Composition dependence of the spin-anomalous Hall effect in a ferromagnetic Fe-Co alloy

Yuya Koike; Satoshi Iihama; Shigemi Mizukami

doi:10.35848/1347-4065/abac40

Composition dependence of the spin-anomalous Hall effect in a ferromagnetic Fe-Co alloy

Yuya Koike, Satoshi Iihama, Shigemi Mizukami

Tohoku University

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

9 Citations (Scopus)

Abstract

We investigated the spin-anomalous Hall effect (SAHE) in ferromagnetic Fe-Co binary alloys with different compositions. The ferromagnetic resonance (FMR) measurement in Fe1-xCox/Ti/Py trilayer structures was performed to detect the SAHE in Fe1-xCox. The modulation of FMR linewidth in the Py layer due to the SAHE was observed. The effective spin-anomalous Hall angle changed from a positive value (+0.027 at x = 0.15) to a negative value (-0.012 at x = 0.65) with increasing Co composition. This study provides a deeper understanding of the SAHE.

Original language	English
Article number	090907
Journal	Japanese Journal of Applied Physics
Volume	59
Issue number	9
DOIs	https://doi.org/10.35848/1347-4065/abac40
Publication status	Published - 2020 Sept 1

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abstract = "We investigated the spin-anomalous Hall effect (SAHE) in ferromagnetic Fe-Co binary alloys with different compositions. The ferromagnetic resonance (FMR) measurement in Fe1-xCox/Ti/Py trilayer structures was performed to detect the SAHE in Fe1-xCox. The modulation of FMR linewidth in the Py layer due to the SAHE was observed. The effective spin-anomalous Hall angle changed from a positive value (+0.027 at x = 0.15) to a negative value (-0.012 at x = 0.65) with increasing Co composition. This study provides a deeper understanding of the SAHE.",

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N2 - We investigated the spin-anomalous Hall effect (SAHE) in ferromagnetic Fe-Co binary alloys with different compositions. The ferromagnetic resonance (FMR) measurement in Fe1-xCox/Ti/Py trilayer structures was performed to detect the SAHE in Fe1-xCox. The modulation of FMR linewidth in the Py layer due to the SAHE was observed. The effective spin-anomalous Hall angle changed from a positive value (+0.027 at x = 0.15) to a negative value (-0.012 at x = 0.65) with increasing Co composition. This study provides a deeper understanding of the SAHE.

AB - We investigated the spin-anomalous Hall effect (SAHE) in ferromagnetic Fe-Co binary alloys with different compositions. The ferromagnetic resonance (FMR) measurement in Fe1-xCox/Ti/Py trilayer structures was performed to detect the SAHE in Fe1-xCox. The modulation of FMR linewidth in the Py layer due to the SAHE was observed. The effective spin-anomalous Hall angle changed from a positive value (+0.027 at x = 0.15) to a negative value (-0.012 at x = 0.65) with increasing Co composition. This study provides a deeper understanding of the SAHE.

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Composition dependence of the spin-anomalous Hall effect in a ferromagnetic Fe-Co alloy

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