|
KMID : 1102020180480010027
|
|
Applied Microscopy
2018 Volume.48 No. 1 p.27 ~ p.32
|
|
|
Measurement of Barium Ion Displacement Near Surface in a Barium Titanate Nanoparticle by Scanning Transmission Electron Microscopy
|
|
Aoki Mai
Sato Yukio
Teranishi Ryo
Kaneko Kenji
|
|
|
Abstract
|
|
|
|
Barium titanate (BaTiO3) nanoparticle is one of the most promising materials for future multi-layer ceramic capacitor and ferroelectric random access memory. It is well known that electrical property of nanoparticles depends on the atomistic structure. Although surface may possibly have an impact on the atomistic structure, reconstructed structure at the surface has not been widely investigated. In the present study, Baion position near surface in a BaTiO3 nanoparticle has been quantitatively characterized by scanning transmission electron microscopy. It was found that some Ba ions at the surface were greatly displaced in non-uniform directions.
|
|
|
KEYWORD
|
|
|
Nanoparticle, BaTiO3, Scanning transmission electron microscopy, Surface, Ferroelectrics
|
|
|
FullTexts / Linksout information
|
|
|
|
|
|
Listed journal information
|
|
|