Analysis of interfacial structure and chemistry in FeV2O4-based heterostructures on (001)-oriented SrTiO3. (September 2015)

• Record Type: Journal Article
• Authors: Zhou, Y; Zhou, D; Mitchell, D R G; Valanoor, N; Munroe, P
• Is Part Of: Journal of physics. Number 644(2015)
• Publication Date: 2015-09
• Subjects: Physics -- Congresses; 530.5
• DOI: 10.1088/1742-6596/644/1/012003
• Languages: English
• ISSNs: 1742-6588

Abstract

Abstract: In this study, we investigate the interfacial structures and chemistry of FeV2 O4 (FVO)/ SrTiO3 (STO) and FeV2 O4 /La0.33 Sr0.67 MnO3 /SrTiO3 (FVO/LSMO/STO) heterostructures, in which FVO is epitaxially grown on both a (001)-oriented SrTiO3 substrate 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.