Additive Dzyaloshinskii-Moriya interaction in Pt/Co/Re films

Akiyo Nomura; Tenghua Gao; Satoshi Haku; Kazuya Ando

doi:10.1063/5.0077683

Additive Dzyaloshinskii-Moriya interaction in Pt/Co/Re films

Akiyo Nomura, Tenghua Gao, Satoshi Haku, Kazuya Ando

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

1 Citation (Scopus)

Abstract

We report the Dzyaloshinskii-Moriya interaction (DMI) in Pt/Co/Re films. By measuring the current-induced hysteresis loop shift, we find that the interfacial DMI in the Pt/Co/Re structure is 2.1 pJ/m, which is stronger than that in Ir/Co/Pt asymmetric multilayers. The large DMI in this system can be attributed to an additive DMI at the Pt/Co and Co/Re interfaces; the Co/Re interface hosts a large DMI whose sign is the same as that at the Pt/Co interface. The additive DMI due to the large DMI at the Co/Re interface is consistent with theoretical predictions. The result provides a way to control the formation of chiral spin textures, such as magnetic skyrmions and chiral domain walls.

Original language	English
Article number	015215
Journal	AIP Advances
Volume	12
Issue number	1
DOIs	https://doi.org/10.1063/5.0077683
Publication status	Published - 2022 Jan 1

ASJC Scopus subject areas

Physics and Astronomy(all)

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title = "Additive Dzyaloshinskii-Moriya interaction in Pt/Co/Re films",

abstract = "We report the Dzyaloshinskii-Moriya interaction (DMI) in Pt/Co/Re films. By measuring the current-induced hysteresis loop shift, we find that the interfacial DMI in the Pt/Co/Re structure is 2.1 pJ/m, which is stronger than that in Ir/Co/Pt asymmetric multilayers. The large DMI in this system can be attributed to an additive DMI at the Pt/Co and Co/Re interfaces; the Co/Re interface hosts a large DMI whose sign is the same as that at the Pt/Co interface. The additive DMI due to the large DMI at the Co/Re interface is consistent with theoretical predictions. The result provides a way to control the formation of chiral spin textures, such as magnetic skyrmions and chiral domain walls.",

author = "Akiyo Nomura and Tenghua Gao and Satoshi Haku and Kazuya Ando",

note = "Funding Information: This work was supported by the JSPS KAKENHI (Grant No. 19H00864), the JST FOREST Program (Grant No. JPMJFR2032), the Asahi Glass Foundation, and the Spintronics Research Network of Japan (Spin-RNJ). Publisher Copyright: {\textcopyright} 2022 Author(s).",

year = "2022",

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doi = "10.1063/5.0077683",

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T1 - Additive Dzyaloshinskii-Moriya interaction in Pt/Co/Re films

AU - Nomura, Akiyo

AU - Gao, Tenghua

AU - Haku, Satoshi

AU - Ando, Kazuya

N1 - Funding Information: This work was supported by the JSPS KAKENHI (Grant No. 19H00864), the JST FOREST Program (Grant No. JPMJFR2032), the Asahi Glass Foundation, and the Spintronics Research Network of Japan (Spin-RNJ). Publisher Copyright: © 2022 Author(s).

PY - 2022/1/1

Y1 - 2022/1/1

N2 - We report the Dzyaloshinskii-Moriya interaction (DMI) in Pt/Co/Re films. By measuring the current-induced hysteresis loop shift, we find that the interfacial DMI in the Pt/Co/Re structure is 2.1 pJ/m, which is stronger than that in Ir/Co/Pt asymmetric multilayers. The large DMI in this system can be attributed to an additive DMI at the Pt/Co and Co/Re interfaces; the Co/Re interface hosts a large DMI whose sign is the same as that at the Pt/Co interface. The additive DMI due to the large DMI at the Co/Re interface is consistent with theoretical predictions. The result provides a way to control the formation of chiral spin textures, such as magnetic skyrmions and chiral domain walls.

AB - We report the Dzyaloshinskii-Moriya interaction (DMI) in Pt/Co/Re films. By measuring the current-induced hysteresis loop shift, we find that the interfacial DMI in the Pt/Co/Re structure is 2.1 pJ/m, which is stronger than that in Ir/Co/Pt asymmetric multilayers. The large DMI in this system can be attributed to an additive DMI at the Pt/Co and Co/Re interfaces; the Co/Re interface hosts a large DMI whose sign is the same as that at the Pt/Co interface. The additive DMI due to the large DMI at the Co/Re interface is consistent with theoretical predictions. The result provides a way to control the formation of chiral spin textures, such as magnetic skyrmions and chiral domain walls.

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JF - AIP Advances

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M1 - 015215

ER -

Additive Dzyaloshinskii-Moriya interaction in Pt/Co/Re films

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