Results 21 to 30 of about 82,143 (281)

Laser transfer of sol-gel ferroelectric thin films using an ITO release layer [PDF]

open access: yes, 2011
A new laser transfer process is reported which allows damage-free transfer of ferroelectric thin films from a growth substrate directly to a target substrate.
Bansal, A.   +15 more
core   +1 more source

Optimization of energy storage properties in (1)NaBiTiO3-SrLaTiO3-relaxed ferroelectric ceramics

open access: yesJournal of Advanced Dielectrics, 2023
Ferroelectric materials are considered to be the most competitive energy storage materials for applications in pulsed power electronics due to excellent charge–discharge properties.
Ziyue Ma   +8 more
doaj   +1 more source

Giant electrocaloric effect in the thin film relaxor ferroelectric 0.9 PbMg1/3Nb2/3O3–0.1 PbTiO3 near room temperature. [PDF]

open access: yes, 2006
We have recently observed a giant electrocaloric effect (12 K in 25 V) in 350 nm sol-gel PbZr0.95Ti0.05O3 films near the ferroelectric Curie temperature of 242oC.
Zhang, Qi   +18 more
core   +1 more source

Integration of sol-gel frequency agile materials for tunable RF devices [PDF]

open access: yes, 2012
This thesis focuses on the use of high permittivity tunable dielectrics and more specifically sol-gel ferroelectric thin films for low cost, high performance tunable devices such as varactors and filters at RF and microwave frequencies.
Fragkiadakis, Charalampos
core   +3 more sources

UV laser induced ferroelectric domain inversion in lithium niobate single crystals [PDF]

open access: yes, 2010
UV radiation in the spectral region beyond ~ 320 nm is strongly absorbed by lithium niobate single crystals. The strong absorption and the consequent localized heating of the crystal triggers physical processes which can affect the state of the material ...
Mailis, S., S Mailis
core   +1 more source

Structural geometry of the layered perovskite-type (CH3CH2CH2NH3)2CuCl4 single crystal near phase transition temperatures

open access: yesAIP Advances, 2018
Chemical shifts and spin–lattice relaxation times are measured using 1H MAS NMR, 13C CP/MAS NMR, and 14N MAS NMR techniques to understand the structural geometry and dynamics of the alkyl and ammonium groups in layered perovskite (CH3CH2CH2NH3)2CuCl4 ...
Seong Eun Jang, Mi Jung Kim, Ae Ran Lim
doaj   +1 more source

Ferroelectricity enhancement in ferroelectric nanotubes [PDF]

open access: yesPhase Transitions, 2007
In this paper we study the size effects of the ferroelectric nanotube phase diagrams and polar properties allowing for effective surface tension and depolarization field influence. The approximate analytical expression for the paraelectric-ferroelectric transition temperature dependence on the radii of nanotube, polarization gradient coefficient ...
Morozovska, A. N.   +2 more
openaire   +2 more sources

Fabrication of continuous ultrathin ferroelectric films by chemical solution deposition methods [PDF]

open access: yes, 2008
The integration of ferroelectrics in nanodevices requires firstly the preparation of high-quality ultrathin films. Chemical solution deposition is considered a rapid and cost-effective technique for preparing high-quality oxide films, but one that has
Fernandez, R.   +5 more
core   +1 more source

Deposition and characterisation of bismuth layer-structured ferroelectric films [PDF]

open access: yes, 2006
Bismuth layer-structured ferroelectrics have been recognised as promising film materials for ferroelectric random access memory application due to their excellent fatigue resistance and other electrical properties.
Hu, Xiaobing
core   +2 more sources

High energy and high intensity electron and X-ray beams by pyroelectric effect [PDF]

open access: yes, 2012
The production of x-rays has been a useful technique in many areas of science, medicine and various industries for over 100 years. Over this time various new methods of generating x-rays have been produced, allowing improved performance in existing ...
Hockley, Matthew
core   +4 more sources

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