Planar hall effect sensors with subnanotesla resolution

A. Grosz; V. Mor; E. Paperno; S. Amrusi; I. Faivinov; M. Schultz; L. Klein

doi:10.1109/LMAG.2013.2276551

Planar hall effect sensors with subnanotesla resolution

A. Grosz, V. Mor, E. Paperno, S. Amrusi, I. Faivinov, M. Schultz, L. Klein

Ben-Gurion University of the Negev, Bar-Ilan University

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

Abstract

We report the fabrication of elliptical planar Hall effect sensors made of Permalloy with response determined by shape-induced uniaxial anisotropy. By using ac excitation and by optimizing the sensor thickness and the amplitude of the excitation current, we have obtained a magnetic field resolution which is better than 600 pT/√Hz at 1 Hz and close to 1 nT/√Hz at 0.1 Hz. We discuss possible routes for further improvement of the obtained resolution.

Original language	American English
Article number	6587129
Journal	IEEE Magnetics Letters
Volume	4
DOIs	https://doi.org/10.1109/LMAG.2013.2276551
State	Published - 12 Sep 2013

Keywords

Magnetic instruments
Magnetic sensors
Planar Hall effect
Resolution
Sensor
subnanotesla

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials

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10.1109/LMAG.2013.2276551

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title = "Planar hall effect sensors with subnanotesla resolution",

abstract = "We report the fabrication of elliptical planar Hall effect sensors made of Permalloy with response determined by shape-induced uniaxial anisotropy. By using ac excitation and by optimizing the sensor thickness and the amplitude of the excitation current, we have obtained a magnetic field resolution which is better than 600 pT/√Hz at 1 Hz and close to 1 nT/√Hz at 0.1 Hz. We discuss possible routes for further improvement of the obtained resolution.",

keywords = "Magnetic instruments, Magnetic sensors, Planar Hall effect, Resolution, Sensor, subnanotesla",

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language = "American English",

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T1 - Planar hall effect sensors with subnanotesla resolution

AU - Grosz, A.

AU - Mor, V.

AU - Paperno, E.

AU - Amrusi, S.

AU - Faivinov, I.

AU - Schultz, M.

AU - Klein, L.

PY - 2013/9/12

Y1 - 2013/9/12

N2 - We report the fabrication of elliptical planar Hall effect sensors made of Permalloy with response determined by shape-induced uniaxial anisotropy. By using ac excitation and by optimizing the sensor thickness and the amplitude of the excitation current, we have obtained a magnetic field resolution which is better than 600 pT/√Hz at 1 Hz and close to 1 nT/√Hz at 0.1 Hz. We discuss possible routes for further improvement of the obtained resolution.

AB - We report the fabrication of elliptical planar Hall effect sensors made of Permalloy with response determined by shape-induced uniaxial anisotropy. By using ac excitation and by optimizing the sensor thickness and the amplitude of the excitation current, we have obtained a magnetic field resolution which is better than 600 pT/√Hz at 1 Hz and close to 1 nT/√Hz at 0.1 Hz. We discuss possible routes for further improvement of the obtained resolution.

KW - Magnetic instruments

KW - Magnetic sensors

KW - Planar Hall effect

KW - Resolution

KW - Sensor

KW - subnanotesla

UR - http://www.scopus.com/inward/record.url?scp=84883587765&partnerID=8YFLogxK

U2 - 10.1109/LMAG.2013.2276551

DO - 10.1109/LMAG.2013.2276551

M3 - Article

SN - 1949-307X

VL - 4

JO - IEEE Magnetics Letters

JF - IEEE Magnetics Letters

M1 - 6587129

ER -

Planar hall effect sensors with subnanotesla resolution

Abstract

Keywords

All Science Journal Classification (ASJC) codes

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