A pT/√Hz sensitivity ac magnetic field sensor based on magnetoelectric composites using low-loss piezoelectric single crystals

Venkateswarlu Annapureddy; Haribabu Palneedi; Woon Ha Yoon; Dong Soo Park; Jong Jin Choi; Byung Dong Hahn; Cheol Woo Ahn; Jong Woo Kim; Dae Yong Jeong; Jungho Ryu

doi:10.1016/j.sna.2017.04.017

A pT/√Hz sensitivity ac magnetic field sensor based on magnetoelectric composites using low-loss piezoelectric single crystals

Venkateswarlu Annapureddy, Haribabu Palneedi, Woon Ha Yoon, Dong Soo Park, Jong Jin Choi, Byung Dong Hahn, Cheol Woo Ahn, Jong Woo Kim, Dae Yong Jeong, Jungho Ryu

Korea Institute of Materials Science

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

53 Scopus citations

Abstract

This study reports of an ac magnetic field sensor with pT/√Hz sensitivity based on self-biased magnetoelectric composites made using piezoelectric Pb(Mg_1/3Nb_2/3)O₃-PbZrO₃-PbTiO₃ (PMN-PZT) single crystals in macro-fiber form and a magnetostrictive Ni plate. Variation in the loss properties of the PMN-PZT single crystals resulted in a substantial change in the magnetic field sensitivity of the ME based sensors. It was found that the loss factor of the piezoelectric layer was one of the key parameters affecting the magnetic field sensitivity. The ME composite sensor structure employing low-loss piezoelectric single crystals achieved a limit of detection (LOD) in the range of a few pT/√Hz at its resonance frequency (500 Hz). This magnitude of sensitivity is much higher than that offered bycommercially available magnetic sensors based on the giant magnetoresistance (GMR) effect or Hall-effect.

Original language	English
Pages (from-to)	206-211
Number of pages	6
Journal	Sensors and Actuators A: Physical
Volume	260
DOIs	https://doi.org/10.1016/j.sna.2017.04.017
State	Published - 15 Jun 2017

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Publisher Copyright:
© 2017 Elsevier B.V.

Keywords

Composite
Magnetic sensitivity
Magnetoelectric
Piezoelectric single crystal

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10.1016/j.sna.2017.04.017

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title = "A pT/√Hz sensitivity ac magnetic field sensor based on magnetoelectric composites using low-loss piezoelectric single crystals",

abstract = "This study reports of an ac magnetic field sensor with pT/√Hz sensitivity based on self-biased magnetoelectric composites made using piezoelectric Pb(Mg1/3Nb2/3)O3-PbZrO3-PbTiO3 (PMN-PZT) single crystals in macro-fiber form and a magnetostrictive Ni plate. Variation in the loss properties of the PMN-PZT single crystals resulted in a substantial change in the magnetic field sensitivity of the ME based sensors. It was found that the loss factor of the piezoelectric layer was one of the key parameters affecting the magnetic field sensitivity. The ME composite sensor structure employing low-loss piezoelectric single crystals achieved a limit of detection (LOD) in the range of a few pT/√Hz at its resonance frequency (500 Hz). This magnitude of sensitivity is much higher than that offered bycommercially available magnetic sensors based on the giant magnetoresistance (GMR) effect or Hall-effect.",

keywords = "Composite, Magnetic sensitivity, Magnetoelectric, Piezoelectric single crystal",

author = "Venkateswarlu Annapureddy and Haribabu Palneedi and Yoon, {Woon Ha} and Park, {Dong Soo} and Choi, {Jong Jin} and Hahn, {Byung Dong} and Ahn, {Cheol Woo} and Kim, {Jong Woo} and Jeong, {Dae Yong} and Jungho Ryu",

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year = "2017",

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day = "15",

doi = "10.1016/j.sna.2017.04.017",

language = "English",

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AU - Annapureddy, Venkateswarlu

AU - Palneedi, Haribabu

AU - Yoon, Woon Ha

AU - Park, Dong Soo

AU - Choi, Jong Jin

AU - Hahn, Byung Dong

AU - Ahn, Cheol Woo

AU - Kim, Jong Woo

AU - Jeong, Dae Yong

AU - Ryu, Jungho

PY - 2017/6/15

Y1 - 2017/6/15

N2 - This study reports of an ac magnetic field sensor with pT/√Hz sensitivity based on self-biased magnetoelectric composites made using piezoelectric Pb(Mg1/3Nb2/3)O3-PbZrO3-PbTiO3 (PMN-PZT) single crystals in macro-fiber form and a magnetostrictive Ni plate. Variation in the loss properties of the PMN-PZT single crystals resulted in a substantial change in the magnetic field sensitivity of the ME based sensors. It was found that the loss factor of the piezoelectric layer was one of the key parameters affecting the magnetic field sensitivity. The ME composite sensor structure employing low-loss piezoelectric single crystals achieved a limit of detection (LOD) in the range of a few pT/√Hz at its resonance frequency (500 Hz). This magnitude of sensitivity is much higher than that offered bycommercially available magnetic sensors based on the giant magnetoresistance (GMR) effect or Hall-effect.

AB - This study reports of an ac magnetic field sensor with pT/√Hz sensitivity based on self-biased magnetoelectric composites made using piezoelectric Pb(Mg1/3Nb2/3)O3-PbZrO3-PbTiO3 (PMN-PZT) single crystals in macro-fiber form and a magnetostrictive Ni plate. Variation in the loss properties of the PMN-PZT single crystals resulted in a substantial change in the magnetic field sensitivity of the ME based sensors. It was found that the loss factor of the piezoelectric layer was one of the key parameters affecting the magnetic field sensitivity. The ME composite sensor structure employing low-loss piezoelectric single crystals achieved a limit of detection (LOD) in the range of a few pT/√Hz at its resonance frequency (500 Hz). This magnitude of sensitivity is much higher than that offered bycommercially available magnetic sensors based on the giant magnetoresistance (GMR) effect or Hall-effect.

KW - Composite

KW - Magnetic sensitivity

KW - Magnetoelectric

KW - Piezoelectric single crystal

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JO - Sensors and Actuators A: Physical

JF - Sensors and Actuators A: Physical

ER -

A pT/√Hz sensitivity ac magnetic field sensor based on magnetoelectric composites using low-loss piezoelectric single crystals

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