Ba2Ti2Fe2As4O: A New Superconductor Containing Fe2As2 Layers and Ti2O Sheets
收藏Figshare2016-02-20 更新2026-04-29 收录
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https://figshare.com/articles/dataset/Ba_sub_2_sub_Ti_sub_2_sub_Fe_sub_2_sub_As_sub_4_sub_O_A_New_Superconductor_Containing_Fe_sub_2_sub_As_sub_2_sub_Layers_and_Ti_sub_2_sub_O_Sheets/2497792
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We have synthesized a new oxypnictide, Ba2Ti2Fe2As4O, via a solid-state reaction under a vacuum. The compound crystallizes in a body-centered tetragonal lattice, which can be viewed as an intergrowth of BaFe2As2 and BaTi2As2O, thus containing Fe2As2 layers and Ti2O sheets. Bulk superconductivity at 21 K is observed after annealing the as-prepared sample at 773 K for 40 h. In addition, an anomaly in resistivity and magnetic susceptibility around 125 K is revealed, suggesting a charge- or spin-density wave transition in the Ti sublattice.
创建时间：
2016-02-20
