Planar Hall Effect Magnetometer with 5 pT Resolution

Hariharan Nhalil; Tzahi Givon; Proloy Taran Das; Nir Hasidim; Vladislav Mor; Moty Schultz; Shai Amrusi; Lior Klein; Asaf Grosz

doi:10.1109/lsens.2019.2947681

Planar Hall Effect Magnetometer with 5 pT Resolution

Hariharan Nhalil, Tzahi Givon, Proloy Taran Das, Nir Hasidim, Vladislav Mor, Moty Schultz, Shai Amrusi, Lior Klein, Asaf Grosz

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

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

Abstract

We integrate elliptical planar Hall effect (PHE) magnetometers with optimized high permeability magnetic flux concentrators. The integrated magnetometers exhibit at room temperature an equivalent magnetic noise of ∼5 pT/√Hz at 10 Hz, 7.4 pT/√Hz at 1 Hz, and better than 100 pT/√Hz at 10 mHz. The results constitute more than an order of magnitude improvement over previously reported state-of-the-art PHE magnetometers, and demonstrate, for the first time, the ability of a magnetoresistive sensor to match the performance of state-of-the-art, high-end flux-gate, and miniature atomic magnetometers.

Original language	English
Article number	8871164
Journal	IEEE Sensors Letters
Volume	3
Issue number	12
DOIs	https://doi.org/10.1109/lsens.2019.2947681
State	Published - 1 Dec 2019

Keywords

Magnetic sensors
equivalent magnetic noise (EMN)
magnetometer
planar Hall effect (PHE)

All Science Journal Classification (ASJC) codes

Instrumentation
Electrical and Electronic Engineering

Access to Document

10.1109/lsens.2019.2947681

Cite this

@article{8e821e1a50204d088eb62b0f283040ea,

title = "Planar Hall Effect Magnetometer with 5 pT Resolution",

abstract = "We integrate elliptical planar Hall effect (PHE) magnetometers with optimized high permeability magnetic flux concentrators. The integrated magnetometers exhibit at room temperature an equivalent magnetic noise of ∼5 pT/√Hz at 10 Hz, 7.4 pT/√Hz at 1 Hz, and better than 100 pT/√Hz at 10 mHz. The results constitute more than an order of magnitude improvement over previously reported state-of-the-art PHE magnetometers, and demonstrate, for the first time, the ability of a magnetoresistive sensor to match the performance of state-of-the-art, high-end flux-gate, and miniature atomic magnetometers.",

keywords = "Magnetic sensors, equivalent magnetic noise (EMN), magnetometer, planar Hall effect (PHE)",

author = "Hariharan Nhalil and Tzahi Givon and Das, \{Proloy Taran\} and Nir Hasidim and Vladislav Mor and Moty Schultz and Shai Amrusi and Lior Klein and Asaf Grosz",

note = "Publisher Copyright: {\textcopyright} 2017 IEEE.",

year = "2019",

month = dec,

day = "1",

doi = "10.1109/lsens.2019.2947681",

language = "الإنجليزيّة",

volume = "3",

journal = "IEEE Sensors Letters",

issn = "2475-1472",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

number = "12",

}

TY - JOUR

T1 - Planar Hall Effect Magnetometer with 5 pT Resolution

AU - Nhalil, Hariharan

AU - Givon, Tzahi

AU - Das, Proloy Taran

AU - Hasidim, Nir

AU - Mor, Vladislav

AU - Schultz, Moty

AU - Amrusi, Shai

AU - Klein, Lior

AU - Grosz, Asaf

PY - 2019/12/1

Y1 - 2019/12/1

N2 - We integrate elliptical planar Hall effect (PHE) magnetometers with optimized high permeability magnetic flux concentrators. The integrated magnetometers exhibit at room temperature an equivalent magnetic noise of ∼5 pT/√Hz at 10 Hz, 7.4 pT/√Hz at 1 Hz, and better than 100 pT/√Hz at 10 mHz. The results constitute more than an order of magnitude improvement over previously reported state-of-the-art PHE magnetometers, and demonstrate, for the first time, the ability of a magnetoresistive sensor to match the performance of state-of-the-art, high-end flux-gate, and miniature atomic magnetometers.

AB - We integrate elliptical planar Hall effect (PHE) magnetometers with optimized high permeability magnetic flux concentrators. The integrated magnetometers exhibit at room temperature an equivalent magnetic noise of ∼5 pT/√Hz at 10 Hz, 7.4 pT/√Hz at 1 Hz, and better than 100 pT/√Hz at 10 mHz. The results constitute more than an order of magnitude improvement over previously reported state-of-the-art PHE magnetometers, and demonstrate, for the first time, the ability of a magnetoresistive sensor to match the performance of state-of-the-art, high-end flux-gate, and miniature atomic magnetometers.

KW - Magnetic sensors

KW - equivalent magnetic noise (EMN)

KW - magnetometer

KW - planar Hall effect (PHE)

UR - http://www.scopus.com/inward/record.url?scp=85082634423&partnerID=8YFLogxK

U2 - 10.1109/lsens.2019.2947681

DO - 10.1109/lsens.2019.2947681

M3 - مقالة

SN - 2475-1472

VL - 3

JO - IEEE Sensors Letters

JF - IEEE Sensors Letters

IS - 12

M1 - 8871164

ER -

Planar Hall Effect Magnetometer with 5 pT Resolution

Abstract

Keywords

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this