Permalloy multilayers to reduce the effects of uniaxial anisotropy

J. Wieberdink; C.J.M. Eijkel

doi:10.1109/20.42592

Permalloy multilayers to reduce the effects of uniaxial anisotropy

J. Wieberdink, C.J.M. Eijkel

University of Twente

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Abstract

The anisotropic magnetoresistance effect of Permalloy (Ni0.82 Fe0.18) is used in a contactless angle detector. The uniaxial magnetic anisotropy in a Permalloy thin film causes a difference between the direction of magnetization and the magnetic field direction. This leads to a systematic error in the angle detector output. The effects of uniaxial magnetic anisotropy can be reduced by using Permalloy multilayers with different orientations of their anisotropy axes. A double layer with mutually perpendicular anisotropy axes is found to be sufficient for application in an angle detector. The Stoner-Wohlfarth single-domain model is used to describe the systematic error of an angle detector using multilayers

Original language	Undefined
Pages (from-to)	4278-4282
Journal	IEEE transactions on magnetics
Volume	25
Issue number	5
DOIs	https://doi.org/10.1109/20.42592
Publication status	Published - 1989

Keywords

IR-55753

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10.1109/20.42592

00042592

Cite this

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abstract = "The anisotropic magnetoresistance effect of Permalloy (Ni0.82 Fe0.18) is used in a contactless angle detector. The uniaxial magnetic anisotropy in a Permalloy thin film causes a difference between the direction of magnetization and the magnetic field direction. This leads to a systematic error in the angle detector output. The effects of uniaxial magnetic anisotropy can be reduced by using Permalloy multilayers with different orientations of their anisotropy axes. A double layer with mutually perpendicular anisotropy axes is found to be sufficient for application in an angle detector. The Stoner-Wohlfarth single-domain model is used to describe the systematic error of an angle detector using multilayers",

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T1 - Permalloy multilayers to reduce the effects of uniaxial anisotropy

AU - Wieberdink, J.

AU - Eijkel, C.J.M.

PY - 1989

Y1 - 1989

N2 - The anisotropic magnetoresistance effect of Permalloy (Ni0.82 Fe0.18) is used in a contactless angle detector. The uniaxial magnetic anisotropy in a Permalloy thin film causes a difference between the direction of magnetization and the magnetic field direction. This leads to a systematic error in the angle detector output. The effects of uniaxial magnetic anisotropy can be reduced by using Permalloy multilayers with different orientations of their anisotropy axes. A double layer with mutually perpendicular anisotropy axes is found to be sufficient for application in an angle detector. The Stoner-Wohlfarth single-domain model is used to describe the systematic error of an angle detector using multilayers

AB - The anisotropic magnetoresistance effect of Permalloy (Ni0.82 Fe0.18) is used in a contactless angle detector. The uniaxial magnetic anisotropy in a Permalloy thin film causes a difference between the direction of magnetization and the magnetic field direction. This leads to a systematic error in the angle detector output. The effects of uniaxial magnetic anisotropy can be reduced by using Permalloy multilayers with different orientations of their anisotropy axes. A double layer with mutually perpendicular anisotropy axes is found to be sufficient for application in an angle detector. The Stoner-Wohlfarth single-domain model is used to describe the systematic error of an angle detector using multilayers

KW - IR-55753

U2 - 10.1109/20.42592

DO - 10.1109/20.42592

M3 - Article

SN - 0018-9464

VL - 25

SP - 4278

EP - 4282

JO - IEEE transactions on magnetics

JF - IEEE transactions on magnetics

IS - 5

ER -