Assessing the ubiquity of Bloch domain walls in ferroelectric lead titanate superlattices

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F24%3A00601874" target="_blank" >RIV/68378271:_____/24:00601874 - isvavai.cz</a>

Výsledek na webu

<a href="https://hdl.handle.net/11104/0359136" target="_blank" >https://hdl.handle.net/11104/0359136</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1103/PhysRevX.14.041052" target="_blank" >10.1103/PhysRevX.14.041052</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Assessing the ubiquity of Bloch domain walls in ferroelectric lead titanate superlattices

Popis výsledku v původním jazyce

Bloch components in the 180° domain walls of PbTiO3 have recently been reported in PbTiO3/SrTiO3 superlattices and linked to domain wall chirality. In this work, we present a comprehensive investigation of domain walls in PbTiO3/SrTiO3 superlattices, involving a combination of first- and second-principles calculations, phase-field simulations, diffuse scattering calculations, and synchrotron-based diffuse x-ray scattering. Our theoretical calculations highlight that the previously predicted Bloch polarization in the 180° domain walls in PbTiO3/SrTiO3 superlattices might be more sensitive to the boundary conditions than initially thought. Employing diffuse scattering calculations for larger systems, we develop a method to probe the complex structure of domain walls in these superlattices via diffuse x-ray scattering measurements. Our experimental findings do not reveal any signatures of a Bloch component in the centers of the 180° domain walls of PbTiO3/SrTiO3 superlattices.

Název v anglickém jazyce

Assessing the ubiquity of Bloch domain walls in ferroelectric lead titanate superlattices

Popis výsledku anglicky

Bloch components in the 180° domain walls of PbTiO3 have recently been reported in PbTiO3/SrTiO3 superlattices and linked to domain wall chirality. In this work, we present a comprehensive investigation of domain walls in PbTiO3/SrTiO3 superlattices, involving a combination of first- and second-principles calculations, phase-field simulations, diffuse scattering calculations, and synchrotron-based diffuse x-ray scattering. Our theoretical calculations highlight that the previously predicted Bloch polarization in the 180° domain walls in PbTiO3/SrTiO3 superlattices might be more sensitive to the boundary conditions than initially thought. Employing diffuse scattering calculations for larger systems, we develop a method to probe the complex structure of domain walls in these superlattices via diffuse x-ray scattering measurements. Our experimental findings do not reveal any signatures of a Bloch component in the centers of the 180° domain walls of PbTiO3/SrTiO3 superlattices.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Projekt

<a href="/cs/project/EH22_008%2F0004591" target="_blank" >EH22_008/0004591: Feroické multifunkcionality</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2024

Kód důvěrnosti údajů

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

Název periodika

Physical Review X

ISSN

2160-3308

e-ISSN

2160-3308

Svazek periodika

14

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

18

Strana od-do

041052

Kód UT WoS článku

001377305600001

EID výsledku v databázi Scopus

2-s2.0-85210947823