Investigation on switching kinetics in epitaxial Pb(Zr0.2Ti0.8)O3 ferroelectric thin films: Role of the 90° domain walls

2007 ◽  
Vol 91 (26) ◽  
pp. 262903 ◽  
Author(s):  
Wei Li ◽  
Marin Alexe
Keyword(s):  
Thin Films ◽  
Domain Walls ◽  
Ferroelectric Thin Films

THE ROLE OF OPTIMIZATION IN THE LANDAU THEORY OF FERROELECTRIC THIN FILMS

2009 ◽  
Author(s):  
J. F. Webb ◽  
Abdul Halim Hakim ◽  
Pandian Vasant ◽  
Nader Barsoum
Keyword(s):  
Thin Films ◽  
Landau Theory ◽  
Ferroelectric Thin Films

The enhanced piezoelectricity in compositionally graded ferroelectric thin films under electric field: A role of flexoelectric effect

2018 ◽  
Vol 123 (8) ◽  
pp. 084103 ◽  
Author(s):  
Ye Qiu ◽  
Huaping Wu ◽  
Jie Wang ◽  
Jia Lou ◽  
Zheng Zhang ◽  
...  
Keyword(s):  
Thin Films ◽  
Electric Field ◽  
Ferroelectric Thin Films ◽  
Flexoelectric Effect

The role of nanoporosity on the local piezo and ferroelectric properties of lead titanate thin films

2015 ◽  
Vol 3 (5) ◽  
pp. 1035-1043 ◽  
Author(s):  
Alichandra Castro ◽  
Paula Ferreira ◽  
Brian J. Rodriguez ◽  
Paula M. Vilarinho
Keyword(s):  
Thin Films ◽  
Coercive Field ◽  
Lead Titanate ◽  
Ferroelectric Properties ◽  
Ferroelectric Thin Films ◽  
Piezoelectric Response ◽  
Nanoporous Films ◽  
Switching Behaviour ◽  
Dense Films

Nanoporous PbTiO3 films present enhanced tetragonality at lower temperatures than respective dense films. Moreover, the porosity present in the nanoporous films allows an increase of the local piezoelectric response and a decrease of the local coercive field. As a result, these nanoporous films might be used to improve the switching behaviour of ferroelectric thin films.

Velocity Control of 180° Domain Walls in Ferroelectric Thin Films by Electrode Modification

Nano Letters ◽  
2015 ◽  
Vol 16 (1) ◽  
pp. 68-73 ◽  
Author(s):  
L. J. McGilly ◽  
L. Feigl ◽  
T. Sluka ◽  
P. Yudin ◽  
A. K. Tagantsev ◽  
...  
Keyword(s):  
Thin Films ◽  
Domain Walls ◽  
Ferroelectric Thin Films ◽  
Velocity Control ◽  
Electrode Modification

Size Effects and Domains in Ferroelectric Thin Film Actuators

1996 ◽  
Vol 433 ◽  
Author(s):  
S. Trolier-Mckinstry ◽  
C. A. Randall ◽  
J. P. Maria ◽  
C. Theis ◽  
D. G. Schlom ◽  
...  
Keyword(s):  
Thin Films ◽  
Grain Size ◽  
Domain Walls ◽  
Sol Gel ◽  
Ferroelectric Thin Film ◽  
Ferroelectric Thin Films ◽  
Grain Sizes ◽  
Average Grain Size ◽  
Ferroelectric Domains ◽  
Gel Processing

AbstractFerroelectric thin films typically differ from bulk ceramics in terms of both the average grain size and the degree of stress imposed on the film by the substrate. Studies on bulk ceramics have demonstrated that the number of domain variants within grains depends on the grain size for sizes <˜lμm. This can diminish the poling efficiency of the material. Since most thin films show primary grain sizes well below a micron, similar effects should be observed in films. In addition, since the perovskite ferroelectrics contain ferroelastic as well as ferroelectric domains, it seems clear that stress in thin films may markedly alter the degree to which domain walls contribute to the observed properties. In this paper, the relative importance of these factors are discussed for several types of ferroelectric thin films. Films have been prepared by pulsed laser deposition, magnetron sputtering, and by sol-gel processing. It has been found that epitaxial BaTiO3 films are ferroelectric at 77K down to thicknesses as low as ˜ 60nm. Data on the low and high field electrical properties are reported as a function of temperature, the film crystallinity, and film thickness for representative perovskite films.

scholarly journals Understanding the Role of Ferroelastic Domains on the Pyroelectric and Electrocaloric Effects in Ferroelectric Thin Films

2018 ◽  
Vol 31 (5) ◽  
pp. 1803312 ◽  
Author(s):  
Shishir Pandya ◽  
Gabriel A. Velarde ◽  
Ran Gao ◽  
Arnoud S. Everhardt ◽  
Joshua D. Wilbur ◽  
...  
Keyword(s):  
Thin Films ◽  
Ferroelectric Thin Films ◽  
Ferroelastic Domains

Bulk-Controlled Photovoltaic Effect in Nanometer-Thick Ferroelectric Pb(Zr0.2Ti0.8)O3 Thin Films and the Role of Domain Walls

2020 ◽  
Vol 3 (12) ◽  
pp. 11881-11888
Author(s):  
Niranjan Ramakrishnegowda ◽  
David S. Knoche ◽  
Lutz Mühlenbein ◽  
Andriy Lotnyk ◽  
Akash Bhatnagar
Keyword(s):  
Thin Films ◽  
Domain Walls ◽  
Photovoltaic Effect
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