Unveiling the ambient-condition structure of Sr <sub>2</sub> FeIrO <sub>6</sub> : a triclinic phase through synchrotron-based X-ray techniques and high pressure
Double perovskites with the formula A<sub>2</sub>BB'O<sub>6</sub>, such as Sr<sub>2</sub>FeIrO<sub>6</sub>, are being explored as unique platforms for unveiling diverse structural, electronic and magnetic properties. Inclusion of 3d and 5d transition metals in the B and B' sites, as in Sr<sub>2</sub>FeIrO<sub>6</sub>, enables the study of electron correlation and spin-orbit coupling effects to tailor promising properties. The structure of Sr<sub>2</sub>FeIrO<sub>6</sub> under ambient conditions has been widely debated, with theoretical and experimental studies suggesting several potential structures. This uncertainty complicates the understanding of its magnetic and electronic behaviours. High-pressure X-ray diffraction measurements, complemented by high-resolution powder X-ray diffraction studies under ambient conditions, have provided a definitive structural characterization of Sr<sub>2</sub>FeIrO<sub>6</sub>, crucial for interpreting its properties and guiding future research.
Authors
- Julio Pellicer‐Porres (ORCID: https://orcid.org/0000-0002-4288-900X)
- Hussien H. Osman (ORCID: https://orcid.org/0000-0003-1411-8299)
- Vanesa Paula Cuenca-Gotor (ORCID: https://orcid.org/0000-0003-0819-8528)
- F. J. Manjón (ORCID: https://orcid.org/0000-0002-3926-1705)
- Paula Kayser (ORCID: https://orcid.org/0000-0003-1779-1454)
- Cătălin Popescu (ORCID: https://orcid.org/0000-0001-6613-4739)
- GARBARINO Gaston Leonel (ORCID: https://orcid.org/0000-0003-4780-9520)
- Samuel Gallego‐Parra (ORCID: https://orcid.org/0000-0001-6516-4303)
- V. Monteseguro (ORCID: https://orcid.org/0000-0003-2709-3879)
- Tania García‐Sánchez (ORCID: https://orcid.org/0000-0001-5762-5325)
- Javier Ruiz‐Fuertes (ORCID: https://orcid.org/0000-0003-3175-7754)
- J. A. Sans (ORCID: https://orcid.org/0000-0001-9047-3992)
Institutions
- Universidad de Cantabria (ES)
- Universitat de València (ES)
- ALBA Synchrotron (Spain) (ES)
- European Synchrotron Radiation Facility (FR)
- Instituto de Ciencia de Materiales de Madrid (ES)
- Universitat Politècnica de València (ES)
Publication Details
- Journal
- IUCrJ
- Published
- 2025-09-22
- DOI
- https://doi.org/10.1107/s2052252525008218
- Primary Topic
- Advanced Condensed Matter Physics
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- Agencia Estatal de Investigación