Substrate-driven structural coherence in epitaxial hematite thin films for spintronics
In this work, we report the successful growth of high-quality epitaxial hematite ( -Fe O ) thin films on three different substrates: (0001)-oriented sapphire, and (111)-oriented perovskite-structured SrTiO and LaAlO . Structural characterization confirms epitaxial growth with a (0001) out-of-plane o...
| Autores: | , , , , , , , , |
|---|---|
| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2025 |
| País: | España |
| Institución: | Consejo Superior de Investigaciones Científicas (CSIC) |
| Repositorio: | DIGITAL.CSIC. Repositorio Institucional del CSIC |
| OAI Identifier: | oai:digital.csic.es:10261/404830 |
| Acceso en línea: | http://hdl.handle.net/10261/404830 |
| Access Level: | acceso abierto |
| Palabra clave: | Oxide heterostructures Epitaxial thin films Structural coherence Hematite thin films Antiferromagnetic spintronics |
| Sumario: | In this work, we report the successful growth of high-quality epitaxial hematite ( -Fe O ) thin films on three different substrates: (0001)-oriented sapphire, and (111)-oriented perovskite-structured SrTiO and LaAlO . Structural characterization confirms epitaxial growth with a (0001) out-of-plane orientation across all substrates. Synchrotron X-ray diffraction reveals that the films are highly relaxed, exhibiting systematic in-plane lattice variations driven by substrate-induced strain. Notably, films grown on perovskite substrates display enhanced in-plane crystal coherence compared to those on isostructural sapphire, indicating superior structural quality. These findings demonstrate the potential for seamless integration of hematite with perovskite oxides, enabling the development of high-quality oxide heterostructures for spintronic applications. |
|---|