Atomically clean lead zirco-titanate PbZr0.2Ti0.8O3 (001) layers exhibit a polarization oriented inwards P(-), visible by a band bending of all core levels towards lower binding energies, whereas as introduced layers exhibit P(+) polarization under air or in ultrahigh vacuum. The magnitude of the inwards polarization decreases when the temperature is increased at 700 K. CO adsorption on P(-) po...

Lead zirconate titanate (Pb(1.1)(Zr(0.52)Ti(0.48))O(3)) thin films of thickness 260 nm on Pt/Ti/SiO(2)/Si substrates were densified by 2.45 GHz microwave annealing. The PZT thin films were annealed at various annealing temperatures from 400 to 700 °C for 30 min. X-ray diffraction showed that the pyrochlore phase was transformed to the perovskite phase at 450 °C and the film was fully crystalliz...

We demonstrate a pyroelectric nanogenerator (PENG) based on a lead zirconate titanate (PZT) film, which has a pyroelectric coefficient of about -80 nC/cm(2)K. For a temperature change of 45 K at a rate of 0.2 K/s, the output open-circuit voltage and short-circuit current density of the PENG reached 22 V and 171 nA/cm(2), respectively, corresponding to a maximum power density of 0.215 mW/cm(3). ...

Multiferroics are currently intensely investigated because the coexistence and coupling of ferroic arrangements brings about new physical effects and, for the few room-temperature examples, interesting prospects for applications in various fields. This interest is illustrated by the recent publication of several articles on multiferroics in high impact reviews over the last five years. The main...

The creation of new non-toxic materials that combines high osteointegration and strength characteristics is an urgent contemporary challenge. use complex oxides, such as lanthanum zirconate (La2Zr2O7), non-reservable alloplastic implant a novel promising way fulfilling this In work, the ceramic based on undoped alkali-earth (Ca, Sr) doped La2Zr2O7 were obtained. main physical chemical determine...

Creation of new ceramic materials for the bone augmentation purposes that combine absence cytotoxicity, high strength and osseointegration characteristics is an urgent modern task. In this work, cytocompatibility based on lanthanum zirconate (La2Zr2O7) was determined to assess prospects their use as implants components human joint endoprostheses. The effect undoped alkali-earth (Ca, Sr) doped L...