Magnetic flux modulation with electric controlled permeability for magnetoresistive sensor

Yulu Che; Jiafei Hu; Long Pan; Peisen Li; Mengchun Pan; Dixiang Chen; Kun Sun; Xinmiao Zhang; Qingfa Du; Yang Yu; Yueguo Hu; Minhui Ji; Lan Yang; Junping Peng; Weicheng Qiu; Qi Zhang

doi:10.1063/5.0023826

AIP Advances (Oct 2020)

Magnetic flux modulation with electric controlled permeability for magnetoresistive sensor

Yulu Che,
Jiafei Hu,
Long Pan,
Peisen Li,
Mengchun Pan,
Dixiang Chen,
Kun Sun,
Xinmiao Zhang,
Qingfa Du,
Yang Yu,
Yueguo Hu,
Minhui Ji,
Lan Yang,
Junping Peng,
Weicheng Qiu,
Qi Zhang

Affiliations

Yulu Che: College of Intelligence Science and Technology, National University of Defense Technology, Changsha 410073, China
Jiafei Hu: College of Intelligence Science and Technology, National University of Defense Technology, Changsha 410073, China
Long Pan: College of Intelligence Science and Technology, National University of Defense Technology, Changsha 410073, China
Peisen Li: College of Intelligence Science and Technology, National University of Defense Technology, Changsha 410073, China
Mengchun Pan: College of Intelligence Science and Technology, National University of Defense Technology, Changsha 410073, China
Dixiang Chen: College of Intelligence Science and Technology, National University of Defense Technology, Changsha 410073, China
Kun Sun: College of Intelligence Science and Technology, National University of Defense Technology, Changsha 410073, China
Xinmiao Zhang: College of Intelligence Science and Technology, National University of Defense Technology, Changsha 410073, China
Qingfa Du: College of Intelligence Science and Technology, National University of Defense Technology, Changsha 410073, China
Yang Yu: College of Intelligence Science and Technology, National University of Defense Technology, Changsha 410073, China
Yueguo Hu: College of Intelligence Science and Technology, National University of Defense Technology, Changsha 410073, China
Minhui Ji: College of Intelligence Science and Technology, National University of Defense Technology, Changsha 410073, China
Lan Yang: College of Intelligence Science and Technology, National University of Defense Technology, Changsha 410073, China
Junping Peng: College of Intelligence Science and Technology, National University of Defense Technology, Changsha 410073, China
Weicheng Qiu: College of Intelligence Science and Technology, National University of Defense Technology, Changsha 410073, China
Qi Zhang: College of Intelligence Science and Technology, National University of Defense Technology, Changsha 410073, China

DOI: https://doi.org/10.1063/5.0023826
Journal volume & issue: Vol. 10, no. 10
pp. 105032 – 105032-6

Abstract

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Owing to the attractive advantages of the simple preparation process, convenient frequency adjustment, and stable mechanical structure, magnetic flux modulation with electric controlled permeability exhibits a better performance in the reduction of 1/f noise for magnetoresistive (MR) sensors than other schemes of magnetic flux modulation. However, the magnetic flux electric modulation (MFEM) has not been experimentally verified. In this work, a prototype of the MFEM structure was established by preparing an FeGaB film on a Pb(Mg1/3Nb2/3)0.7O3–PbTi0.3O3 substrate, and the modulation structure was integrated into an MR sensor. A test system was built to evaluate the modulation efficiency of the MFEM structure, and the results showed that the modulation efficiency reached 9.8% with an applied electric field of 2 kV/cm at a frequency of 10 010 Hz. Meanwhile, experiments were carried out to study the effects of driving electric fields’ amplitude and frequency on modulation efficiency, and it was revealed that the modulation efficiency could be further improved by increasing the amplitude of driving voltage and reducing the thickness of the ferroelectric layer.

Published in AIP Advances

ISSN: 2158-3226 (Online)
Publisher: AIP Publishing LLC
Country of publisher: United States
LCC subjects: Science: Physics
Website: http://aipadvances.aip.org/

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