Extrinsic anomalous Hall effect in van der Waals ferromagnet Fe5GeTe2

We investigate the anomalous Hall effect in a van der Waals material Fe5GeTe2. We find a distinct difference in the temperature dependence of the anomalous Hall effect associated with the evolution of magnetic states in Fe5GeTe2 films. In the low-temperature region, the anomalous Hall conductivity c...

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Main Authors: Ryuki Suzuki, Tenghua Gao, Hiroki Nakayama, Kazuya Ando
Format: Article
Language:English
Published: AIP Publishing LLC 2023-05-01
Series:AIP Advances
Online Access:http://dx.doi.org/10.1063/5.0112456
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author Ryuki Suzuki
Tenghua Gao
Hiroki Nakayama
Kazuya Ando
author_facet Ryuki Suzuki
Tenghua Gao
Hiroki Nakayama
Kazuya Ando
author_sort Ryuki Suzuki
collection DOAJ
description We investigate the anomalous Hall effect in a van der Waals material Fe5GeTe2. We find a distinct difference in the temperature dependence of the anomalous Hall effect associated with the evolution of magnetic states in Fe5GeTe2 films. In the low-temperature region, the anomalous Hall conductivity changes with the longitudinal conductivity, which highlights the substantial contribution from the extrinsic mechanism. The extracted skew scattering coefficient in the Fe5GeTe2 films is an order of magnitude larger than that in transition metal ferromagnets. This result sheds light on the role of the extrinsic mechanism in the anomalous Hall effect in van der Waals magnets.
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spelling doaj.art-8bd73b831b2443e6a7d140a2e09d25462023-07-26T15:31:54ZengAIP Publishing LLCAIP Advances2158-32262023-05-01135055311055311-510.1063/5.0112456Extrinsic anomalous Hall effect in van der Waals ferromagnet Fe5GeTe2Ryuki Suzuki0Tenghua Gao1Hiroki Nakayama2Kazuya Ando3Department of Applied Physics and Physico-Informatics, Keio University, Yokohama 223-8522, JapanDepartment of Applied Physics and Physico-Informatics, Keio University, Yokohama 223-8522, JapanDepartment of Applied Physics and Physico-Informatics, Keio University, Yokohama 223-8522, JapanDepartment of Applied Physics and Physico-Informatics, Keio University, Yokohama 223-8522, JapanWe investigate the anomalous Hall effect in a van der Waals material Fe5GeTe2. We find a distinct difference in the temperature dependence of the anomalous Hall effect associated with the evolution of magnetic states in Fe5GeTe2 films. In the low-temperature region, the anomalous Hall conductivity changes with the longitudinal conductivity, which highlights the substantial contribution from the extrinsic mechanism. The extracted skew scattering coefficient in the Fe5GeTe2 films is an order of magnitude larger than that in transition metal ferromagnets. This result sheds light on the role of the extrinsic mechanism in the anomalous Hall effect in van der Waals magnets.http://dx.doi.org/10.1063/5.0112456
spellingShingle Ryuki Suzuki
Tenghua Gao
Hiroki Nakayama
Kazuya Ando
Extrinsic anomalous Hall effect in van der Waals ferromagnet Fe5GeTe2
AIP Advances
title Extrinsic anomalous Hall effect in van der Waals ferromagnet Fe5GeTe2
title_full Extrinsic anomalous Hall effect in van der Waals ferromagnet Fe5GeTe2
title_fullStr Extrinsic anomalous Hall effect in van der Waals ferromagnet Fe5GeTe2
title_full_unstemmed Extrinsic anomalous Hall effect in van der Waals ferromagnet Fe5GeTe2
title_short Extrinsic anomalous Hall effect in van der Waals ferromagnet Fe5GeTe2
title_sort extrinsic anomalous hall effect in van der waals ferromagnet fe5gete2
url http://dx.doi.org/10.1063/5.0112456
work_keys_str_mv AT ryukisuzuki extrinsicanomaloushalleffectinvanderwaalsferromagnetfe5gete2
AT tenghuagao extrinsicanomaloushalleffectinvanderwaalsferromagnetfe5gete2
AT hirokinakayama extrinsicanomaloushalleffectinvanderwaalsferromagnetfe5gete2
AT kazuyaando extrinsicanomaloushalleffectinvanderwaalsferromagnetfe5gete2