BaTh$_2$Fe$_4$As$_4$(N$_{0.7}$O$_{0.3}$)$_2$: An Iron-Based Superconductor Stabilized by Inter-Block-Layer Charge Transfer

Ye-Ting Shao; Zhi-Cheng Wang; Bai-Zhuo Li; Si-Qi Wu; Ji-Feng Wu; Zhi Ren; Su-Wen Qiu; Can Rao; Cao Wang; Guang-Han Cao

doi:10.1007/s40843-019-9438-7

BaTh$_2$Fe$_4$As$_4$(N$_{0.7}$O$_{0.3}$)$_2$: An Iron-Based Superconductor Stabilized by Inter-Block-Layer Charge Transfer

Superconductivity 2019-08-13 v1 Materials Science Strongly Correlated Electrons

Authors: Ye-Ting Shao , Zhi-Cheng Wang , Bai-Zhuo Li , Si-Qi Wu , Ji-Feng Wu , Zhi Ren , Su-Wen Qiu , Can Rao , Cao Wang , Guang-Han Cao

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Abstract

Recently, An electron-doped 12442-type iron-based superconductor BaTh $_2$ Fe $_4$ As $_4$ (N $_{0.7}$ O $_{0.3}$ ) $_2$ 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 "BaFe $_2$ As $_2$ " and "ThFeAsN $_{0.7}$ O $_{0.3}$ " was found to be essential to stabilize the target compound. Dominant electron-type conduction and bulk superconducting transition at ~22 K were demonstrated.

Keywords

iron-based superconductor 12442-type baTh2fe4as4(n0.7o0.3)2 charge transfer solid-state reaction superconducting transition

Cite

@article{arxiv.1908.03992,
  title  = {BaTh$_2$Fe$_4$As$_4$(N$_{0.7}$O$_{0.3}$)$_2$: An Iron-Based Superconductor Stabilized by Inter-Block-Layer Charge Transfer},
  author = {Ye-Ting Shao and Zhi-Cheng Wang and Bai-Zhuo Li and Si-Qi Wu and Ji-Feng Wu and Zhi Ren and Su-Wen Qiu and Can Rao and Cao Wang and Guang-Han Cao},
  journal= {arXiv preprint arXiv:1908.03992},
  year   = {2019}
}

Comments

16 pages in total. 5 figures, 1 table (main article); 6 figures, 3 tables (Supporting Information)

BaTh$_2$Fe$_4$As$_4$(N$_{0.7}$O$_{0.3}$)$_2$: An Iron-Based Superconductor Stabilized by Inter-Block-Layer Charge Transfer

Abstract

Keywords

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