Doping influence on structural ferroelectric phase transitions and electrical features of barium calcium titanate

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62690094%3A18470%2F23%3A50020800" target="_blank" >RIV/62690094:18470/23:50020800 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S0955221923001991?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0955221923001991?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jeurceramsoc.2023.03.018" target="_blank" >10.1016/j.jeurceramsoc.2023.03.018</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Doping influence on structural ferroelectric phase transitions and electrical features of barium calcium titanate

Popis výsledku v původním jazyce

We comprehensively report Sr, Cr, Mn, and Mg doping ions&apos; influence on structural and dielectric properties of barium calcium titanate (BCT) ceramics over a wide temperature and frequency range. X-ray diffraction and electrical studies showed the phase transition (PT) from paraelectric (PE) to ferroelectric (FE) phase. The linear and nonlinear susceptibility measurement identified the discontinuous PT of BCT and Sr-doped BCT. Moreover, this measurement also distinguished diffused PE-FE PT features induced in BCT by the Cr and Mn ions. Excep-tionally, the Mg ion doping caused the relaxor-like features in BCT. Distribution of relaxation times indicated a mixed order-disorder and displacive character of PT. The doping of Cr, Mn, and Mg ions shortened the relaxation times related to the B-sublattice ions jumping. We also confirmed low-temperature FE-FE PT via linear and nonlinear dielectric susceptibility and pyroelectric measurements. We showed that non-zero net polarization could be induced by an applied electric field.

Název v anglickém jazyce

Doping influence on structural ferroelectric phase transitions and electrical features of barium calcium titanate

Popis výsledku anglicky

We comprehensively report Sr, Cr, Mn, and Mg doping ions&apos; influence on structural and dielectric properties of barium calcium titanate (BCT) ceramics over a wide temperature and frequency range. X-ray diffraction and electrical studies showed the phase transition (PT) from paraelectric (PE) to ferroelectric (FE) phase. The linear and nonlinear susceptibility measurement identified the discontinuous PT of BCT and Sr-doped BCT. Moreover, this measurement also distinguished diffused PE-FE PT features induced in BCT by the Cr and Mn ions. Excep-tionally, the Mg ion doping caused the relaxor-like features in BCT. Distribution of relaxation times indicated a mixed order-disorder and displacive character of PT. The doping of Cr, Mn, and Mg ions shortened the relaxation times related to the B-sublattice ions jumping. We also confirmed low-temperature FE-FE PT via linear and nonlinear dielectric susceptibility and pyroelectric measurements. We showed that non-zero net polarization could be induced by an applied electric field.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20504 - Ceramics

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2023

Kód důvěrnosti údajů

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

Název periodika

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY

ISSN

0955-2219

e-ISSN

1873-619X

Svazek periodika

43

Číslo periodika v rámci svazku

9

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

15

Strana od-do

4029-4043

Kód UT WoS článku

001054134800001

EID výsledku v databázi Scopus

2-s2.0-85151268713