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Figure 13
Schematic sketch of the grown film. The initial (111)-oriented Fe3O4 grows in 3D islands on the SrTiO3(001) substrate. Afterwards, the space between these islands is filled and covered by (001)-oriented Fe3O4. Even though, for reasons of simplicity, the (111) orientation has been sketched here as simple islands on the substrate, it cannot be excluded that an additional thin layer of (111)-oriented Fe3O4 exists at the interface, meaning that this is a case of layer-plus-island growth (Stranski–Krastanov). This structure applies generally to all samples studied. Only the respective layer thicknesses and the proportion of (111) islands differ.

Journal logoJOURNAL OF
APPLIED
CRYSTALLOGRAPHY
ISSN: 1600-5767
Volume 59| Part 3| June 2026| Pages 889-900
https://doi.org/10.1107/S1600576726003316
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