Abstract
We report on the epitaxial growth of and by molecular beam epitaxy on (001)-oriented substrates. We show that a high control of the deposition is achieved and leads to a highly reproducible layer-by-layer growth mode. We evidence also the effect of epitaxial strain on the magnetic properties of the epitaxial films. High-resolution transmission electron microscopy and scanning transmission electron microscopy observations reveal that an antipolar motion of the rare-earth atoms exists in both and thin films. The investigation of the structural distortions and atomic displacements in the vanadate thin films may be generalized to other orthorhombic perovskite oxides and contributes to the search of ferroelectricity by design in symmetry-breaking magnetic oxide superlattices.
- Received 13 January 2020
- Revised 6 May 2020
- Accepted 29 May 2020
- Corrected 25 February 2021
DOI:https://doi.org/10.1103/PhysRevMaterials.4.064417
©2020 American Physical Society
Physics Subject Headings (PhySH)
Corrections
25 February 2021
Correction: The inline equation for the tolerance factor in the first paragraph of Sec. 1 contained an error and has been fixed.