We report on the chemical, structural, and optical properties of molecular beam epitaxy (MBE) synthesized thin films of multifunctional Fe2CrO4 on (001)-oriented MgAl2O4 (MAO). Substrate temperatures near 500 °C are required to obtain smooth films with the expected out-of-plane (OOP) lattice parameter. Mg diffusion from the MAO substrate is kinetically suppressed up to 500 °C. We discuss anti-phase boundaries in symmetry matched epitaxial systems. This research provides new insight into the epitaxial growth and crystalline properties of crystal-symmetry-matched Fe2CrO4/MAO(001) heterostructures.
Revised: April 15, 2020 |
Published: May 1, 2019
Citation
Scafetta M., Z. Yang, S.R. Spurgeon, M.E. Bowden, T.C. Kaspar, S.M. Heald, and S.A. Chambers. 2019.Epitaxial growth and atomic arrangement in Fe2CrO4 on crystal symmetry matched (001) MgAl2O4.Journal of Vacuum Science & Technology A: International Journal Devoted to Vacuum, Surfaces, and Films 37, no. 3:Article number 031511.PNNL-SA-141354.doi:10.1116/1.5093537