Nonlinear extrinsic piezoelectricity in lead titanate due to 90° domain wall pinning
The result's identifiers
Result code in IS VaVaI
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Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Nonlinear extrinsic piezoelectricity in lead titanate due to 90° domain wall pinning
Original language description
Group of perovskite materials is still playing the essential role in a construction of contemporary electromechanical transducers. An increased number of regulations concerning the use of hazardous substances has triggered a vivid search for equally wellperforming piezoelectric materials but without the toxic lead. One of the possibilities to increase the piezoelectric response of lead-free piezoelectric perovskites is to employ so called extrinsic contributions (i.e. motion of ferroelastic domain walls) to piezoelectricity in some controlled manner. The key factor which controls the macroscopic value of the extrinsic contributions to piezoelectricity is the restoring force acting on a domain wall, when it is shifted from its equilibrium position. Considering the bulk properties of perovskites, the main contribution to the restoring force comes from the interaction of domain walls with so called pinning centers such as crystal lattice point defects or dislocations. We have developed a
Czech name
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Czech description
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Classification
Type
A - Audiovisual production
CEP classification
BM - Solid-state physics and magnetism
OECD FORD branch
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Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2013
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
ISBN
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Place of publication
State College, PA, USA
Publisher/client name
The Pennsylvania State University Materials Research Institute N228 Millennium Science Complex University Park, PA 16802 USA
Version
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Carrier ID
CD-IWATMD-2013