Novel behaviors of coercivity in GdFeCo/Hf/MgO heterostructure

It is commonly known that the coercivity (Hc) of the rare-earth/transition-metal (RE–TM) compound is tuned based on the varying RE content as compared to the TM component. The drawback of this approach is that the Hc changes are permanent. In this work, we investigate the coercivity behaviors of the...

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Main Authors: Ngo, Trong Hai, V. S. Luong, Ramesh, Chandra Bhatt, Lin-Xiu Ye, Te-ho Wu, Lance Horng, Jong-Ching Wu
Format: Bài trích
Language:English
Published: AIP Publishing LLC 2022
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Online Access:https://aip.scitation.org/doi/10.1063/5.0086629
https://dlib.phenikaa-uni.edu.vn/handle/PNK/5944
https://doi.org/10.1063/5.0086629
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spelling oai:localhost:PNK-59442022-08-17T05:54:49Z Novel behaviors of coercivity in GdFeCo/Hf/MgO heterostructure Ngo, Trong Hai V. S. Luong Ramesh, Chandra Bhatt Lin-Xiu Ye Te-ho Wu Lance Horng Jong-Ching Wu GdFeCo/Hf/MgO Heterostructure It is commonly known that the coercivity (Hc) of the rare-earth/transition-metal (RE–TM) compound is tuned based on the varying RE content as compared to the TM component. The drawback of this approach is that the Hc changes are permanent. In this work, we investigate the coercivity behaviors of the GdFeCo/Hf/MgO heterostructure where the heavy metal Hf layer is inserted in the middle not only to convert charge current into spin current but also to prevent the oxygen diffusion effect. A strong geometry dependence of coercivity detected on Hall bar devices is attributed to the intrinsic properties of GdFeCo and elucidates that the oxidation issue from MgO on GdFeCo is prevented. 2022-07-13T02:00:02Z 2022-07-13T02:00:02Z 2022 Bài trích https://aip.scitation.org/doi/10.1063/5.0086629 https://dlib.phenikaa-uni.edu.vn/handle/PNK/5944 https://doi.org/10.1063/5.0086629 en AIP Publishing LLC
institution Digital Phenikaa
collection Digital Phenikaa
language English
topic GdFeCo/Hf/MgO
Heterostructure
spellingShingle GdFeCo/Hf/MgO
Heterostructure
Ngo, Trong Hai
V. S. Luong
Ramesh, Chandra Bhatt
Lin-Xiu Ye
Te-ho Wu
Lance Horng
Jong-Ching Wu
Novel behaviors of coercivity in GdFeCo/Hf/MgO heterostructure
description It is commonly known that the coercivity (Hc) of the rare-earth/transition-metal (RE–TM) compound is tuned based on the varying RE content as compared to the TM component. The drawback of this approach is that the Hc changes are permanent. In this work, we investigate the coercivity behaviors of the GdFeCo/Hf/MgO heterostructure where the heavy metal Hf layer is inserted in the middle not only to convert charge current into spin current but also to prevent the oxygen diffusion effect. A strong geometry dependence of coercivity detected on Hall bar devices is attributed to the intrinsic properties of GdFeCo and elucidates that the oxidation issue from MgO on GdFeCo is prevented.
format Bài trích
author Ngo, Trong Hai
V. S. Luong
Ramesh, Chandra Bhatt
Lin-Xiu Ye
Te-ho Wu
Lance Horng
Jong-Ching Wu
author_facet Ngo, Trong Hai
V. S. Luong
Ramesh, Chandra Bhatt
Lin-Xiu Ye
Te-ho Wu
Lance Horng
Jong-Ching Wu
author_sort Ngo, Trong Hai
title Novel behaviors of coercivity in GdFeCo/Hf/MgO heterostructure
title_short Novel behaviors of coercivity in GdFeCo/Hf/MgO heterostructure
title_full Novel behaviors of coercivity in GdFeCo/Hf/MgO heterostructure
title_fullStr Novel behaviors of coercivity in GdFeCo/Hf/MgO heterostructure
title_full_unstemmed Novel behaviors of coercivity in GdFeCo/Hf/MgO heterostructure
title_sort novel behaviors of coercivity in gdfeco/hf/mgo heterostructure
publisher AIP Publishing LLC
publishDate 2022
url https://aip.scitation.org/doi/10.1063/5.0086629
https://dlib.phenikaa-uni.edu.vn/handle/PNK/5944
https://doi.org/10.1063/5.0086629
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score 8.887836