Results 61 to 70 of about 23,268 (183)
Non-linear macroscopic polarization in III-V nitride alloys
, 2001 We study the dependence of macroscopic polarization on composition and strain in wurtzite III-V nitride ternary alloys using ab initio density-functional techniques.
A. Di Carlo +30 more
core +1 more source
Engineering ProceedingsModeling the inverse impact of piezoelectricity on the mechanical response of smart (piezoelectric) materials through the finite element method (FEM) requires a comprehensive framework that encompasses a multitude of components and intricacies.
Mehdi Boudouh +3 more
doaj +1 more source
Strain gradient induced polarization in SrTiO3 single crystals
, 2007 Piezoelectricity is inherent only in noncentrosymmetric materials, but a piezoelectric response can also be obtained in centrosymmetric crystals if subjected to inhomogeneous deformation. This phenomenon, known as flexoelectricity, affects the functional
A. Buckley +10 more
core +1 more source
Advanced Piezoelectric Materials, Devices, and Systems for Orthopedic Medicine
Advanced ScienceHarnessing the robust electromechanical couplings, piezoelectric materials not only enable efficient bio‐energy harvesting, physiological sensing and actuating but also open enormous opportunities for therapeutic treatments through surface polarization ...
Jingkai Zhang +5 more
doaj +1 more source
, 2005 We find an unexpected tetragonal-to-monoclinic-to-rhombohedral-to-cubic phase transition sequence induced by pressure, and a morphotropic phase boundary in a pure compound using first-principles calculations.
D. J. Singh +4 more
core +1 more source
An investigation of PDMS structures for optimized ferroelectret performance
, 2014 This paper reports the ANSYS simulation and fabrication processes for optimising PDMS ferroelectret performance. The proposed model extends the previously published analytical models and compares this with simulation of individual void geometry.
Beeby, S.P., Shi, Junjie, Zhu, Dibin
core +1 more source
Propagation of extensional waves in a piezoelectric semiconductor rod
AIP Advances, 2016 We studied the propagation of extensional waves in a thin piezoelectric semiconductor rod of ZnO whose c-axis is along the axis of the rod. The macroscopic theory of piezoelectric semiconductors was used which consists of the coupled equations of ...
C.L. Zhang +3 more
doaj +1 more source
Shielding electrostatic fields in polar semiconductor nanostructures
, 2016 Modern opto-electronic devices are based on semiconductor heterostructures employing the process of electron-hole pair annihilation. In particular polar materials enable a variety of classic and even quantum light sources, whose on-going optimisation ...
Callsen, G. +3 more
core +1 more source
Effects of macroscopic polarization in III-V nitride multi-quantum-wells
, 1999 Huge built-in electric fields have been predicted to exist in wurtzite III-V nitrides thin films and multilayers. Such fields originate from heterointerface discontinuities of the macroscopic bulk polarization of the nitrides.
A. Di Carlo +37 more
core +1 more source
Influence of corona charging in cellular polyethlene film
, 2011 [En] Cellular polymers have recently attracted attention for their property of exhibiting a piezoelectric constant when they are electrically charged.
Llovera Segovia, Pedro +3 more
core +1 more source