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*

*此作品的通信作者

    研究成果: 雜誌貢獻期刊論文同行評審

    摘要

    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.

    原文英語
    文章編號9143198
    期刊IEEE Transactions on Magnetics
    57
    發行號2
    DOIs
    出版狀態已發佈 - 2021 二月

    ASJC Scopus subject areas

    • 電子、光磁材料
    • 電氣與電子工程

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