Results 11 to 20 of about 63,457 (174)

Optical properties of cubic and rhombohedral GeTe [PDF]

open access: yes, 2013
Calculations of the optical properties of GeTe in the cubic NaCl and rhombohedral ferroelectric structures are reported. The rhombohedral ferroelectric distortion increases the band gap from 0.11 eV to 0.38 eV.
Singh, David J.
core   +1 more source

Bandgap modulation and phase boundary region of multiferroic Gd, Co co-doped BiFeO3 thin film

open access: yesAIP Advances, 2023
Ferroelectric polarization is a crucial factor to induce photovoltaic effect in ferroelectric materials. Here, a novel modulation of bandgap by Gd and Co co-doped BFO is found for a polycrystalline Bi0.9Gd0.1Fe0.85Co0.15O3 thin film prepared by the sol ...
Yuanyuan Xu, Chaoyong Deng, Xu Wang
doaj   +1 more source

Nanoscale Doping and Its Impact on the Ferroelectric and Piezoelectric Properties of Hf0.5Zr0.5O2

open access: yesNanomaterials, 2022
Ferroelectric hafnium oxide thin films—the most promising materials in microelectronics’ non-volatile memory—exhibit both unconventional ferroelectricity and unconventional piezoelectricity.
Anastasia Chouprik   +5 more
doaj   +1 more source

Misfit strain dependence of ferroelectric and piezoelectric properties of clamped (001) epitaxial Pb(Zr0.52,Ti0.48)O3 thin films \ud [PDF]

open access: yes, 2011
A study on the effects of the residual strain in Pb(Zr0.52Ti0.48)O3 (PZT) thin films on the ferroelectric and piezoelectric properties is presented. Epitaxial (001)-oriented PZT thin film capacitors are sandwiched between SrRuO3 electrodes. The thin film
Dekkers, Jan M.   +8 more
core   +3 more sources

Optically Induced Ferroelectric Polarization Switching in a Molecular Ferroelectric with Reversible Photoisomerization

open access: yesAdvanced Science, 2021
Ferroelectrics usually exhibit temperature‐triggered structural changes, which play crucial roles in controlling their physical properties. However, although light is very striking as a non‐contact, non‐destructive, and remotely controlled external ...
Wei‐Qiang Liao   +6 more
doaj   +1 more source

Universal Properties of Ferroelectric Domains

open access: yesPhysical Review Letters, 2009
Basing on Ginzburg-Landau approach we generalize the Kittel theory and derive the interpolation formula for the temperature evolution of a multi-domain polarization profile P(x,z). We resolve the long-standing problem of the near-surface polarization behavior in ferroelectric domains and demonstrate the polarization vanishing instead of usually assumed
Lukyanchuk, Igor A.   +2 more
openaire   +3 more sources

Some lead-free ceramics of ferroelectric andphotoelectrochemical applications

open access: yesMaterials and Devices, 2016
The main ferroelectric materials are lead-based which cause serious environmental problem. Then, to develop environment friendly materials, lead-free ceramics derived from BaTiO3 were found to be interesting owing to their attractive ferroelectric ...
N. Bensemma   +3 more
doaj   +1 more source

MoS2-based ferroelectric field-effect transistor with atomic layer deposited Hf0.5Zr0.5O2 films toward memory applications

open access: yesAIP Advances, 2020
Recently, hafnium oxide (HfO2)-based ferroelectric materials have achieved phenomenal success in next-generation nonvolatile memory applications.
Ming-Yang Cha   +7 more
doaj   +1 more source

Morphology and Ferroelectric Properties of Semiconducting/Ferroelectric Polymer Bilayers [PDF]

open access: yesMacromolecules, 2019
Bilayers of the ferroelectric polymer poly(vinylidene fluoride-trifluoroethylene), P(VDF-TrFE) on semiconducting poly(3-hexyl thiophene) substrates have been prepared by sequential spin-coating. Here, we present a study of the polarization of this ferroelectric/semiconducting bilayer as a function of the semiconductor thickness by piezoresponse force ...
Edgar Gutiérrez-Fernández   +4 more
openaire   +2 more sources

Ferroelectric Instability and Dimensionality in Bi-Layered Perovskites and Thin Films

open access: yesAdvances in Condensed Matter Physics, 2012
The dielectric and thermal properties of Bi (bismuth)-layered perovskite SrBi2Ta2O9 (SBT) are discussed in comparison with ferroelectric thin BaTiO3 films.
Akira Onodera   +2 more
doaj   +1 more source

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