Superconductivity in KCa2Fe4As4F2 with Separate Double Fe2As2 Layers
收藏Figshare2016-06-23 更新2026-04-29 收录
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https://figshare.com/articles/dataset/Superconductivity_in_KCa_sub_2_sub_Fe_sub_4_sub_As_sub_4_sub_F_sub_2_sub_with_Separate_Double_Fe_sub_2_sub_As_sub_2_sub_Layers/3454982
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We report the synthesis, crystal structure, and physical properties of a quinary iron arsenide fluoride, KCa2Fe4As4F2. The new compound crystallizes in a body-centered tetragonal lattice (space group I4/mmm, a = 3.8684(2) Å, c = 31.007(1) Å, Z = 2) that contains double Fe2As2 conducting layers separated by insulating Ca2F2 layers. Our measurements of electrical resistivity, direct-current magnetic susceptibility, and heat capacity demonstrate bulk superconductivity at 33 K in KCa2Fe4As4F2.
创建时间：
2016-06-23
