Publications associées à Evidence of domain wall contribution to the dielectric permittivity in PZT thin films at sub-switching fields

Synthesis of polysiloxane elastomers modified with sulfonyl side groups and their electromechanical response

Dielectric elastomer transducers are elastic capacitors that respond to mechanical or electrical stress. They can be used in applications such as millimeter-sized soft robots and harvesters of the energy contained in ocean waves. The dielectric component o ...

ROYAL SOC CHEMISTRY2023

Stress effects on the impedance and ferroelectricity of PVDF-BiFeO3-MWCNT films using xanthan gum as dispersant

Frank Nüesch, Francis Owusu

Composite films based on dispersions of bismuth ferrite (BiFeO3) in polyvinylidene fluoride (PVDF) matrixes were prepared in the presence of multiwalled-carbon-nanotubes (MWCNT), using xanthan gum (XG) as dispersant. Films were prepared by spin coating and ...

ELSEVIER SCIENCE SA2022

Large Anomalous Nernst Angle in Co2MnGa Thin Film

Jean-Philippe Ansermet, Haiming Yu, Simon Granville, Junfeng Hu, Yao Zhang, Song Liu

The new trends for anomalous Nernst effect (ANE)-based thermoelectric devices require materials with large ANE values to realize the scalable generation of voltage. Recently, very large ANE values have been observed in single crystals of some novel magneti ...

IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC2022

Individual Barkhausen pulses of ferroelastic nanodomains

Dragan Damjanovic, Vasiliki Tileli, Reinis Ignatans

Ferroelectric materials, upon electric field biasing, display polarization discontinuities known as Barkhausen jumps, a subclass of a more general phenomenon known as crackling noise. Herein, we follow at the nanoscale the motion of 90 degree needle domain ...

2020

Interface-Dominated Time-Dependent Behavior of Poled Poly(Vinylidene Fluoride–Trifluoroethylene)/Barium Titanate Composites

Véronique Michaud, Yves Leterrier, Dragan Damjanovic, Sara Dalle Vacche

Composites in which particles of ferroelectric ceramic phase are randomly dispersed in a polymeric matrix are of interest because of flexibility, conformability, and ease of processing. However, their piezoelectric properties are rather low, unless very hi ...

2020

Al0.83Sc0.17N Contour-Mode Resonators With Electromechanical Coupling in Excess of 4.5%

Paul Muralt, Luis Guillermo Villanueva Torrijo, Andrea Lozzi

In this paper, we demonstrate the fabrication of contour-mode resonators (CMRs) with Al0.83Sc0.17N as a piezoelectric layer. Moreover, we assess the electromechanical coupling and the maximum achieved quality factor from 150 to 500 MHz. In comparison to pu ...

2019

Identification of microscopic domain wall motion from temperature dependence of nonlinear dielectric response

Tomas Sluka, Pavel Mokry

It is known that the permittivity of ferroelectric polydomain films and single crystals in weak electric fields is strongly enhanced by the reversible movement of pinned domain walls. Two mechanisms of the movement exist: first, the bending of free segment ...

Amer Inst Physics2017

Piezoelectric softening by Nb substitution in (Ba,Pb)ZrO

Nava Setter, Nicola Marzari, Dragan Damjanovic, Alberto Biancoli, David Bahati

Donor doping is commonly applied for softening of the piezoelectric and dielectric properties and facilitation of polarization switching in the ubiquitous Pb(Zr,Ti)O-3 [PZT] ceramics. The origin of the donor-dopant effects is not entirely clear. (Pb,Ba)ZrO ...

Wiley-Blackwell2017

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Evidence of domain wall contribution to the dielectric permittivity in PZT thin films at sub-switching fields

Pyroelectricity in poled all-organic polar polynorbornene/polydimethylsiloxane-based stretchable electrets

Synthesis of polysiloxane elastomers modified with sulfonyl side groups and their electromechanical response

Stress effects on the impedance and ferroelectricity of PVDF-BiFeO3-MWCNT films using xanthan gum as dispersant

Large Anomalous Nernst Angle in Co2MnGa Thin Film

Individual Barkhausen pulses of ferroelastic nanodomains

Interface-Dominated Time-Dependent Behavior of Poled Poly(Vinylidene Fluoride–Trifluoroethylene)/Barium Titanate Composites

Dielectric Actuation Techniques at the Nanoscale: Piezoelectricity and Flexoelectricity

Al0.83Sc0.17N Contour-Mode Resonators With Electromechanical Coupling in Excess of 4.5%

Identification of microscopic domain wall motion from temperature dependence of nonlinear dielectric response

Piezoelectric softening by Nb substitution in (Ba,Pb)ZrO

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Chattez avec Graph Search

Pyroelectricity in poled all-organic polar polynorbornene/polydimethylsiloxane-based stretchable electrets

Synthesis of polysiloxane elastomers modified with sulfonyl side groups and their electromechanical response

Stress effects on the impedance and ferroelectricity of PVDF-BiFeO3-MWCNT films using xanthan gum as dispersant

Large Anomalous Nernst Angle in Co2MnGa Thin Film

Individual Barkhausen pulses of ferroelastic nanodomains

Piezoelectric softening by Nb substitution in (Ba,Pb)ZrO

Identification of microscopic domain wall motion from temperature dependence of nonlinear dielectric response

Al0.83Sc0.17N Contour-Mode Resonators With Electromechanical Coupling in Excess of 4.5%

Dielectric Actuation Techniques at the Nanoscale: Piezoelectricity and Flexoelectricity

Interface-Dominated Time-Dependent Behavior of Poled Poly(Vinylidene Fluoride–Trifluoroethylene)/Barium Titanate Composites