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Annealing induced superconductivity in perovskite-related iron-based mixed anion compounds Sr2VFeAsO3-δ.
- Source :
-
Journal of Applied Physics . May2013, Vol. 113 Issue 17, p17E157-17E157-3. 1p. - Publication Year :
- 2013
-
Abstract
- Polycrystalline samples of Sr2VFeAsO3-δ with perovskite-type carrier blocking layers were prepared by a solid state reaction using an alumina tube in a sealed silica tube. Sr2VFeAsO3-δ samples which were prepared as nominally δ = 0 were not synthesized as a single phase, suggesting that finite oxygen deficiency is inevitable for the compound. Although a sample, which exhibits relatively larger lattice volume, does not exhibit bulk superconductivity at temperatures ≥5 K, finite superconducting transition temperatures appear in the sample which exhibits smaller lattice volumes. These results support making the electronic and magnetic phase diagram of Sr2VFeAsO3-δ. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00218979
- Volume :
- 113
- Issue :
- 17
- Database :
- Academic Search Index
- Journal :
- Journal of Applied Physics
- Publication Type :
- Academic Journal
- Accession number :
- 87497700
- Full Text :
- https://doi.org/10.1063/1.4800087