Why lanthanum-substituted bismuth titanate becomes fatigue free in a ferroelectric capacitor with platinum electrodes

Journal Article · Mon Jun 25 00:00:00 EDT 2001 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.1381038· OSTI ID:40204591

Ding, Y; Liu, J S; Qin, H X; Zhu, J S; Wang, Y N

Bi{sub 4}Ti{sub 3}O{sub 12}, (BTO) a Bi-layered perovskite oxide, shows fatigue after repeated ferroelectric polarization reversals. On the other hand, Bi{sub 3.25}La{sub 0.75}Ti{sub 3}O{sub 12} (BLT) is fatigue free. From an extensive transmission electron microscopy study, it was found that there is a high density of antiphase boundaries (APBs) in BLT like in the fatigue-free SrBi{sub 2}Ta{sub 2}O{sub 9} but not in BTO. It is proposed that the existence of APBs possibly plays a key role in the fatigue-free behavior of Bi-layered perovskite oxides. {copyright} 2001 American Institute of Physics.

• Sponsoring Organization: (US)
• OSTI ID: 40204591
• Journal Information: Applied Physics Letters, Journal Name: Applied Physics Letters Journal Issue: 26 Vol. 78; ISSN 0003-6951
• Publisher: The American Physical Society
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BISMUTH
CAPACITORS
ELECTRODES
OXIDES
PEROVSKITE
PHYSICS
PLATINUM
POLARIZATION
TITANATES
TRANSMISSION ELECTRON MICROSCOPY