TY  - JOUR
ID  - SisLab4089
UR  - https://eprints.uet.vnu.edu.vn/eprints/id/eprint/4089/
A1  - Trinh, Dinh Cuong
A1  - Nguyen, Viet Hung
A1  - Vu, Le Ha
A1  - Phung, Anh Tuan
A1  - Do, Dinh Duong
A1  - Ho, Anh Tam
A1  - Nguyen, Huu Duc
A1  - Do, Thi Huong Giang
Y1  - 2020/07/03/
N2  - 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.
PB  - Elsevier B.V
JF  - Journal of Science: Advanced Materials and Devices
VL  - 5
SN  - 2468-2179
TI  - Giant magnetoelectric effects in serial-parallel connected Metglas/PZT arrays with magnetostrictively homogeneous laminates
SP  - 354
AV  - public
EP  - 360
ER  -