Trinh, Dinh Cuong and Nguyen, Viet Hung and Vu, Le Ha and Phung, Anh Tuan and Do, Dinh Duong and Ho, Anh Tam and Nguyen, Huu Duc and Do, Thi Huong Giang (2020) Giant magnetoelectric effects in serial-parallel connected Metglas/PZT arrays with magnetostrictively homogeneous laminates. Journal of Science: Advanced Materials and Devices, 5 . pp. 354-360. ISSN 2468-2179
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Abstract
To ensure the magnetostrictive softness, the homogeneity, the decrease of the shear-lag effect and the space-saving construction of narrowed longitudinal-transverse L-T magnetoelectric (ME) composites, a novel parallel-connected-multi-bars (PCMB) geometry of PZT/Metglas is proposed and investigated by simulation and experiment. In this case, Metglas layers are structured in different geometries from the conventional single bar (c-SB) to conventional separated multiple bars (c-SMB), elongated separate multi-bar (e-SMB) and n-magnetic-bar based PCMB (n-PCMB). This n-PCMB geometry divides the conventional ME configuration into n parallel-connected ME units (n-PCMEU) according to the magnetic geometries. The optimal ME performance with the largest ME voltage coefficient aE of 630 V/cm.Oe is achieved in PCMEU with two Metglas bars (n = 2). The ME voltage coefficient can be further enhanced by integrating m of these optimal PCMEUs in series to form a serial-parallel ME unit array m-S (n-PMEU)A. The aE value increases by a factor of 3.6 and reaches 2.238 kV/cm.Oe for 4-S (2-PMEU)A, a factor that is almost equal to m. The resulting 4-S (2-PMEU)A sensor possesses an extremely high sensitivity of 18.1 mV/nT, with a resolution of 10�1 nT.
| Item Type: | Article |
|---|---|
| Subjects: | Engineering Physics ISI-indexed journals |
| Divisions: | Faculty of Engineering Physics and Nanotechnology (FEPN) |
| Depositing User: | Dr Giang Do |
| Date Deposited: | 30 Nov 2020 07:03 |
| Last Modified: | 30 Nov 2020 07:03 |
| URI: | http://eprints.uet.vnu.edu.vn/eprints/id/eprint/4089 |
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