This title appears in the Scientific Report :
2018
Please use the identifier:
http://dx.doi.org/10.1016/j.jmst.2016.09.027 in citations.
Microstructure and secondary phases in epitaxial LaBaCo 2 O 5.5+δ thin films
Microstructure and secondary phases in epitaxial LaBaCo 2 O 5.5+δ thin films
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...
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Personal Name(s): | Lu, Jiangbo (Corresponding author) |
---|---|
Lu, Lu / Cheng, Sheng / Liu, Ming / Jia, Chunlin@fz-juelich. de | |
Contributing Institute: |
Physik Nanoskaliger Systeme; ER-C-1 |
Published in: | Journal of materials science & technology, 34 (2018) 2, S. 398 - 402 |
Imprint: |
Shenyang
Ed. Board, Journal of Materials Science & Technology
2018
|
DOI: |
10.1016/j.jmst.2016.09.027 |
Document Type: |
Journal Article |
Research Program: |
Controlling Configuration-Based Phenomena |
Publikationsportal JuSER |
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. |