Epitaxial Growth of BaBiO<sub>3</sub> Thin Films on SrTiO<sub>3</sub>(001) and MgO(001) Substrates Using Molecular Beam Epitaxy: Controlling the Competition Between Crystal Orientations
BaBiO<sub>3</sub> has recently gained significant research attention as a parent material for an interesting family of alloyed compositions with multiple technological applications. In order to grow a variety of structures, a versatile deposition tool such as molecular beam epitaxy must...
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| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2025-06-01
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| Series: | Crystals |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2073-4352/15/6/534 |
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| Summary: | BaBiO<sub>3</sub> has recently gained significant research attention as a parent material for an interesting family of alloyed compositions with multiple technological applications. In order to grow a variety of structures, a versatile deposition tool such as molecular beam epitaxy must be employed. In this work, the molecular beam epitaxy growth of BaBiO<sub>3</sub> on SrTiO<sub>3</sub>(001) and MgO(001) substrates is studied. When grown by molecular beam epitaxy on SrTiO<sub>3</sub>(001) or MgO(001) substrates, BaBiO<sub>3</sub> is known to have two competing orientations, namely (001) and (011). Characterization of the thin film is carried out by X-ray diffraction, X-ray reflectivity, atomic force microscopy, Rutherford backscattering, and transmission electron microscopy. Pathways to block the growth of BaBiO<sub>3</sub>(011) and to grow only the technologically relevant BaBiO<sub>3</sub>(001) are described for both substrates. An understanding of the enabling mechanism of the co-growth is established from an epitaxial point of view. This can be beneficially utilized for the growth of different compositions in the BaBiO<sub>3</sub> material family in a more controlled manner. |
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| ISSN: | 2073-4352 |