Anomalous Hall effect in Fe/Gd bilayers

W. J. Xu; Bei Zhang; Z. X. Liu; Z. Wang; W. Li; Z. B. Wu; R. H. Yu; Xixiang Zhang

doi:10.1209/0295-5075/90/27004

Anomalous Hall effect in Fe/Gd bilayers

W. J. Xu, Bei Zhang, Z. X. Liu, Z. Wang, W. Li, Z. B. Wu, R. H. Yu, Xixiang Zhang

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Abstract

Non-monotonic dependence of anomalous Hall resistivity on temperature and magnetization, including a sign change, was observed in Fe/Gd bilayers. To understand the intriguing observations, we fabricated the Fe/Gd bilayers and single layers of Fe and Gd simultaneously. The temperature and field dependences of longitudinal resistivity, Hall resistivity and magnetization in these films have also been carefully measured. The analysis of these data reveals that these intriguing features are due to the opposite signs of Hall resistivity/or spin polarization and different Curie temperatures of Fe and Gd single-layer films. Copyright (C) EPLA, 2010

Original language	English (US)
Pages (from-to)	27004
Journal	EPL (Europhysics Letters)
Volume	90
Issue number	2
DOIs	https://doi.org/10.1209/0295-5075/90/27004
State	Published - May 11 2010

Bibliographical note

KAUST Repository Item: Exported on 2020-10-01
Acknowledgements: We thank Prof. K. W. WONG for valuable discussions on the Berry phase theory. The work described in this paper was supported by grants from the Research Grants Council of the Hong Kong Special Administrative Region (Project No. 604407) and the National Science Foundation of China (Nos. 50729101 and 50525101).

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title = "Anomalous Hall effect in Fe/Gd bilayers",

abstract = "Non-monotonic dependence of anomalous Hall resistivity on temperature and magnetization, including a sign change, was observed in Fe/Gd bilayers. To understand the intriguing observations, we fabricated the Fe/Gd bilayers and single layers of Fe and Gd simultaneously. The temperature and field dependences of longitudinal resistivity, Hall resistivity and magnetization in these films have also been carefully measured. The analysis of these data reveals that these intriguing features are due to the opposite signs of Hall resistivity/or spin polarization and different Curie temperatures of Fe and Gd single-layer films. Copyright (C) EPLA, 2010",

author = "Xu, {W. J.} and Bei Zhang and Liu, {Z. X.} and Z. Wang and W. Li and Wu, {Z. B.} and Yu, {R. H.} and Xixiang Zhang",

note = "KAUST Repository Item: Exported on 2020-10-01 Acknowledgements: We thank Prof. K. W. WONG for valuable discussions on the Berry phase theory. The work described in this paper was supported by grants from the Research Grants Council of the Hong Kong Special Administrative Region (Project No. 604407) and the National Science Foundation of China (Nos. 50729101 and 50525101).",

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AU - Xu, W. J.

AU - Zhang, Bei

AU - Liu, Z. X.

AU - Wang, Z.

AU - Li, W.

AU - Wu, Z. B.

AU - Yu, R. H.

AU - Zhang, Xixiang

N1 - KAUST Repository Item: Exported on 2020-10-01 Acknowledgements: We thank Prof. K. W. WONG for valuable discussions on the Berry phase theory. The work described in this paper was supported by grants from the Research Grants Council of the Hong Kong Special Administrative Region (Project No. 604407) and the National Science Foundation of China (Nos. 50729101 and 50525101).

PY - 2010/5/11

Y1 - 2010/5/11

N2 - Non-monotonic dependence of anomalous Hall resistivity on temperature and magnetization, including a sign change, was observed in Fe/Gd bilayers. To understand the intriguing observations, we fabricated the Fe/Gd bilayers and single layers of Fe and Gd simultaneously. The temperature and field dependences of longitudinal resistivity, Hall resistivity and magnetization in these films have also been carefully measured. The analysis of these data reveals that these intriguing features are due to the opposite signs of Hall resistivity/or spin polarization and different Curie temperatures of Fe and Gd single-layer films. Copyright (C) EPLA, 2010

AB - Non-monotonic dependence of anomalous Hall resistivity on temperature and magnetization, including a sign change, was observed in Fe/Gd bilayers. To understand the intriguing observations, we fabricated the Fe/Gd bilayers and single layers of Fe and Gd simultaneously. The temperature and field dependences of longitudinal resistivity, Hall resistivity and magnetization in these films have also been carefully measured. The analysis of these data reveals that these intriguing features are due to the opposite signs of Hall resistivity/or spin polarization and different Curie temperatures of Fe and Gd single-layer films. Copyright (C) EPLA, 2010

UR - http://hdl.handle.net/10754/575539

UR - https://iopscience.iop.org/article/10.1209/0295-5075/90/27004

U2 - 10.1209/0295-5075/90/27004

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SP - 27004

JO - EPL (Europhysics Letters)

JF - EPL (Europhysics Letters)

IS - 2

ER -

Anomalous Hall effect in Fe/Gd bilayers

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