How to cleave cubic perovskite oxides
Status PubMed-not-MEDLINE Jazyk angličtina Země Spojené státy americké Médium print
Typ dokumentu časopisecké články
PubMed
40111131
DOI
10.1063/5.0233747
PII: 3340225
Knihovny.cz E-zdroje
- Publikační typ
- časopisecké články MeSH
Surfaces of cubic perovskite oxides attract significant attention for their physical tunability and high potential for technical applications. Bulk-terminated surfaces are desirable for theoretical modeling and experimental reproducibility, yet there is a lack of methods for preparing such well-defined surfaces. We discuss a method for strain-assisted cleaving of perovskite single crystals, using a setup easily transferable between different experimental systems. The details of the cleaving device and the procedure were optimized in a systematic study on the model cubic perovskite oxide SrTiO3. The large-area morphology and typical distribution of surface terminations on cleaved SrTiO3(001) are presented, with specific guidelines on how to distinguish well-cleaved surfaces from conchoidally fractured ones. The cleaving is applicable to other cubic perovskites, as demonstrated on KTaO3(001) and BaTiO3(001). This approach opens up a pathway for obtaining high-quality surfaces of this promising class of materials.
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