Multilayered ceramic heterostructures of lead zirconate titanate and nickel-zinc ferrite for magnetoelectric sensor elements

2017 ◽  
Vol 266 ◽  
pp. 242-246 ◽  
Author(s):  
D.Yu Karpenkov ◽  
A.A. Bogomolov ◽  
A.V. Solnyshkin ◽  
A.Yu Karpenkov ◽  
V.I. Shevyakov ◽  
...  
2014 ◽  
Vol 1061-1062 ◽  
pp. 184-188 ◽  
Author(s):  
Hong Xia Cao ◽  
Qian Shi ◽  
Jia Yang You ◽  
Yu Fang ◽  
Huang Sun

By using a elastic mechanics model the transverse magnetoelectric voltage coefficient of magnetostrictive-piezoelectric bilayer is derived according to the constitutive equations. The transverse magnetoelectric coupling of nickel zinc ferrite-lead zirconate titanate (Ni0.8Zn0.2Fe2O4–Pb (Zr,Ti)O3, NZFO-PZT) layered composites were calculated by using the corresponding material parameters of individual phases. NZFO samples have been synthesized with sol–gel technique. Layered composites NZFO-PZT and NZFO-PZT-NZFO have been fabricated by binding discs of NZFO and commercially available PZT, and the transverse magnetoelectric effect have been investigated. The peak value of transverse magnetoelectric voltage coefficient for NZFO-PZT-NZFO trilayer reaches 252.4 mV/cmOe under a bias magnetic field of about 320 Oe, which is about three times as large as that of NZFO-PZT bilayer. The interface coupling parameter of trilayer is significantly higher than that of bilayer.


2015 ◽  
Vol 378 ◽  
pp. 285-290 ◽  
Author(s):  
Rekha Rani ◽  
J.K. Juneja ◽  
Sangeeta Singh ◽  
K.K. Raina ◽  
Chandra Prakash

2002 ◽  
Vol 124 (10-11) ◽  
pp. 373-378 ◽  
Author(s):  
G. Srinivasan ◽  
V.M. Laletsin ◽  
R. Hayes ◽  
N. Puddubnaya ◽  
E.T. Rasmussen ◽  
...  

2007 ◽  
Vol 22 (8) ◽  
pp. 2130-2135 ◽  
Author(s):  
V. Gheevarughese ◽  
U. Laletsin ◽  
V.M. Petrov ◽  
G. Srinivasan ◽  
N.A. Fedotov

The nature of magnetoelectric (ME) interactions has been investigated in lead zirconate titanate (PZT) and (111) or (110) single-crystal nickel zinc ferrites. Data on the dependence of low-frequency ME voltage coefficients on static magnetic field orientation show (i) highest ME coefficients for bias field H along [100] and the smallest for H parallel to [110] and (ii) strongest ME interactions for transverse fields and for samples with Zn concentration of 0.3. Measurements on frequency dependence of ME coefficients reveal resonance enhancement due to bending and radial acoustic modes. The highest voltage coefficient is measured for radial modes in a sample with Zn concentration of 0.2. Theoretical estimates of low-frequency and resonance ME parameters are in very good agreement with data.


Author(s):  
M.L.A. Dass ◽  
T.A. Bielicki ◽  
G. Thomas ◽  
T. Yamamoto ◽  
K. Okazaki

Lead zirconate titanate, Pb(Zr,Ti)O3 (PZT), ceramics are ferroelectrics formed as solid solutions between ferroelectric PbTiO3 and ant iferroelectric PbZrO3. The subsolidus phase diagram is shown in figure 1. PZT transforms between the Ti-rich tetragonal (T) and the Zr-rich rhombohedral (R) phases at a composition which is nearly independent of temperature. This phenomenon is called morphotropism, and the boundary between the two phases is known as the morphotropic phase boundary (MPB). The excellent piezoelectric and dielectric properties occurring at this composition are believed to.be due to the coexistence of T and R phases, which results in easy poling (i.e. orientation of individual grain polarizations in the direction of an applied electric field). However, there is little direct proof of the coexistence of the two phases at the MPB, possibly because of the difficulty of distinguishing between them. In this investigation a CBD method was found which would successfully differentiate between the phases, and this was applied to confirm the coexistence of the two phases.


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