Electrostatically driven polarization flop and strain-induced curvature in free-standing ferroelectric superlattices

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F22%3A00556818" target="_blank" >RIV/68378271:_____/22:00556818 - isvavai.cz</a>

Výsledek na webu

<a href="https://hdl.handle.net/11104/0336320" target="_blank" >https://hdl.handle.net/11104/0336320</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/adma.202106826" target="_blank" >10.1002/adma.202106826</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Electrostatically driven polarization flop and strain-induced curvature in free-standing ferroelectric superlattices

Popis výsledku v původním jazyce

In this work, an electrostatically driven transition from a predominantly out-of-plane polarized to an in-plane polarized state is observed when a PbTiO3/SrTiO3 superlattice with a SrRuO3 bottom electrode is released from its substrate. In turn, this polarization rotation modifies the lattice parameter mismatch between the superlattice and the thin SrRuO3 layer, causing the heterostructure to curl up into microtubes. Through a combination of synchrotron-based scanning X-ray diffraction imaging, Raman scattering, piezoresponse force microscopy, and scanning transmission electron microscopy, the crystalline structure and domain patterns of the curved superlattices are investigated, revealing a strong anisotropy in the domain structure and a complex mechanism for strain accommodation.

Název v anglickém jazyce

Electrostatically driven polarization flop and strain-induced curvature in free-standing ferroelectric superlattices

Popis výsledku anglicky

In this work, an electrostatically driven transition from a predominantly out-of-plane polarized to an in-plane polarized state is observed when a PbTiO3/SrTiO3 superlattice with a SrRuO3 bottom electrode is released from its substrate. In turn, this polarization rotation modifies the lattice parameter mismatch between the superlattice and the thin SrRuO3 layer, causing the heterostructure to curl up into microtubes. Through a combination of synchrotron-based scanning X-ray diffraction imaging, Raman scattering, piezoresponse force microscopy, and scanning transmission electron microscopy, the crystalline structure and domain patterns of the curved superlattices are investigated, revealing a strong anisotropy in the domain structure and a complex mechanism for strain accommodation.

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/GX19-28594X" target="_blank" >GX19-28594X: Feroelektrické skyrmiony</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2022

Kód důvěrnosti údajů

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

Název periodika

Advanced Materials

ISSN

0935-9648

e-ISSN

1521-4095

Svazek periodika

34

Číslo periodika v rámci svazku

15

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

12

Strana od-do

2106826

Kód UT WoS článku

000762567000001

EID výsledku v databázi Scopus

2-s2.0-85125487295