Pinning and bending of domain walls in lead titanate

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24220%2F13%3A%230002433" target="_blank" >RIV/46747885:24220/13:#0002433 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Pinning and bending of domain walls in lead titanate
Original language description
It is known that domain wall motion greatly contributes to macroscopic permittivity and piezoelectric coefficients of polydomain ferroelectric samples. In the bulk of a ferroelectric material, the domain wall mobility is restricted by interactions of domain walls with crystal lattice defects. It is believed that crystal lattice defects cause pinning and bending of domain walls. Since understanding the two aforementioned phenomena is still rather limited, we theoretically analyze the system, where a segment of a domain wall interacts with a crystal lattice defect. The analysis has been performed using a general thermodynamic model based on the Landau-Ginzburg-Devonshire theory. The interaction of domain walls with crystal lattice defects has been introduced using an additional term in the free energy of the system. The model has been solved using numerical phase-field simulations and the results were compared with analytical solution of simplified domain-wall-bending model presented ear
Czech name
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Czech description
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Project
<a href="/en/project/GAP204%2F10%2F0616" target="_blank" >GAP204/10/0616: Modern piezoelectric perovskites: lattice vibrations and domain walls</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2013
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

ISBN
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Place of publication
Krakow, Poland
Publisher/client name
The Institute of Physics Jagiellonian University, Kraków, Poland
Version
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Carrier ID
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