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*

*此作品的通信作者

研究成果: 雜誌貢獻期刊論文同行評審

3 引文 斯高帕斯(Scopus)

摘要

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.

原文英語
期刊IEEE Transactions on Magnetics
58
發行號2
DOIs
出版狀態已發佈 - 2022 2月 1

ASJC Scopus subject areas

  • 電子、光磁材料
  • 電氣與電子工程

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