Charge ordering modulations in a Bi0.4Ca0.6MnO3 film with a thickness of 110 nm

The low temperature sample stage in a transmission electron microscope is used to investigate the charge ordering behaviours in a Bi0.4Ca0.6MnO3 film with a thickness of 110 nm at 103 K. Six different types of superlattice structures are observed using the selected-area electron diffraction （SAED） t...

Full description

Saved in:
Bibliographic Details
Published in:中国物理B：英文版 2012-08, Vol.21 (8), p.482-486
Main Author: 丁艳华 王乙潜 蔡镕声 陈允忠 孙继荣
Format: Article
Language:English
Subjects:
厚度
结构模型试验
膜
订购
调制周期
超晶格结构
选区电子衍射
高分辨透射电子显微镜
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The low temperature sample stage in a transmission electron microscope is used to investigate the charge ordering behaviours in a Bi0.4Ca0.6MnO3 film with a thickness of 110 nm at 103 K. Six different types of superlattice structures are observed using the selected-area electron diffraction （SAED） technique, while three of them match well with the modulation stripes in high-resolution transmission electron microscopy （HRTEM） images. It is found that the modulation periodicity and direction are completely different in the region close to the Bi0.4Ca0.6MnO3/SrTiO3 interface from those in the region a little further from the Bi0.4Ca0.6MnO3/SrTiO3 interface, and the possible reasons for this are discussed. Based on the experimental results, structural models are proposed for these localized modulated structures.
ISSN:1674-1056
2058-3834
DOI:10.1088/1674-1056/21/8/087502