BaFe2Se2O

Chemical Formula BaFe2Se2O
Composition Formula BaFe2Se2O
Crystal System Tetragonal
Space Group 129_P4/nmm
Lattice Parameter a = 4.0748(1) Å
b = 4.0748(1) Å
c = 7.1501(5) Å
α = 90°
β = 90°
γ = 90°
Characteristic

Fe2Se2O層が初めて同位相で積層した化合物。

Synthesis Route

BaOとFeとSeを高温高圧下で反応させることにより得られる。反応条件は5 GPa, 1000℃, 30min。

Properties

反強磁性絶縁体: TN = 106 K

Applications

なし

References

F. Takeiri, Y. Matsumoto, T. Yamamoto, N. Hayashi, Z. Li, T. Tohyama, C. Tassel, C. Ritter, Y. Narumi, M. Hagiwara, and H. Kageyama, ‘High-pressure synthesis of the layered iron oxyselenide BaFe2Se2O with strong magnetic anisotropy’, Phys. Rev. B 94, 184426-1-184426-6 (2016).

Keywords
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