Two-phase dielectric polar structures in 0.1NBT-0.6ST-0.3PT solid solutions

Kód výsledku v IS VaVaI

RIV/68378271:_____/18:00492458 - isvavai.cz

Výsledek na webu

http://dx.doi.org/10.1016/j.actamat.2018.04.052

DOI - Digital Object Identifier

10.1016/j.actamat.2018.04.052

Jazyk výsledku

angličtina

Název v původním jazyce

Two-phase dielectric polar structures in 0.1NBT-0.6ST-0.3PT solid solutions

Popis výsledku v původním jazyce

In this work we address the peculiarities of the macroscopic responses in ternary 0.1Na0.5Bi0.5TiO(3)0.6SrTiO(3)-0.3PbTiO(3) (0.1NBT-0.6ST-0.3PT) solid solutions. These solid solutions exhibit a spontaneous first order relaxor to normal ferroelectric phase transition. The phase transition is accompanied by a broad dielectric relaxation which expands over 10 orders of magnitude in frequency just above the phase transition temperature. The temperature dependence of polarization shows that non-zero net polarization persists above the phase transition temperature. Below the phase transition temperature, it is not possible to describe the temperature dependence of polarization with a power law function which is valid in normal ferroelectrics. The piezoresponse force microscopy studies reveal that 0.1NBT-0.6ST-0.3PT solids solutions display several local polarization patterns which arise due to the bimodal distribution of grains in the ceramics.

Název v anglickém jazyce

Two-phase dielectric polar structures in 0.1NBT-0.6ST-0.3PT solid solutions

Popis výsledku anglicky

In this work we address the peculiarities of the macroscopic responses in ternary 0.1Na0.5Bi0.5TiO(3)0.6SrTiO(3)-0.3PbTiO(3) (0.1NBT-0.6ST-0.3PT) solid solutions. These solid solutions exhibit a spontaneous first order relaxor to normal ferroelectric phase transition. The phase transition is accompanied by a broad dielectric relaxation which expands over 10 orders of magnitude in frequency just above the phase transition temperature. The temperature dependence of polarization shows that non-zero net polarization persists above the phase transition temperature. Below the phase transition temperature, it is not possible to describe the temperature dependence of polarization with a power law function which is valid in normal ferroelectrics. The piezoresponse force microscopy studies reveal that 0.1NBT-0.6ST-0.3PT solids solutions display several local polarization patterns which arise due to the bimodal distribution of grains in the ceramics.

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

LD15014: Piezoelektrika a multiferoika pro budoucí elektroniku

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2018

Kód důvěrnosti údajů

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

Název periodika

Acta Materialia

ISSN

1359-6454

e-ISSN

—

Svazek periodika

153

Číslo periodika v rámci svazku

Jul

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

9

Strana od-do

117-125

Kód UT WoS článku

000437391500012

EID výsledku v databázi Scopus

2-s2.0-85046513950