Propensity for spontaneous relaxor-ferroelectric transition in quenched (Na1/2Bi1/2)TiO3-BaTiO3 compositions

Relaxor ferroelectrics, such as Pb(Mg1/3Nb2/3)O3 (PMN) or (Pb·88La ·12)(Zr·65Ti·35)O3 (PLZT), show diffuse ferroelectric transition which depends upon frequency of the a.c. field. In spite of their wide use in various applications details of their atomic structure and the mechanism of relaxor ferroelectric transition are not sufficiently understood. While their crystallographic structure is cubic perovskite, ABO3, their thermal factors (apparent amplitude of thermal vibration) is quite large, suggesting local displacive disorder due to heterovalent ion mixing. Electron microscopy suggests nano-scale structural as well as chemical inhomogeneity.We have studied the atomic structure of these solids by pulsed neutron scattering using the atomic pair-distribution analysis. The measurements were made at the Intense Pulsed Neutron Source (IPNS) of Argonne National Laboratory. Pulsed neutrons are produced by a pulsed proton beam accelerated to 750 MeV hitting a uranium target at a rate of 30 Hz. Even after moderation by a liquid methane moderator high flux of epithermal neutrons with energies ranging up to few eV’s remain.

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Normal to Relaxor Ferroelectric Transition and Domain Morphology Evolution in (K,Na)(Nb,Sb)O3-LiTaO3-BaZrO3 Lead-Free Ceramics

Journal of the American Ceramic Society ◽

10.1111/j.1551-2916.2011.04712.x ◽

2011 ◽

Vol 94 (12) ◽

pp. 4352-4357 ◽

Cited By ~ 24

Author(s):

Ruzhong Zuo ◽

Jian Fu ◽

Shengbo Lu ◽

Zhengkui Xu

Keyword(s):

Relaxor Ferroelectric ◽

Lead Free ◽

Morphology Evolution ◽

Ferroelectric Transition ◽

Lead Free Ceramics

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Smearing of induced ferroelectric transition and easy imprinting of different polarization configurations in relaxor ferroelectric (Na1/2Bi1/2)1−xBaxTiO3

Applied Physics Letters ◽

10.1063/1.4802951 ◽

2013 ◽

Vol 102 (16) ◽

pp. 162902 ◽

Cited By ~ 6

Author(s):

F. Craciun ◽

C. Galassi

Keyword(s):

Relaxor Ferroelectric ◽

Ferroelectric Transition

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The spontaneous relaxor‐ferroelectric transition of Pb(Sc0.5Ta0.5)O3

Journal of Applied Physics ◽

10.1063/1.354300 ◽

1993 ◽

Vol 74 (8) ◽

pp. 5129-5134 ◽

Cited By ~ 268

Author(s):

F. Chu ◽

N. Setter ◽

A. K. Tagantsev

Keyword(s):

Relaxor Ferroelectric ◽

Ferroelectric Transition

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Bandgap behavior and singularity of the domain-induced light scattering through the pressure-induced ferroelectric transition in relaxor ferroelectric AxBa1–xNb2O6 (A: Sr,Ca)

Applied Physics Letters ◽

10.1063/1.5012111 ◽

2018 ◽

Vol 112 (4) ◽

pp. 042901 ◽

Cited By ~ 2

Author(s):

J. Ruiz-Fuertes ◽

O. Gomis ◽

A. Segura ◽

M. Bettinelli ◽

M. Burianek ◽

...

Keyword(s):

Light Scattering ◽

Relaxor Ferroelectric ◽

Ferroelectric Transition

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High-throughput synthesis and electrical properties of BNT–BT–KNN lead-free piezoelectric ceramics

Journal of Materials Chemistry C ◽

10.1039/c9tc06745k ◽

2020 ◽

Vol 8 (11) ◽

pp. 3655-3662 ◽

Cited By ~ 2

Author(s):

Guanhua Song ◽

Zhibin Liu ◽

Faqiang Zhang ◽

Feng Liu ◽

Yan Gu ◽

...

Keyword(s):

Electrical Properties ◽

High Throughput ◽

High Strain ◽

Piezoelectric Ceramics ◽

Relaxor Ferroelectric ◽

Lead Free ◽

Ferroelectric Transition ◽

High Throughput Method

Property diagrams of BNT–BT–KNN ceramics were obtained through a high-throughput method and the rhombohedral–relaxor ferroelectric transition led to high strain.

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