Hydrogenation Effect on Interlayer Coupling and Magneto-Transport Properties of Pd/Co/Mg/Fe Multilayers

Li Jie Liaw; Zi Qi Liu; Po Wei Chen; Shi Yu Liu; Alltrin Dhanarajagopal; Fang Yuh Lo; Jhen Yong Hong; Wen Chin Lin

doi:10.1021/acsomega.3c01778

Hydrogenation Effect on Interlayer Coupling and Magneto-Transport Properties of Pd/Co/Mg/Fe Multilayers

Li Jie Liaw, Zi Qi Liu, Po Wei Chen, Shi Yu Liu, Alltrin Dhanarajagopal, Fang Yuh Lo, Jhen Yong Hong^*, Wen Chin Lin^*

^*Corresponding author for this work

Department of Physics

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

5 Citations (Scopus)

Abstract

Hydrogenation-induced modification of magnetic properties has been widely studied. A Mg spacer layer with high hydrogen storage stability was clamped in a Pd/Co/Mg/Fe multilayer structure to enhance its hydrogen storage stability and explore the structure’s magneto-transport properties. After 1 bar hydrogen exposure, the formation of a stable MgH₂ phase was demonstrated in an ambient environment at room temperature through X-ray diffraction. Lower magnetic coupling and enhanced magnetoresistance, compared to those of the as-grown sample, were observed using the longitudinal magneto-optical Kerr effect and a four-probe measurement. In this study, the hydrogenation stability of ferromagnetic multilayers was improved, and the concept of a hydrogenation-based spintronic device was developed.

Original language	English
Pages (from-to)	26948-26954
Number of pages	7
Journal	ACS Omega
Volume	8
Issue number	30
DOIs	https://doi.org/10.1021/acsomega.3c01778
Publication status	Published - 2023 Aug 1

ASJC Scopus subject areas

General Chemistry
General Chemical Engineering

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10.1021/acsomega.3c01778

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title = "Hydrogenation Effect on Interlayer Coupling and Magneto-Transport Properties of Pd/Co/Mg/Fe Multilayers",

abstract = "Hydrogenation-induced modification of magnetic properties has been widely studied. A Mg spacer layer with high hydrogen storage stability was clamped in a Pd/Co/Mg/Fe multilayer structure to enhance its hydrogen storage stability and explore the structure{\textquoteright}s magneto-transport properties. After 1 bar hydrogen exposure, the formation of a stable MgH2 phase was demonstrated in an ambient environment at room temperature through X-ray diffraction. Lower magnetic coupling and enhanced magnetoresistance, compared to those of the as-grown sample, were observed using the longitudinal magneto-optical Kerr effect and a four-probe measurement. In this study, the hydrogenation stability of ferromagnetic multilayers was improved, and the concept of a hydrogenation-based spintronic device was developed.",

author = "Liaw, {Li Jie} and Liu, {Zi Qi} and Chen, {Po Wei} and Liu, {Shi Yu} and Alltrin Dhanarajagopal and Lo, {Fang Yuh} and Hong, {Jhen Yong} and Lin, {Wen Chin}",

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T1 - Hydrogenation Effect on Interlayer Coupling and Magneto-Transport Properties of Pd/Co/Mg/Fe Multilayers

AU - Liaw, Li Jie

AU - Liu, Zi Qi

AU - Chen, Po Wei

AU - Liu, Shi Yu

AU - Dhanarajagopal, Alltrin

AU - Lo, Fang Yuh

AU - Hong, Jhen Yong

AU - Lin, Wen Chin

PY - 2023/8/1

Y1 - 2023/8/1

N2 - Hydrogenation-induced modification of magnetic properties has been widely studied. A Mg spacer layer with high hydrogen storage stability was clamped in a Pd/Co/Mg/Fe multilayer structure to enhance its hydrogen storage stability and explore the structure’s magneto-transport properties. After 1 bar hydrogen exposure, the formation of a stable MgH2 phase was demonstrated in an ambient environment at room temperature through X-ray diffraction. Lower magnetic coupling and enhanced magnetoresistance, compared to those of the as-grown sample, were observed using the longitudinal magneto-optical Kerr effect and a four-probe measurement. In this study, the hydrogenation stability of ferromagnetic multilayers was improved, and the concept of a hydrogenation-based spintronic device was developed.

AB - Hydrogenation-induced modification of magnetic properties has been widely studied. A Mg spacer layer with high hydrogen storage stability was clamped in a Pd/Co/Mg/Fe multilayer structure to enhance its hydrogen storage stability and explore the structure’s magneto-transport properties. After 1 bar hydrogen exposure, the formation of a stable MgH2 phase was demonstrated in an ambient environment at room temperature through X-ray diffraction. Lower magnetic coupling and enhanced magnetoresistance, compared to those of the as-grown sample, were observed using the longitudinal magneto-optical Kerr effect and a four-probe measurement. In this study, the hydrogenation stability of ferromagnetic multilayers was improved, and the concept of a hydrogenation-based spintronic device was developed.

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Hydrogenation Effect on Interlayer Coupling and Magneto-Transport Properties of Pd/Co/Mg/Fe Multilayers

Abstract

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