Oxide Epitaxy with Large Symmetry Mismatch: Bronze-phase VO2 on SrTiO3

• Published in: Microscopy and microanalysis 2017-08, Vol.23 (S1), p.1580-1581
• Main Authors: Sims, Hunter, Gao, Xiang, Lee, Shinbuhm, Nichols, John A., Meyer, Tricia L., Ward, T. Zac, Pantelides, Sokrates T., Chisholm, Matthew F., Lee, Ho Nyung
• Format: Article
• Language: English
• Subjects: Advanced Microscopy and Microanalysis of Complex Oxides; INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; Physical Science Symposia
• ISSN: 1431-9276; 1435-8115
• DOI: 10.1017/S143192761700856X

Epitaxial synthesis of complex oxides has stimulated considerable interest in creating novel functionalities and physical properties by controlling the interplay among the order parameters, i.e. lattice, spin, charge, and orbital order. Furthermore, heterostructures of oxide materials allow for well defined interfaces at which electronic and/or magnetic order can be coupled or tuned, as well as giving rise to emergent behavior distinct from the bulk properties of either material. Most studies on the epitaxial growth of complex oxides have focused on isostructural materials, e.g. perovskites on perovskites. While many binary oxides, such as TiO2 and VO2, also offer intriguing physical properties, there are no substrates available with similar structures (lattice parameters and crystal symmetry). Thus, the ability to grow epitaxial thin films of binary oxides on lattice- and symmetry-mismatched substrates is of vital importance for exploring their unprecedented potential.