Multi-resistance state tuned by interfacial active Pt layer in a perpendicular Hall balance

Jingyan Zhang; Pengwei Dou; Wenlin Peng; Yuan Zhuang; Jialong Liu; Amit Kohn; Eran Amsellem; Caiyin You; Jiaqiang Liu; Xinqi Zheng; Guanghua Yu; Yong Jiang; Shouguo Wang

doi:10.1016/j.apsusc.2020.146475

Multi-resistance state tuned by interfacial active Pt layer in a perpendicular Hall balance

Jingyan Zhang, Pengwei Dou, Wenlin Peng, Yuan Zhuang, Jialong Liu, Amit Kohn, Eran Amsellem, Caiyin You, Jiaqiang Liu, Xinqi Zheng, Guanghua Yu, Yong Jiang, Shouguo Wang^*

^*Corresponding author for this work

Department of Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

5 Scopus citations

Abstract

The effect of interfacial Pt layer on multi-resistance states in perpendicular Hall balance with core structure of [Co/Pt]_n/NiO/[Co/Pt]_n multilayers was systematically investigated. By inserting an ultrathin Pt layer between [Co/Pt]_n and NiO spacer, resistance states and the Hall resistance ratio (HRR) were successfully tuned. Our results indicate that the inserted ultrathin Pt layer plays a crucial role on spin dependent transport properties, achieving a HRR of up to 30,900%. Furthermore, the resistance in Hall balance can be smoothly altered among 2-, 3-, and 4-states by optimizing the ultrathin active Pt layer. Pt catalyst with high electronic activity, as measured by X-ray photoelectron spectroscopy (XPS), provides a novel approach for modifying the interfacial orbital hybridization, thus leading to a tunable resistance states and HRR value.

Original language	English
Article number	146475
Journal	Applied Surface Science
Volume	521
DOIs	https://doi.org/10.1016/j.apsusc.2020.146475
State	Published - 15 Aug 2020

Funding

Funders	Funder number
ISF-NSFC	51961145305, 3373/19
State Key Laboratory for Advanced Metals and Materials	2019Z-10
National Natural Science Foundation of China	51625101, 11874082, 51971026
Natural Science Foundation of Beijing Municipality	Z190007
National Key Research and Development Program of China	2019YFB2005800
Fundamental Research Funds for the Central Universities	FRF-TP-16-001C2
Higher Education Discipline Innovation Project

Keywords

Hall balance
Hall resistance ratio
Interfacial hybridization
Perpendicular magnetic anisotropy

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10.1016/j.apsusc.2020.146475

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title = "Multi-resistance state tuned by interfacial active Pt layer in a perpendicular Hall balance",

abstract = "The effect of interfacial Pt layer on multi-resistance states in perpendicular Hall balance with core structure of [Co/Pt]n/NiO/[Co/Pt]n multilayers was systematically investigated. By inserting an ultrathin Pt layer between [Co/Pt]n and NiO spacer, resistance states and the Hall resistance ratio (HRR) were successfully tuned. Our results indicate that the inserted ultrathin Pt layer plays a crucial role on spin dependent transport properties, achieving a HRR of up to 30,900%. Furthermore, the resistance in Hall balance can be smoothly altered among 2-, 3-, and 4-states by optimizing the ultrathin active Pt layer. Pt catalyst with high electronic activity, as measured by X-ray photoelectron spectroscopy (XPS), provides a novel approach for modifying the interfacial orbital hybridization, thus leading to a tunable resistance states and HRR value.",

keywords = "Hall balance, Hall resistance ratio, Interfacial hybridization, Perpendicular magnetic anisotropy",

author = "Jingyan Zhang and Pengwei Dou and Wenlin Peng and Yuan Zhuang and Jialong Liu and Amit Kohn and Eran Amsellem and Caiyin You and Jiaqiang Liu and Xinqi Zheng and Guanghua Yu and Yong Jiang and Shouguo Wang",

note = "Publisher Copyright: {\textcopyright} 2020",

year = "2020",

month = aug,

day = "15",

doi = "10.1016/j.apsusc.2020.146475",

language = "אנגלית",

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journal = "Applied Surface Science",

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TY - JOUR

T1 - Multi-resistance state tuned by interfacial active Pt layer in a perpendicular Hall balance

AU - Zhang, Jingyan

AU - Dou, Pengwei

AU - Peng, Wenlin

AU - Zhuang, Yuan

AU - Liu, Jialong

AU - Kohn, Amit

AU - Amsellem, Eran

AU - You, Caiyin

AU - Liu, Jiaqiang

AU - Zheng, Xinqi

AU - Yu, Guanghua

AU - Jiang, Yong

AU - Wang, Shouguo

PY - 2020/8/15

Y1 - 2020/8/15

N2 - The effect of interfacial Pt layer on multi-resistance states in perpendicular Hall balance with core structure of [Co/Pt]n/NiO/[Co/Pt]n multilayers was systematically investigated. By inserting an ultrathin Pt layer between [Co/Pt]n and NiO spacer, resistance states and the Hall resistance ratio (HRR) were successfully tuned. Our results indicate that the inserted ultrathin Pt layer plays a crucial role on spin dependent transport properties, achieving a HRR of up to 30,900%. Furthermore, the resistance in Hall balance can be smoothly altered among 2-, 3-, and 4-states by optimizing the ultrathin active Pt layer. Pt catalyst with high electronic activity, as measured by X-ray photoelectron spectroscopy (XPS), provides a novel approach for modifying the interfacial orbital hybridization, thus leading to a tunable resistance states and HRR value.

AB - The effect of interfacial Pt layer on multi-resistance states in perpendicular Hall balance with core structure of [Co/Pt]n/NiO/[Co/Pt]n multilayers was systematically investigated. By inserting an ultrathin Pt layer between [Co/Pt]n and NiO spacer, resistance states and the Hall resistance ratio (HRR) were successfully tuned. Our results indicate that the inserted ultrathin Pt layer plays a crucial role on spin dependent transport properties, achieving a HRR of up to 30,900%. Furthermore, the resistance in Hall balance can be smoothly altered among 2-, 3-, and 4-states by optimizing the ultrathin active Pt layer. Pt catalyst with high electronic activity, as measured by X-ray photoelectron spectroscopy (XPS), provides a novel approach for modifying the interfacial orbital hybridization, thus leading to a tunable resistance states and HRR value.

KW - Hall balance

KW - Hall resistance ratio

KW - Interfacial hybridization

KW - Perpendicular magnetic anisotropy

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DO - 10.1016/j.apsusc.2020.146475

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VL - 521

JO - Applied Surface Science

JF - Applied Surface Science

M1 - 146475

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Multi-resistance state tuned by interfacial active Pt layer in a perpendicular Hall balance

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