Publication
Correlation between dielectric anisotropy and positive or zero transverse piezoelectric coefficients in perovskite ferroelectric single crystals
Related publications (93)
Characterization of Suspended Piezoelectrically Transduced Resonators
This report presents the characterization of singly-clamped and doubly-clamped resonator devices. Resistance tests were performed to ensure adequate top-to-bottom insulation, allowing the characterization work to proceed. The piezoelectric characteristics ...
2023Thermal coarsening of individual titanate nanowires and their assemblies: Surface vs. bulk diffusion
László Forró, Luca Rossi, Endre Horvath, Sergiy Katrych, Massimo Spina, Laurent Syavoch Bernard, Xavier Berdat
The thermal coarsening of titanate nanowires was investigated from room temperature to 1000 degrees C by AFM, SEM, XRD and Raman spectroscopy. Phase transformation kinetics and the external morphology were studied in two configurations: i) as individual an ...
2020Stretchable piezoelectric elastic composites for sensors and energy generators
Dragan Damjanovic, Frank Nüesch, Tym De Wild, Jose Enrico Quijano Quinsaat
The search for a piezoelectric elastomer that generates an electrical signal when pressed and stretched has increased significantly in the last decade as they hold great promise in harvesting energy from human motion and monitoring human activities. Here, ...
2020Characterization methodology for lead zirconate titanate thin films with interdigitated electrode structures
Paul Muralt, Robin Nigon, Trygve Magnus Raeder
The accurate evaluation of ferroelectric thin films operated with interdigitated electrodes is quite a complex task. In this article, we show how to correct the electric field and the capacitance in order to obtain identical polarization and CV loops for a ...
Amer Inst Physics2017Domain Pinning: Comparison of Hafnia and PZT Based Ferroelectrics
Even though many studies on the field cycling behavior of ferroelectric hafnium oxide have recently been published, the issue is still not fully understood. The initial increase of polarization during first cycles is explained by different theoretical and ...
Wiley2017Structure and pressure-induced ferroelectric phase transition in antiphase domain boundaries of strontium titanate from first principles
Nava Setter, Alexander Tagantsev, Alexander Kvasov
In this work, using zero kelvin ab initio calculations, we revisit the structure and ferroelectric phase transition in antiphase domain boundaries (APBs) in SrTiO3 (STO), which has been previously addressed in terms of a phenomenological approach. We confi ...
Amer Physical Soc2016Symmetry breaking in hexagonal and cubic polymorphs of BaTiO3
Dragan Damjanovic, Alberto Biancoli
BaTiO3 appears in cubic and hexagonal variants, both of which are centrosymmetric. Samples of cubic BaTiO3 are known to exhibit breaking of the centric symmetry locally and globally. It has been proposed that the local symmetry breaking originates in polar ...
American Institute of Physics2016Piezoelectric enhancement under negative pressure
Nava Setter, Alexander Tagantsev, Tomas Sluka, Alexander Kvasov, Silviu Cosmin Sandu, Jin Wang
Enhancement of ferroelectric properties, both spontaneous polarization and Curie temperature under negative pressure had been predicted in the past from first principles and recently confirmed experimentally. In contrast, piezoelectric properties are expec ...
Nature Publishing Group2016What is a ferroelectric-a materials designer perspective
Ferroelectrics are usually defined as polar materials that display polarisation hysteresis. This is a functional definition. A structural definition exists too, based solely on symmetry arguments. The structural definition, useful e.g. for design of new ma ...
Taylor & Francis Ltd2016Monocrystalline PZT thin films
"More with less" has been the motto behind the hardware miniaturization trend in the microelectronics industry since the 1970s. Active research in the growth of oxide films, including ferroelectrics, which started soon after, followed the same trend. Meanw ...
EPFL2015