A Study of Hysteresis Reduction of Small AC Magnetic Field Modulated Tunneling Magnetoresistive Sensor

Han Sheng Huang; Shu Hsien Liao; Yi Yang; Andrei Sokolov; Yen Fu Liu; Xiaolu Yin; Lucas Camponogara Viera; Sy Hwang Liou

doi:10.1109/TMAG.2021.3085095

A Study of Hysteresis Reduction of Small AC Magnetic Field Modulated Tunneling Magnetoresistive Sensor

Han Sheng Huang, Shu Hsien Liao^*, Yi Yang, Andrei Sokolov, Yen Fu Liu, Xiaolu Yin, Lucas Camponogara Viera, Sy Hwang Liou^*

^*Corresponding author for this work

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

3 Citations (Scopus)

Abstract

In this study, a hysteresis reduction technique for tunneling magnetoresistive (TMR) sensor for low magnetic field sensing is proposed, where a small ac modulation magnetic field is applied. The magnetic tunnel junctions (MTJs) were connected into an asymmetric Wheatstone bridge to form a sensor, and the output voltage of the TMR sensor was measured using a small ac modulation field and test field along the sensor's sensing direction. The results showed that hysteresis in the TMR sensor can be effectively reduced to exhibit a linear response. Further, the frequency response of the TMR sensor was studied. Finally, the feasibility of the TMR sensor for low-field detection with small ac modulation was demonstrated.

Original language	English
Journal	IEEE Transactions on Magnetics
Volume	58
Issue number	2
DOIs	https://doi.org/10.1109/TMAG.2021.3085095
Publication status	Published - 2022 Feb 1

Keywords

AC modulation
hysteresis reduction
linear response
low-field detection
magnetic tunnel junction (MTJ)
tunneling magnetoresistive (TMR) sensor

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Electrical and Electronic Engineering

Access to Document

10.1109/TMAG.2021.3085095

Cite this

@article{735f56faed9942cc9a4f810c9618aca8,

title = "A Study of Hysteresis Reduction of Small AC Magnetic Field Modulated Tunneling Magnetoresistive Sensor",

abstract = "In this study, a hysteresis reduction technique for tunneling magnetoresistive (TMR) sensor for low magnetic field sensing is proposed, where a small ac modulation magnetic field is applied. The magnetic tunnel junctions (MTJs) were connected into an asymmetric Wheatstone bridge to form a sensor, and the output voltage of the TMR sensor was measured using a small ac modulation field and test field along the sensor's sensing direction. The results showed that hysteresis in the TMR sensor can be effectively reduced to exhibit a linear response. Further, the frequency response of the TMR sensor was studied. Finally, the feasibility of the TMR sensor for low-field detection with small ac modulation was demonstrated.",

keywords = "AC modulation, hysteresis reduction, linear response, low-field detection, magnetic tunnel junction (MTJ), tunneling magnetoresistive (TMR) sensor",

author = "Huang, {Han Sheng} and Liao, {Shu Hsien} and Yi Yang and Andrei Sokolov and Liu, {Yen Fu} and Xiaolu Yin and Viera, {Lucas Camponogara} and Liou, {Sy Hwang}",

note = "Publisher Copyright: {\textcopyright} 1965-2012 IEEE.",

year = "2022",

month = feb,

day = "1",

doi = "10.1109/TMAG.2021.3085095",

language = "English",

volume = "58",

journal = "IEEE Transactions on Magnetics",

issn = "0018-9464",

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

number = "2",

}

TY - JOUR

T1 - A Study of Hysteresis Reduction of Small AC Magnetic Field Modulated Tunneling Magnetoresistive Sensor

AU - Huang, Han Sheng

AU - Liao, Shu Hsien

AU - Yang, Yi

AU - Sokolov, Andrei

AU - Liu, Yen Fu

AU - Yin, Xiaolu

AU - Viera, Lucas Camponogara

AU - Liou, Sy Hwang

PY - 2022/2/1

Y1 - 2022/2/1

N2 - In this study, a hysteresis reduction technique for tunneling magnetoresistive (TMR) sensor for low magnetic field sensing is proposed, where a small ac modulation magnetic field is applied. The magnetic tunnel junctions (MTJs) were connected into an asymmetric Wheatstone bridge to form a sensor, and the output voltage of the TMR sensor was measured using a small ac modulation field and test field along the sensor's sensing direction. The results showed that hysteresis in the TMR sensor can be effectively reduced to exhibit a linear response. Further, the frequency response of the TMR sensor was studied. Finally, the feasibility of the TMR sensor for low-field detection with small ac modulation was demonstrated.

AB - In this study, a hysteresis reduction technique for tunneling magnetoresistive (TMR) sensor for low magnetic field sensing is proposed, where a small ac modulation magnetic field is applied. The magnetic tunnel junctions (MTJs) were connected into an asymmetric Wheatstone bridge to form a sensor, and the output voltage of the TMR sensor was measured using a small ac modulation field and test field along the sensor's sensing direction. The results showed that hysteresis in the TMR sensor can be effectively reduced to exhibit a linear response. Further, the frequency response of the TMR sensor was studied. Finally, the feasibility of the TMR sensor for low-field detection with small ac modulation was demonstrated.

KW - AC modulation

KW - hysteresis reduction

KW - linear response

KW - low-field detection

KW - magnetic tunnel junction (MTJ)

KW - tunneling magnetoresistive (TMR) sensor

UR - http://www.scopus.com/inward/record.url?scp=85107383334&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85107383334&partnerID=8YFLogxK

U2 - 10.1109/TMAG.2021.3085095

DO - 10.1109/TMAG.2021.3085095

M3 - Article

AN - SCOPUS:85107383334

SN - 0018-9464

VL - 58

JO - IEEE Transactions on Magnetics

JF - IEEE Transactions on Magnetics

IS - 2

ER -

A Study of Hysteresis Reduction of Small AC Magnetic Field Modulated Tunneling Magnetoresistive Sensor

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this