Electron Microscopy and Analysis Group Conference 2015 | |
Analysis of interfacial structure and chemistry in FeV2O4-based heterostructures on (001)-oriented SrTiO3 | |
Zhou, Y.^1 ; Zhou, D.^1 ; Mitchell, D.R.G.^2 ; Valanoor, N.^1 ; Munroe, P.^1 | |
School of Materials Science and Engineering, University of New South Wales, Sydney | |
NSW | |
2052, Australia^1 | |
Electron Microscopy Centre, Australian Institute for Innovative Materials, University of Wollongong, North-Wollongong | |
NSW | |
2522, Australia^2 | |
关键词: Buffered substrates; Energy dispersive X ray spectroscopy; Epitaxially grown; High resolution scanning transmission electron microscopies; Interfacial structures; Localised; SrTiO3 substrates; | |
Others : https://iopscience.iop.org/article/10.1088/1742-6596/644/1/012003/pdf DOI : 10.1088/1742-6596/644/1/012003 |
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来源: IOP | |
【 摘 要 】
In this study, we investigate the interfacial structures and chemistry of FeV2O4(FVO)/ SrTiO3(STO) and FeV2O4/La0.33Sr0.67MnO3/SrTiO3(FVO/LSMO/STO) heterostructures, in which FVO is epitaxially grown on both a (001)-oriented SrTiO3substrate and a LSMO-buffered substrate by pulsed laser deposition (PLD). By combining data from transmission electron microscopy (TEM) imaging together with high-resolution scanning transmission electron microscopy (STEM) imaging, the interfaces between FVO and STO, and FVO and LSMO are found to be coherent and semicoherent, respectively, in spite of more than 8% of strain at the interface. Energy-dispersive X-ray spectroscopy (EDS) analysis suggests that localised diffusion occurs at both the FVO/STO and the FVO/LSMO interfaces.
【 预 览 】
Files | Size | Format | View |
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Analysis of interfacial structure and chemistry in FeV2O4-based heterostructures on (001)-oriented SrTiO3 | 819KB | download |