Magnetization switching and hall effect in co/pd-based pseudospin-valves with perpendicular magnetic anisotropy

Jun Yang Chen; Naganivetha Thiyagarajah; Karsten Rode; Timothy V. Ashworth; J. M D Coey

doi:10.1109/TMAG.2014.2323221

Magnetization switching and hall effect in co/pd-based pseudospin-valves with perpendicular magnetic anisotropy

Jun Yang Chen, Naganivetha Thiyagarajah, Karsten Rode, Timothy V. Ashworth, J. M D Coey

Electrical and Computer Engineering

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

2 Scopus citations

Abstract

Magnetoresistance (MR), extraordinary Hall effect (EHE), planar Hall effect (PHE), and low-frequency noise are measured on pseudospin-valves based on Co/Pd multilayers with perpendicular magnetic anisotropy. In unpatterned films, a current-in-plane MR of 3.8% was obtained with a Cu spacer layer thickness of 2.0 nm. Large anomalous peaks observed in EHE and PHE in the narrow range of field where switching occurs are associated with multidomain magnetization during the reversal process. Magnetic field-and time-dependent noise indicates that the magnitude of the noise is directly related to magnetization switching in this system.

Original language	English (US)
Article number	6971365
Journal	IEEE Transactions on Magnetics
Volume	50
Issue number	11
DOIs	https://doi.org/10.1109/TMAG.2014.2323221
State	Published - Nov 1 2014

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Publisher Copyright:
© 2014 IEEE.

Keywords

1/f noise
Co/Pd-based pseudospin-valves (PSVs)
giant magnetoresistance (GMR)
perpendicular magnetic anisotropy (PMA)

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10.1109/TMAG.2014.2323221

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title = "Magnetization switching and hall effect in co/pd-based pseudospin-valves with perpendicular magnetic anisotropy",

abstract = "Magnetoresistance (MR), extraordinary Hall effect (EHE), planar Hall effect (PHE), and low-frequency noise are measured on pseudospin-valves based on Co/Pd multilayers with perpendicular magnetic anisotropy. In unpatterned films, a current-in-plane MR of 3.8% was obtained with a Cu spacer layer thickness of 2.0 nm. Large anomalous peaks observed in EHE and PHE in the narrow range of field where switching occurs are associated with multidomain magnetization during the reversal process. Magnetic field-and time-dependent noise indicates that the magnitude of the noise is directly related to magnetization switching in this system.",

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AU - Chen, Jun Yang

AU - Thiyagarajah, Naganivetha

AU - Rode, Karsten

AU - Ashworth, Timothy V.

AU - Coey, J. M D

PY - 2014/11/1

Y1 - 2014/11/1

N2 - Magnetoresistance (MR), extraordinary Hall effect (EHE), planar Hall effect (PHE), and low-frequency noise are measured on pseudospin-valves based on Co/Pd multilayers with perpendicular magnetic anisotropy. In unpatterned films, a current-in-plane MR of 3.8% was obtained with a Cu spacer layer thickness of 2.0 nm. Large anomalous peaks observed in EHE and PHE in the narrow range of field where switching occurs are associated with multidomain magnetization during the reversal process. Magnetic field-and time-dependent noise indicates that the magnitude of the noise is directly related to magnetization switching in this system.

AB - Magnetoresistance (MR), extraordinary Hall effect (EHE), planar Hall effect (PHE), and low-frequency noise are measured on pseudospin-valves based on Co/Pd multilayers with perpendicular magnetic anisotropy. In unpatterned films, a current-in-plane MR of 3.8% was obtained with a Cu spacer layer thickness of 2.0 nm. Large anomalous peaks observed in EHE and PHE in the narrow range of field where switching occurs are associated with multidomain magnetization during the reversal process. Magnetic field-and time-dependent noise indicates that the magnitude of the noise is directly related to magnetization switching in this system.

KW - 1/f noise

KW - Co/Pd-based pseudospin-valves (PSVs)

KW - giant magnetoresistance (GMR)

KW - perpendicular magnetic anisotropy (PMA)

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Magnetization switching and hall effect in co/pd-based pseudospin-valves with perpendicular magnetic anisotropy

Abstract

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