Pinning of domain walls by strontium layer ...
Type de document :
Article dans une revue scientifique: Article original
URL permanente :
Titre :
Pinning of domain walls by strontium layer in the BaTiO3 perovskite: An atomic-scale study
Auteur(s) :
Dimou, Aris [Auteur]
Interdisciplinary Centre for Advanced Materials Simulation [ICAMS]
Hirel, Pierre [Auteur]
Unité Matériaux et Transformations (UMET) - UMR 8207
Grünebohm, Anna [Auteur]
Interdisciplinary Centre for Advanced Materials Simulation [ICAMS]
Interdisciplinary Centre for Advanced Materials Simulation [ICAMS]
Hirel, Pierre [Auteur]
Unité Matériaux et Transformations (UMET) - UMR 8207
Grünebohm, Anna [Auteur]
Interdisciplinary Centre for Advanced Materials Simulation [ICAMS]
Titre de la revue :
Physical Review B
Nom court de la revue :
Phys. Rev. B
Numéro :
106
Pagination :
094104
Éditeur :
American Physical Society (APS)
Date de publication :
2022-09-21
ISSN :
2469-9950
Discipline(s) HAL :
Physique [physics]/Matière Condensée [cond-mat]/Science des matériaux [cond-mat.mtrl-sci]
Planète et Univers [physics]/Sciences de la Terre
Planète et Univers [physics]/Sciences de la Terre
Résumé en anglais : [en]
We use atomistic simulations to study the interactions between two-dimensional domain walls and Sr inclusions in the prototypical ferroelectric BaTiO3. Based on nudged elastic band calculations we predict that the energy ...
Lire la suite >We use atomistic simulations to study the interactions between two-dimensional domain walls and Sr inclusions in the prototypical ferroelectric BaTiO3. Based on nudged elastic band calculations we predict that the energy barrier for domain-wall movement increases in the vicinity of small planar Sr inclusions which may act as pinning centers. We link this observation to the local increase in polarization by larger oxygen off-centering and validate our predictions by molecular dynamics simulations of field-driven domain walls at finite temperatures.Lire moins >
Lire la suite >We use atomistic simulations to study the interactions between two-dimensional domain walls and Sr inclusions in the prototypical ferroelectric BaTiO3. Based on nudged elastic band calculations we predict that the energy barrier for domain-wall movement increases in the vicinity of small planar Sr inclusions which may act as pinning centers. We link this observation to the local increase in polarization by larger oxygen off-centering and validate our predictions by molecular dynamics simulations of field-driven domain walls at finite temperatures.Lire moins >
Langue :
Anglais
Comité de lecture :
Oui
Audience :
Internationale
Vulgarisation :
Non
Établissement(s) :
Université de Lille
CNRS
INRAE
ENSCL
CNRS
INRAE
ENSCL
Collections :
Équipe(s) de recherche :
Plasticité
Date de dépôt :
2022-09-22T09:39:59Z
2022-09-23T07:50:37Z
2022-09-23T07:50:37Z
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- 2022_Dimou_Pinning-DW-Sr-Layer-BaTiO3-Perovskite.pdf
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