Ferroelectric charged domain walls in an applied electric field

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389021%3A_____%2F12%3A00382300" target="_blank" >RIV/61389021:_____/12:00382300 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/46747885:24220/12:#0002164

Výsledek na webu

<a href="http://dx.doi.org/10.1103/PhysRevB.86.104104" target="_blank" >http://dx.doi.org/10.1103/PhysRevB.86.104104</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1103/PhysRevB.86.104104" target="_blank" >10.1103/PhysRevB.86.104104</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Ferroelectric charged domain walls in an applied electric field

Popis výsledku v původním jazyce

The interaction of electric fieldwith charged domainwalls in ferroelectrics is theoretically addressed.Ageneral expression for the force acting per unit area of a charged domain wall carrying free charge is derived. It is shown that, in proper ferroelectrics, the free charge carried by the wall is dependent on the size of the adjacent domains. As a result, the mobility of such domain wall (with respect to the applied field) is sensitive to the parameters of the domain pattern containing this wall. The problem of the force acting on a charged planar 180 domain wall normal to the polarization direction in a periodic domain pattern in a proper ferroelectric is analytically solved in terms of Landau theory. The poling of a crystal containing such pattern,stabilized by the pinning pressure, is also considered. Except for a special situation, the presence of charge domain walls makes poling more difficult.The results obtained are also applicable to zigzag walls under the condition that

Název v anglickém jazyce

Ferroelectric charged domain walls in an applied electric field

Popis výsledku anglicky

The interaction of electric fieldwith charged domainwalls in ferroelectrics is theoretically addressed.Ageneral expression for the force acting per unit area of a charged domain wall carrying free charge is derived. It is shown that, in proper ferroelectrics, the free charge carried by the wall is dependent on the size of the adjacent domains. As a result, the mobility of such domain wall (with respect to the applied field) is sensitive to the parameters of the domain pattern containing this wall. The problem of the force acting on a charged planar 180 domain wall normal to the polarization direction in a periodic domain pattern in a proper ferroelectric is analytically solved in terms of Landau theory. The poling of a crystal containing such pattern,stabilized by the pinning pressure, is also considered. Except for a special situation, the presence of charge domain walls makes poling more difficult.The results obtained are also applicable to zigzag walls under the condition that

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BM - Fyzika pevných látek a magnetismus

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2012

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Physical Review. B

ISSN

1098-0121

e-ISSN

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Svazek periodika

86

Číslo periodika v rámci svazku

10

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

10

Strana od-do

104104-104104

Kód UT WoS článku

000308459700002

EID výsledku v databázi Scopus

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