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. Sr2VFeAsO 3-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.
| Original language | English |
|---|---|
| Article number | 17E157 |
| Journal | Journal of Applied Physics |
| Volume | 113 |
| Issue number | 17 |
| DOIs | |
| Publication status | Published - 2013 May 7 |
Fingerprint
ASJC Scopus subject areas
- Physics and Astronomy(all)
Cite this
Annealing induced superconductivity in perovskite-related iron-based mixed anion compounds Sr2VFeAsO3-δ . / Tojo, Yujiro; Matoba, Masanori; Kamihara, Yoichi.
In: Journal of Applied Physics, Vol. 113, No. 17, 17E157, 07.05.2013.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Annealing induced superconductivity in perovskite-related iron-based mixed anion compounds Sr2VFeAsO3-δ
AU - Tojo, Yujiro
AU - Matoba, Masanori
AU - Kamihara, Yoichi
PY - 2013/5/7
Y1 - 2013/5/7
N2 - 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. Sr2VFeAsO 3-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.
AB - 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. Sr2VFeAsO 3-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.
UR - http://www.scopus.com/inward/record.url?scp=84877755703&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84877755703&partnerID=8YFLogxK
U2 - 10.1063/1.4800087
DO - 10.1063/1.4800087
M3 - Article
AN - SCOPUS:84877755703
VL - 113
JO - Journal of Applied Physics
JF - Journal of Applied Physics
SN - 0021-8979
IS - 17
M1 - 17E157
ER -