Size, shape, and orientation dependence of the field-induced behavior in ferroelectric nanoparticles

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F19%3A00505533" target="_blank" >RIV/68378271:_____/19:00505533 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1063/1.5088864" target="_blank" >https://doi.org/10.1063/1.5088864</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1063/1.5088864" target="_blank" >10.1063/1.5088864</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Size, shape, and orientation dependence of the field-induced behavior in ferroelectric nanoparticles

Popis výsledku v původním jazyce

Ferroelectric (FE) composite materials are attractive for a range of applications in future functional devices. Here, we utilized a free energy based computational approach to investigate the electric-field driven response of isolated FE nanoparticles embedded in a dielectric matrix and its dependence on particle size, shape, and orientation of the applied field. Particle shapes belonging to the superellipsoidal family were considered, including octahedral, spherical, and cuboidal structures, as well as a number of intermediate geometries. In perovskite nanoparticles of all shapes that are large enough to support a domain wall (DW) at zero applied field, we observed polar switching by a formation of intermediate phases, which possess an appreciable amount of vorticity stemming from the DW motion through the FE inclusion volume. The system coercive field and energy storage efficiency were found to be strongly dependent on the particle shape and the orientation, but not on its size.

Název v anglickém jazyce

Size, shape, and orientation dependence of the field-induced behavior in ferroelectric nanoparticles

Popis výsledku anglicky

Ferroelectric (FE) composite materials are attractive for a range of applications in future functional devices. Here, we utilized a free energy based computational approach to investigate the electric-field driven response of isolated FE nanoparticles embedded in a dielectric matrix and its dependence on particle size, shape, and orientation of the applied field. Particle shapes belonging to the superellipsoidal family were considered, including octahedral, spherical, and cuboidal structures, as well as a number of intermediate geometries. In perovskite nanoparticles of all shapes that are large enough to support a domain wall (DW) at zero applied field, we observed polar switching by a formation of intermediate phases, which possess an appreciable amount of vorticity stemming from the DW motion through the FE inclusion volume. The system coercive field and energy storage efficiency were found to be strongly dependent on the particle shape and the orientation, but not on its size.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10301 - Atomic, molecular and chemical physics (physics of atoms and molecules including collision, interaction with radiation, magnetic resonances, Mössbauer effect)

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2019

Kód důvěrnosti údajů

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

Název periodika

Journal of Applied Physics

ISSN

0021-8979

e-ISSN

—

Svazek periodika

125

Číslo periodika v rámci svazku

13

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

11

Strana od-do

1-11

Kód UT WoS článku

000463657500008

EID výsledku v databázi Scopus

2-s2.0-85063972165