatableanisotropyinfenifemnbilayerswithoutexchangebias
AT xuedesheng omnidirectionalzerofieldferromagneticresonancedrivenbyrotatableanisotropyinfenifemnbilayerswithoutexchangebias

Ejemplares similares