Ultrahigh anomalous hall sensitivity in Co/Pt multilayers by interfacial modification

A large enhancement of anomalous Hall sensitivity (Sv) by metal/oxide interfacial modification is obtained in a MgO/[Co/Pt]3/MgO multilayered structure. The values of Sv are increased to 8363 V/A·T by CoO insertion and 2261 V/A·T by Pt insertion, while Sv is approximately 1000 V/A·T in normal Hall s...

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Main Authors: Zhang, J, Yang, G, Wang, S, Zhang, S, Zhang, P, Cao, X, Jiang, S, Zhao, C, Liu, Y, Wang, H, Yu, G
Format: Journal article
Language:English
Published: 2013
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author Zhang, J
Yang, G
Wang, S
Zhang, S
Zhang, P
Cao, X
Jiang, S
Zhao, C
Liu, Y
Wang, H
Yu, G
author_facet Zhang, J
Yang, G
Wang, S
Zhang, S
Zhang, P
Cao, X
Jiang, S
Zhao, C
Liu, Y
Wang, H
Yu, G
author_sort Zhang, J
collection OXFORD
description A large enhancement of anomalous Hall sensitivity (Sv) by metal/oxide interfacial modification is obtained in a MgO/[Co/Pt]3/MgO multilayered structure. The values of Sv are increased to 8363 V/A·T by CoO insertion and 2261 V/A·T by Pt insertion, while Sv is approximately 1000 V/A·T in normal Hall semiconductor sensors. Microstructural analysis shows that the crystal orientation of [Co/Pt]3 multilayers is improved, and the oxygen concentration is largely changed by introducing an ultrathin CoO layer at metal/oxide interfaces, leading to a large increment of Sv. © 2013 The Japan Society of Applied Physics.
first_indexed 2024-03-07T01:23:37Z
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spelling oxford-uuid:91306627-e8d0-4ab9-93f4-d0e7215098bf2022-03-26T23:17:08ZUltrahigh anomalous hall sensitivity in Co/Pt multilayers by interfacial modificationJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:91306627-e8d0-4ab9-93f4-d0e7215098bfEnglishSymplectic Elements at Oxford2013Zhang, JYang, GWang, SZhang, SZhang, PCao, XJiang, SZhao, CLiu, YWang, HYu, GA large enhancement of anomalous Hall sensitivity (Sv) by metal/oxide interfacial modification is obtained in a MgO/[Co/Pt]3/MgO multilayered structure. The values of Sv are increased to 8363 V/A·T by CoO insertion and 2261 V/A·T by Pt insertion, while Sv is approximately 1000 V/A·T in normal Hall semiconductor sensors. Microstructural analysis shows that the crystal orientation of [Co/Pt]3 multilayers is improved, and the oxygen concentration is largely changed by introducing an ultrathin CoO layer at metal/oxide interfaces, leading to a large increment of Sv. © 2013 The Japan Society of Applied Physics.
spellingShingle Zhang, J
Yang, G
Wang, S
Zhang, S
Zhang, P
Cao, X
Jiang, S
Zhao, C
Liu, Y
Wang, H
Yu, G
Ultrahigh anomalous hall sensitivity in Co/Pt multilayers by interfacial modification
title Ultrahigh anomalous hall sensitivity in Co/Pt multilayers by interfacial modification
title_full Ultrahigh anomalous hall sensitivity in Co/Pt multilayers by interfacial modification
title_fullStr Ultrahigh anomalous hall sensitivity in Co/Pt multilayers by interfacial modification
title_full_unstemmed Ultrahigh anomalous hall sensitivity in Co/Pt multilayers by interfacial modification
title_short Ultrahigh anomalous hall sensitivity in Co/Pt multilayers by interfacial modification
title_sort ultrahigh anomalous hall sensitivity in co pt multilayers by interfacial modification
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