TY  - JOUR
AU  - Lu, Jiangbo
AU  - Lu, Lu
AU  - Cheng, Sheng
AU  - Liu, Ming
AU  - Jia, Chunlin@fz-juelich. de
TI  - Microstructure and secondary phases in epitaxial LaBaCo 2 O 5.5+δ thin films
JO  - Journal of materials science & technology
VL  - 34
IS  - 2
SN  - 1005-0302
CY  - Shenyang
PB  - Ed. Board, Journal of Materials Science & Technology
M1  - FZJ-2019-01058
SP  - 398 - 402
PY  - 2018
AB  - Aberration-corrected scanning transmission electron microscopy was employed to investigate the microstructures and secondary phases in LaBaCo2O5.5 + δ (LBCO) thin films grown on SrTiO3 (STO) substrates. The as-grown films showed an epitaxial growth on the substrates with atomically sharp interfaces and orientation relationships of [100]LBCO//[100]STO and (001)LBCO//(001)STO. Secondary phases were observed in the films, which strongly depended on the sample fabrication conditions. In the film prepared at a temperature of 900 °C, nano-scale CoO pillars nucleated on the substrate, and grew along the [001] direction of the film. In the film grown at a temperature of 1000 °C, isolated nano-scale Co3O4 particles appeared, which promoted the growth of {111} twinning structures in the film. The orientation relationships and the interfaces between the secondary phases and the films were illustrated, and the growth mechanism of the film was discussed.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000426447800020
DO  - DOI:10.1016/j.jmst.2016.09.027
UR  - https://juser.fz-juelich.de/record/860283
ER  -