Extrinsic contribution to anomalous Hall effect in chiral antiferromagnetic (111)-oriented L12-Mn3Ir films

Yuta Kobayashi; Motoi Kimata; Daisuke Kan; Tetsuya Ikebuchi; Yoichi Shiota; Hiroshi Kohno; Yuichi Shimakawa; Teruo Ono; Takahiro Moriyama

doi:10.35848/1347-4065/ac7625

Extrinsic contribution to anomalous Hall effect in chiral antiferromagnetic (111)-oriented L1₂-Mn₃Ir films

Yuta Kobayashi, Motoi Kimata, Daisuke Kan, Tetsuya Ikebuchi, Yoichi Shiota, Hiroshi Kohno, Yuichi Shimakawa, Teruo Ono, Takahiro Moriyama

金属材料研究所・材料物性研究部

研究成果: Article › 査読

1 被引用数 (Scopus)

抄録

Chiral antiferromagnets are regarded as a new class of antiferromagnets owing to its intriguing spin transport properties such as a sizable anomalous Hall effect (AHE). In this work, we fabricated chiral antiferromagnetic L12-Mn3Ir (111)-oriented films and investigated the anomalous Hall conductivity with respect to the chemical order parameter S. It is found that the anomalous Hall conductivity in (111)-oriented films is much more pronounced compared to (001)-oriented films, which is consistent with the theoretical prediction. We also found that the anomalous Hall conductivity strongly depends on the longitudinal conductivity, which could suggest an extrinsic contribution to the AHE in L12-Mn3Ir.

本文言語	English
論文番号	070912
ジャーナル	Japanese journal of applied physics
巻	61
号	7
DOI	https://doi.org/10.35848/1347-4065/ac7625
出版ステータス	Published - 2022 7月 1

ASJC Scopus subject areas

工学（全般）
物理学および天文学（全般）

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10.35848/1347-4065/ac7625

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引用スタイル

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title = "Extrinsic contribution to anomalous Hall effect in chiral antiferromagnetic (111)-oriented L12-Mn3Ir films",

abstract = "Chiral antiferromagnets are regarded as a new class of antiferromagnets owing to its intriguing spin transport properties such as a sizable anomalous Hall effect (AHE). In this work, we fabricated chiral antiferromagnetic L12-Mn3Ir (111)-oriented films and investigated the anomalous Hall conductivity with respect to the chemical order parameter S. It is found that the anomalous Hall conductivity in (111)-oriented films is much more pronounced compared to (001)-oriented films, which is consistent with the theoretical prediction. We also found that the anomalous Hall conductivity strongly depends on the longitudinal conductivity, which could suggest an extrinsic contribution to the AHE in L12-Mn3Ir.",

keywords = "anomalous hall effect, antiferromagnetic spintronics, chiral antiferromagnets",

author = "Yuta Kobayashi and Motoi Kimata and Daisuke Kan and Tetsuya Ikebuchi and Yoichi Shiota and Hiroshi Kohno and Yuichi Shimakawa and Teruo Ono and Takahiro Moriyama",

note = "Funding Information: This work was supported by JSPS KAKENHI Grant Nos. JP22J12061, JP21H04562, JP20H05665, JP19K21972, JP19J21253, and JP19H05823, JST PRESTO Grant No. JPMJPR20B9, and the Mazda Foundation, and Kyoto University Science and Technology Innovation Creation Fellowship: Materials Science. Publisher Copyright: {\textcopyright} 2022 The Japan Society of Applied Physics.",

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doi = "10.35848/1347-4065/ac7625",

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T1 - Extrinsic contribution to anomalous Hall effect in chiral antiferromagnetic (111)-oriented L12-Mn3Ir films

AU - Kobayashi, Yuta

AU - Kimata, Motoi

AU - Kan, Daisuke

AU - Ikebuchi, Tetsuya

AU - Shiota, Yoichi

AU - Kohno, Hiroshi

AU - Shimakawa, Yuichi

AU - Ono, Teruo

AU - Moriyama, Takahiro

N1 - Funding Information: This work was supported by JSPS KAKENHI Grant Nos. JP22J12061, JP21H04562, JP20H05665, JP19K21972, JP19J21253, and JP19H05823, JST PRESTO Grant No. JPMJPR20B9, and the Mazda Foundation, and Kyoto University Science and Technology Innovation Creation Fellowship: Materials Science. Publisher Copyright: © 2022 The Japan Society of Applied Physics.

PY - 2022/7/1

Y1 - 2022/7/1

N2 - Chiral antiferromagnets are regarded as a new class of antiferromagnets owing to its intriguing spin transport properties such as a sizable anomalous Hall effect (AHE). In this work, we fabricated chiral antiferromagnetic L12-Mn3Ir (111)-oriented films and investigated the anomalous Hall conductivity with respect to the chemical order parameter S. It is found that the anomalous Hall conductivity in (111)-oriented films is much more pronounced compared to (001)-oriented films, which is consistent with the theoretical prediction. We also found that the anomalous Hall conductivity strongly depends on the longitudinal conductivity, which could suggest an extrinsic contribution to the AHE in L12-Mn3Ir.

AB - Chiral antiferromagnets are regarded as a new class of antiferromagnets owing to its intriguing spin transport properties such as a sizable anomalous Hall effect (AHE). In this work, we fabricated chiral antiferromagnetic L12-Mn3Ir (111)-oriented films and investigated the anomalous Hall conductivity with respect to the chemical order parameter S. It is found that the anomalous Hall conductivity in (111)-oriented films is much more pronounced compared to (001)-oriented films, which is consistent with the theoretical prediction. We also found that the anomalous Hall conductivity strongly depends on the longitudinal conductivity, which could suggest an extrinsic contribution to the AHE in L12-Mn3Ir.

KW - anomalous hall effect

KW - antiferromagnetic spintronics

KW - chiral antiferromagnets

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