A New Ferromagnetic Superconductor: CsEuFe$_4$As$_4$

Yi Liu; Ya-Bin Liu; Qian Chen; Zhang-Tu Tang; Wen-He Jiao; Qian Tao; Zhu-An Xu; Guang-Han Cao

doi:10.1007/s11434-016-1139-2

A New Ferromagnetic Superconductor: CsEuFe$_4$As$_4$

Superconductivity 2016-07-05 v1

Authors: Yi Liu , Ya-Bin Liu , Qian Chen , Zhang-Tu Tang , Wen-He Jiao , Qian Tao , Zhu-An Xu , Guang-Han Cao

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Abstract

Superconductivity (SC) and ferromagnetism (FM) are in general antagonistic, which makes their coexistence very rare. Following our recent discovery of robust coexistence of SC and FM in RbEuFe $_4$ As $_4$ [Y. Liu et al., arXiv: 1605.04396 (2016)], here we report another example of such a coexistence in its sister compound CsEuFe $_4$ As $_4$ , synthesized for the first time. The new material exhibits bulk SC at 35.2 K and Eu $^{2+}$ -spin ferromagnetic ordering at 15.5 K, demonstrating that it is a new robust ferromagnetic superconductor.

Keywords

superconductivity

Cite

@article{arxiv.1605.09007,
  title  = {A New Ferromagnetic Superconductor: CsEuFe$_4$As$_4$},
  author = {Yi Liu and Ya-Bin Liu and Qian Chen and Zhang-Tu Tang and Wen-He Jiao and Qian Tao and Zhu-An Xu and Guang-Han Cao},
  journal= {arXiv preprint arXiv:1605.09007},
  year   = {2016}
}

Comments

7 pages, 6 figures

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