Anomalous Hall effect measurement of novel magnetic multilayers

Seng Kai Wong; Bing Hong Chia; Kumar Srinivasan; Randall Law; Ei Leen Tan; Hang Khume Tan; Rachid Sbiaa; S. N. Piramanayagam

doi:10.1063/1.3240346

Anomalous Hall effect measurement of novel magnetic multilayers

Seng Kai Wong^*, Bing Hong Chia, Kumar Srinivasan, Randall Law, Ei Leen Tan, Hang Khume Tan, Rachid Sbiaa, S. N. Piramanayagam

^*Corresponding author for this work

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

6 Citations (Scopus)

Abstract

We have used the method of anomalous Hall effect (AHE) to characterize magnetic thin film structures consisting of both perpendicular (normal-to-plane) and longitudinal (in-plane) anisotropies. AHE enables the simultaneous extraction of the perpendicular and in-plane magnetizations. The method is used to obtain the hysteresis loops and study the switching behavior of [Co/Pd] multilayers coupled to different seed layers. Results show that Cu seed layer helps to reduce the switching field distribution (SFD) and increase the coercivity while Co underlayer with an in-plane anisotropy helps to reduce the coercivity and increase the SFD. Furthermore, the magnetization in the Co in-plane layer is found to be pointing out of plane possibly due to exchange coupling with the [Co/Pd] multilayers.

Original language	English
Article number	093904
Journal	Journal of Applied Physics
Volume	106
Issue number	9
DOIs	https://doi.org/10.1063/1.3240346
Publication status	Published - 2009
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy(all)

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10.1063/1.3240346

Cite this

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title = "Anomalous Hall effect measurement of novel magnetic multilayers",

abstract = "We have used the method of anomalous Hall effect (AHE) to characterize magnetic thin film structures consisting of both perpendicular (normal-to-plane) and longitudinal (in-plane) anisotropies. AHE enables the simultaneous extraction of the perpendicular and in-plane magnetizations. The method is used to obtain the hysteresis loops and study the switching behavior of [Co/Pd] multilayers coupled to different seed layers. Results show that Cu seed layer helps to reduce the switching field distribution (SFD) and increase the coercivity while Co underlayer with an in-plane anisotropy helps to reduce the coercivity and increase the SFD. Furthermore, the magnetization in the Co in-plane layer is found to be pointing out of plane possibly due to exchange coupling with the [Co/Pd] multilayers.",

author = "Wong, {Seng Kai} and Chia, {Bing Hong} and Kumar Srinivasan and Randall Law and Tan, {Ei Leen} and Tan, {Hang Khume} and Rachid Sbiaa and Piramanayagam, {S. N.}",

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T1 - Anomalous Hall effect measurement of novel magnetic multilayers

AU - Wong, Seng Kai

AU - Chia, Bing Hong

AU - Srinivasan, Kumar

AU - Law, Randall

AU - Tan, Ei Leen

AU - Tan, Hang Khume

AU - Sbiaa, Rachid

AU - Piramanayagam, S. N.

PY - 2009

Y1 - 2009

N2 - We have used the method of anomalous Hall effect (AHE) to characterize magnetic thin film structures consisting of both perpendicular (normal-to-plane) and longitudinal (in-plane) anisotropies. AHE enables the simultaneous extraction of the perpendicular and in-plane magnetizations. The method is used to obtain the hysteresis loops and study the switching behavior of [Co/Pd] multilayers coupled to different seed layers. Results show that Cu seed layer helps to reduce the switching field distribution (SFD) and increase the coercivity while Co underlayer with an in-plane anisotropy helps to reduce the coercivity and increase the SFD. Furthermore, the magnetization in the Co in-plane layer is found to be pointing out of plane possibly due to exchange coupling with the [Co/Pd] multilayers.

AB - We have used the method of anomalous Hall effect (AHE) to characterize magnetic thin film structures consisting of both perpendicular (normal-to-plane) and longitudinal (in-plane) anisotropies. AHE enables the simultaneous extraction of the perpendicular and in-plane magnetizations. The method is used to obtain the hysteresis loops and study the switching behavior of [Co/Pd] multilayers coupled to different seed layers. Results show that Cu seed layer helps to reduce the switching field distribution (SFD) and increase the coercivity while Co underlayer with an in-plane anisotropy helps to reduce the coercivity and increase the SFD. Furthermore, the magnetization in the Co in-plane layer is found to be pointing out of plane possibly due to exchange coupling with the [Co/Pd] multilayers.

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Anomalous Hall effect measurement of novel magnetic multilayers

Abstract

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