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Magnetic Properties of FeNi-Based Thin Film Materials with Different Additives
This paper presents a study of FeNi-based thin film materials deposited with Mo, Al and B using a co-sputtering process. The existence of soft magnetic properties in combination with strong magneto-mechanical coupling makes these materials attractive for sensor applications. Our findings show that F...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2014
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4264354/ https://www.ncbi.nlm.nih.gov/pubmed/25587418 http://dx.doi.org/10.3390/bios4030189 |
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author | Liang, Cai Gooneratne, Chinthaka P. Wang, Qing Xiao Liu, Yang Gianchandani, Yogesh Kosel, Jurgen |
author_facet | Liang, Cai Gooneratne, Chinthaka P. Wang, Qing Xiao Liu, Yang Gianchandani, Yogesh Kosel, Jurgen |
author_sort | Liang, Cai |
collection | PubMed |
description | This paper presents a study of FeNi-based thin film materials deposited with Mo, Al and B using a co-sputtering process. The existence of soft magnetic properties in combination with strong magneto-mechanical coupling makes these materials attractive for sensor applications. Our findings show that FeNi deposited with Mo or Al yields magnetically soft materials and that depositing with B further increases the softness. The out-of-plane magnetic anisotropy of FeNi thin films is reduced by depositing with Al and completely removed by depositing with B. The effect of depositing with Mo is dependent on the Mo concentration. The coercivity of FeNiMo and FeNiAl is reduced to less than a half of that of FeNi, and a value as low as 40 A/m is obtained for FeNiB. The surfaces of the obtained FeNiMo, FeNiAl and FeNiB thin films reveal very different morphologies. The surface of FeNiMo shows nano-cracks, while the FeNiAl films show large clusters and fewer nano-cracks. When FeNi is deposited with B, a very smooth morphology is obtained. The crystal structure of FeNiMo strongly depends on the depositant concentration and changes into an amorphous structure at a higher Mo level. FeNiAl thin films remain polycrystalline, even at a very high concentration of Al, and FeNiB films are amorphous, even at a very low concentration of B. |
format | Online Article Text |
id | pubmed-4264354 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2014 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-42643542015-01-13 Magnetic Properties of FeNi-Based Thin Film Materials with Different Additives Liang, Cai Gooneratne, Chinthaka P. Wang, Qing Xiao Liu, Yang Gianchandani, Yogesh Kosel, Jurgen Biosensors (Basel) Article This paper presents a study of FeNi-based thin film materials deposited with Mo, Al and B using a co-sputtering process. The existence of soft magnetic properties in combination with strong magneto-mechanical coupling makes these materials attractive for sensor applications. Our findings show that FeNi deposited with Mo or Al yields magnetically soft materials and that depositing with B further increases the softness. The out-of-plane magnetic anisotropy of FeNi thin films is reduced by depositing with Al and completely removed by depositing with B. The effect of depositing with Mo is dependent on the Mo concentration. The coercivity of FeNiMo and FeNiAl is reduced to less than a half of that of FeNi, and a value as low as 40 A/m is obtained for FeNiB. The surfaces of the obtained FeNiMo, FeNiAl and FeNiB thin films reveal very different morphologies. The surface of FeNiMo shows nano-cracks, while the FeNiAl films show large clusters and fewer nano-cracks. When FeNi is deposited with B, a very smooth morphology is obtained. The crystal structure of FeNiMo strongly depends on the depositant concentration and changes into an amorphous structure at a higher Mo level. FeNiAl thin films remain polycrystalline, even at a very high concentration of Al, and FeNiB films are amorphous, even at a very low concentration of B. MDPI 2014-07-04 /pmc/articles/PMC4264354/ /pubmed/25587418 http://dx.doi.org/10.3390/bios4030189 Text en © 2014 by the authors; licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/3.0/). |
spellingShingle | Article Liang, Cai Gooneratne, Chinthaka P. Wang, Qing Xiao Liu, Yang Gianchandani, Yogesh Kosel, Jurgen Magnetic Properties of FeNi-Based Thin Film Materials with Different Additives |
title | Magnetic Properties of FeNi-Based Thin Film Materials with Different Additives |
title_full | Magnetic Properties of FeNi-Based Thin Film Materials with Different Additives |
title_fullStr | Magnetic Properties of FeNi-Based Thin Film Materials with Different Additives |
title_full_unstemmed | Magnetic Properties of FeNi-Based Thin Film Materials with Different Additives |
title_short | Magnetic Properties of FeNi-Based Thin Film Materials with Different Additives |
title_sort | magnetic properties of feni-based thin film materials with different additives |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4264354/ https://www.ncbi.nlm.nih.gov/pubmed/25587418 http://dx.doi.org/10.3390/bios4030189 |
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