High Field Linear Magnetoresistance Sensors with Perpendicular Anisotropy L10-FePt Reference Layer

High field linear magnetoresistance is an important feature for magnetic sensors applied in magnetic levitating train and high field positioning measurements. Here, we investigate linear magnetoresistance in Pt/FePt/ZnO/Fe/Pt multilayer magnetic sensor, where FePt and Fe ferromagnetic layers exhibit...

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Main Authors: X. Liu, Z. L. Song, R. Wang, Z. Y. Quan
Format: Article
Language:English
Published: Wiley 2016-01-01
Series:Advances in Condensed Matter Physics
Online Access:http://dx.doi.org/10.1155/2016/8528617
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author X. Liu
Z. L. Song
R. Wang
Z. Y. Quan
author_facet X. Liu
Z. L. Song
R. Wang
Z. Y. Quan
author_sort X. Liu
collection DOAJ
description High field linear magnetoresistance is an important feature for magnetic sensors applied in magnetic levitating train and high field positioning measurements. Here, we investigate linear magnetoresistance in Pt/FePt/ZnO/Fe/Pt multilayer magnetic sensor, where FePt and Fe ferromagnetic layers exhibit out-of-plane and in-plane magnetic anisotropy, respectively. Perpendicular anisotropy L10-FePt reference layer with large coercivity and high squareness ratio was obtained by in situ substrate heating. Linear magnetoresistance is observed in this sensor in a large range between +5 kOe and −5 kOe with the current parallel to the film plane. This L10-FePt based sensor is significant for the expansion of linear range and the simplification of preparation for future high field magnetic sensors.
format Article
id doaj-art-5a683ab3ee0846dca81e560c2640d945
institution Kabale University
issn 1687-8108
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language English
publishDate 2016-01-01
publisher Wiley
record_format Article
series Advances in Condensed Matter Physics
spelling doaj-art-5a683ab3ee0846dca81e560c2640d9452025-02-03T01:31:08ZengWileyAdvances in Condensed Matter Physics1687-81081687-81242016-01-01201610.1155/2016/85286178528617High Field Linear Magnetoresistance Sensors with Perpendicular Anisotropy L10-FePt Reference LayerX. Liu0Z. L. Song1R. Wang2Z. Y. Quan3Key Laboratory of Magnetic Molecules and Magnetic Information Materials of Ministry of Education and School of Chemistry and Materials Science, Shanxi Normal University, Linfen 041004, ChinaKey Laboratory of Magnetic Molecules and Magnetic Information Materials of Ministry of Education and School of Chemistry and Materials Science, Shanxi Normal University, Linfen 041004, ChinaKey Laboratory of Magnetic Molecules and Magnetic Information Materials of Ministry of Education and School of Chemistry and Materials Science, Shanxi Normal University, Linfen 041004, ChinaKey Laboratory of Magnetic Molecules and Magnetic Information Materials of Ministry of Education and School of Chemistry and Materials Science, Shanxi Normal University, Linfen 041004, ChinaHigh field linear magnetoresistance is an important feature for magnetic sensors applied in magnetic levitating train and high field positioning measurements. Here, we investigate linear magnetoresistance in Pt/FePt/ZnO/Fe/Pt multilayer magnetic sensor, where FePt and Fe ferromagnetic layers exhibit out-of-plane and in-plane magnetic anisotropy, respectively. Perpendicular anisotropy L10-FePt reference layer with large coercivity and high squareness ratio was obtained by in situ substrate heating. Linear magnetoresistance is observed in this sensor in a large range between +5 kOe and −5 kOe with the current parallel to the film plane. This L10-FePt based sensor is significant for the expansion of linear range and the simplification of preparation for future high field magnetic sensors.http://dx.doi.org/10.1155/2016/8528617
spellingShingle X. Liu
Z. L. Song
R. Wang
Z. Y. Quan
High Field Linear Magnetoresistance Sensors with Perpendicular Anisotropy L10-FePt Reference Layer
Advances in Condensed Matter Physics
title High Field Linear Magnetoresistance Sensors with Perpendicular Anisotropy L10-FePt Reference Layer
title_full High Field Linear Magnetoresistance Sensors with Perpendicular Anisotropy L10-FePt Reference Layer
title_fullStr High Field Linear Magnetoresistance Sensors with Perpendicular Anisotropy L10-FePt Reference Layer
title_full_unstemmed High Field Linear Magnetoresistance Sensors with Perpendicular Anisotropy L10-FePt Reference Layer
title_short High Field Linear Magnetoresistance Sensors with Perpendicular Anisotropy L10-FePt Reference Layer
title_sort high field linear magnetoresistance sensors with perpendicular anisotropy l10 fept reference layer
url http://dx.doi.org/10.1155/2016/8528617
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AT zlsong highfieldlinearmagnetoresistancesensorswithperpendicularanisotropyl10feptreferencelayer
AT rwang highfieldlinearmagnetoresistancesensorswithperpendicularanisotropyl10feptreferencelayer
AT zyquan highfieldlinearmagnetoresistancesensorswithperpendicularanisotropyl10feptreferencelayer