Hysteresis Reduction in Tunneling Magnetoresistive Sensor with AC Modulation Magnetic Field

Shu Hsien Liao; Han Sheng Huang; Andrei Sokolov; Yi Yang; Yen Fu Liu; Xiaolu Yin; Amy Wilson; Joshua Trujillo; Dan Ewing; Sy Hwang Liou

doi:10.1109/TMAG.2020.3009900

Hysteresis Reduction in Tunneling Magnetoresistive Sensor with AC Modulation Magnetic Field

Shu Hsien Liao
, Han Sheng Huang
, Andrei Sokolov
, Yi Yang
, Yen Fu Liu
, Xiaolu Yin
, Amy Wilson
, Joshua Trujillo
, Dan Ewing
, Sy Hwang Liou^*

^*Corresponding author for this work

Undergraduate Program of Electro-Optical Engineering

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

10 Citations (Scopus)

Abstract

A simple and practical ac modulation method to reduce the hysteresis in tunneling magnetoresistive (TMR) sensor is demonstrated. It is shown that with a suitable ac modulation magnetic field that is applied along the sensing direction of the TMR sensor, the hysteresis in the sensor can be reduced to a negligible level. Also, depending on the amplitude of the modulation field, the sensitivity and the dynamic range of the TMR sensor can be tuned to meet practical requirements in specific applications. The influence of the modulation on the noise of TMR sensor is also studied.

Original language	English
Article number	9143198
Journal	IEEE Transactions on Magnetics
Volume	57
Issue number	2
DOIs	https://doi.org/10.1109/TMAG.2020.3009900
Publication status	Published - 2021 Feb

Keywords

AC modulation
dynamic range
hysteresis reduction
magnetic tunnel junction (MTJ)
tunneling magnetoresistive (TMR) sensor

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Electrical and Electronic Engineering

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10.1109/TMAG.2020.3009900

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title = "Hysteresis Reduction in Tunneling Magnetoresistive Sensor with AC Modulation Magnetic Field",

abstract = "A simple and practical ac modulation method to reduce the hysteresis in tunneling magnetoresistive (TMR) sensor is demonstrated. It is shown that with a suitable ac modulation magnetic field that is applied along the sensing direction of the TMR sensor, the hysteresis in the sensor can be reduced to a negligible level. Also, depending on the amplitude of the modulation field, the sensitivity and the dynamic range of the TMR sensor can be tuned to meet practical requirements in specific applications. The influence of the modulation on the noise of TMR sensor is also studied.",

keywords = "AC modulation, dynamic range, hysteresis reduction, magnetic tunnel junction (MTJ), tunneling magnetoresistive (TMR) sensor",

author = "Liao, \{Shu Hsien\} and Huang, \{Han Sheng\} and Andrei Sokolov and Yi Yang and Liu, \{Yen Fu\} and Xiaolu Yin and Amy Wilson and Joshua Trujillo and Dan Ewing and Liou, \{Sy Hwang\}",

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doi = "10.1109/TMAG.2020.3009900",

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T1 - Hysteresis Reduction in Tunneling Magnetoresistive Sensor with AC Modulation Magnetic Field

AU - Liao, Shu Hsien

AU - Huang, Han Sheng

AU - Sokolov, Andrei

AU - Yang, Yi

AU - Liu, Yen Fu

AU - Yin, Xiaolu

AU - Wilson, Amy

AU - Trujillo, Joshua

AU - Ewing, Dan

AU - Liou, Sy Hwang

PY - 2021/2

Y1 - 2021/2

N2 - A simple and practical ac modulation method to reduce the hysteresis in tunneling magnetoresistive (TMR) sensor is demonstrated. It is shown that with a suitable ac modulation magnetic field that is applied along the sensing direction of the TMR sensor, the hysteresis in the sensor can be reduced to a negligible level. Also, depending on the amplitude of the modulation field, the sensitivity and the dynamic range of the TMR sensor can be tuned to meet practical requirements in specific applications. The influence of the modulation on the noise of TMR sensor is also studied.

AB - A simple and practical ac modulation method to reduce the hysteresis in tunneling magnetoresistive (TMR) sensor is demonstrated. It is shown that with a suitable ac modulation magnetic field that is applied along the sensing direction of the TMR sensor, the hysteresis in the sensor can be reduced to a negligible level. Also, depending on the amplitude of the modulation field, the sensitivity and the dynamic range of the TMR sensor can be tuned to meet practical requirements in specific applications. The influence of the modulation on the noise of TMR sensor is also studied.

KW - AC modulation

KW - dynamic range

KW - hysteresis reduction

KW - magnetic tunnel junction (MTJ)

KW - tunneling magnetoresistive (TMR) sensor

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DO - 10.1109/TMAG.2020.3009900

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SN - 0018-9464

VL - 57

JO - IEEE Transactions on Magnetics

JF - IEEE Transactions on Magnetics

IS - 2

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ER -

Hysteresis Reduction in Tunneling Magnetoresistive Sensor with AC Modulation Magnetic Field

Abstract

Keywords

ASJC Scopus subject areas

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