Electronic properties of superconducting Sr4V2Fe2As2O6 versus Sr4Sc2Fe2As2O6

2009/04/17 by I. R. Shein, Shein, I. R., A. L. Ivanovskiĭ +1
Business, Management and Accounting · Materials Science · #Corporate Taxation and Avoidance #FOS: Physical sciences #Intellectual Capital and Performance Analysis #Iron-based superconductors research #Superconductivity (cond-mat.supr-con)

paper · pdf · doi:10.48550/arxiv.0904.2671

openalex publication_date 2009/04/17 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

First principle FLAPW-GGA calculations have been performed with the purpose to understand the peculiarities of band structure and Fermi surface topology for recently discovered superconductor: Sr4V2Fe2As2O - in comparison with isostructural phase Sr4Sc2Fe2As2O6. Our main finding is that the replacement of Sc on vanadium leads to drastic transformation of electronic, magnetic and conductive properties of these materials: as against non-magnetic Sr4Sc2Fe2As2O6 which is formed from non-magnetic conducting [Fe2As2] and insulating [Sr4Sc2O6] blocks, Sr4V2Fe2As2O6 consists from non-magnetic conducting [Fe2As2] blocks and [Sr4V2O6] blocks which exhibit magnetic half-metallic properties.

Citations

• Electronic structure of Ti-doped Sr4Sc2Fe2As2O6

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