BaTh₂Fe₄As₄(N_0.7O_0.3)₂: An Iron-Based Superconductor Stabilized by Inter-Block-Layer Charge Transfer

2019/08/12 by Ye-Ting Shao, Zhi-Cheng Wang, Bai-Zhuo Li +7 · 1 citation
Physics and Astronomy · #cond-mat.mtrl-sci #cond-mat.str-el #cond-mat.supr-con

paper · pdf · doi:10.1007/s40843-019-9438-7

published as Sci. China Mater. 62(9), 1357-1362 (2019) · 16 pages in total. 5 figures, 1 table (main article); 6 figures, 3 tables (Supporting Information)

arxiv created 2019/08/12 · arxiv updated 2019/08/13

Abstract

Recently, An electron-doped 12442-type iron-based superconductor BaTh₂Fe₄As₄(N_0.7O_0.3)₂ has been successfully synthesized with high-temperature solid-state reactions on basis of a structural design. The inter-block-layer charge transfer between the constituent units of "BaFe₂As₂" and "ThFeAsN_0.7O_0.3" was found to be essential to stabilize the target compound. Dominant electron-type conduction and bulk superconducting transition at ~22 K were demonstrated.

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