Lead zirconate titanate (PZT) nanopowders with spherical-shaped morphology, perovskite structure and an average size of 20 nm were successfully synthesized. The prepared PZT nanopowders were characterized by differential thermal analysis (DTA), X-ray diffraction (XRD), scanning electron microscopy (SEM), Energy dispersive X-ray (EDS) and Transmission electron microscopy (TEM) technique. Single-...

Magnetoelectric material-based cantilever resonators have been considered as a promising solution for magnetic sensing applications. However, most applications focus on bulk piezoelectric (e.g., PZT) laminated composites, which put critical limit miniaturizing into micrometer-sized devices. This work aims at demonstrating the potential of micro-resonator approach with lower power consumption an...

The in-plane dielectric and ferroelectric properties of preferentially oriented lead zirconate titanate (PZT) thin films are characterized using interdigitated transducers (IDTs). By combining finite element method simulations capacitance measurements, values the constant with thicknesses between 150 nm 800 obtained. A modified Sawyer–Tower circuit is used to investigate polarization loops meas...

Acoustic Black Hole (ABH) phenomenon features unique wave retarding and energy focusing of flexural waves inside thin-walled structures whose thickness follows a power-law variation. Existing studies, mostly on linear aspects, show the deficiency ABH in coping with low-frequency problems, typically below so-called cut-on frequency. In this paper, electrical nonlinearities are intentionally impo...

In this study, PbZr0.52Ti0.48O3/BaTiO3 (PZT/BTO) multilayers with varying layer fractions were deposited on Pt/Ti/SiO2/Si substrates by sol–gel process. The films characterized X-ray diffraction and scanning electron microscopy (SEM). result shows that there exists a dielectric enhancement when the BTO fraction x is around 0.5, at fraction, constant of PZT/BTO 590 100 kHz, which far more than m...

In this paper we report a novel capillary-force-driven selfassembly technique which proceeds in an air environment. We demonstrate this technique for the self-assembly of piezoelectric driving elements (PZT) for diffuser valve micropumps: with the agitation of an orbital shaker, square PZT actuators self-align and mount to the hydrophilic trench binding sites with electric connections by heat c...

We deposited a lead zirconate titanete (PZT) polycrystalline film on a titanium substrate by the hydrothermal method and fabricated a transducer using the PZT film for use as an ultrasound probe. A 10MHz miniature one-dimensional-array medical ultrasound probe containing the PZT film was developed. After sputtering titanium on the surface of a hydroxyapatite substrate, the titanium film on the ...

We have deposited nearly stress-free single-crystal thin films of 001 Pb Mn,Nb O3–Pb Zr,Ti O3 PMnN-PZT on 001 MgO substrates by rf-magnetron sputtering using a quenching process after the film growth. It is found that single c-domain/single-crystal thin films of PMnN-PZT containing 5%–10% PMnN show a strong hard ferroelectric response with 2Ec 400 kV /cm and Ps 70 C /cm2. GHz-range film bulk ac...

We investigate coherent phonon propagation in a thin film of ferroelectric PbZr(0.2)Ti(0.8)O(3) (PZT) by ultrafast x-ray diffraction experiments, which are analyzed as time-resolved reciprocal space mapping in order to observe the in- and out-of-plane structural dynamics, simultaneously. The mosaic structure of the PZT leads to a coupling of the excited out-of-plane expansion to in-plane lattic...