Journal
JAPANESE JOURNAL OF APPLIED PHYSICS
Volume 61, Issue 7, Pages -Publisher
IOP Publishing Ltd
DOI: 10.35848/1347-4065/ac7625
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Funding
- JSPS KAKENHI [JP22J12061, JP21H04562, JP20H05665, JP19K21972, JP19J21253, JP19H05823]
- JST PRESTO [JPMJPR20B9]
- Mazda Foundation
- Kyoto University Science and Technology Innovation Creation Fellowship: Materials Science
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This study investigates the relationship between anomalous Hall conductivity and the chemical order parameter in chiral antiferromagnetic L1(2)-Mn3Ir (111)-oriented films. The results show that the anomalous Hall conductivity is more pronounced in (111)-oriented films compared to (001)-oriented films, consistent with the theoretical prediction. It is also found that the anomalous Hall conductivity strongly depends on the longitudinal conductivity, suggesting a possible extrinsic contribution.
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 L1(2)-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 L1(2)-Mn3Ir. (C) 2022 The Japan Society of Applied Physics
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