Site-Selective Antimony Doping in Arsenic Zigzag Chains of 112-type Ca1-xLaxFeAs2

Hiromi Ota; Kazutaka Kudo; Takumi Kimura; Yutaka Kitahama; Tasuku Mizukami; Satoshi Ioka; Minoru Nohara

doi:10.7566/JPSJ.86.025002

Site-Selective Antimony Doping in Arsenic Zigzag Chains of 112-type Ca1-xLaxFeAs2

Superconductivity 2017-02-10 v1

Authors: Hiromi Ota , Kazutaka Kudo , Takumi Kimura , Yutaka Kitahama , Tasuku Mizukami , Satoshi Ioka , Minoru Nohara

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Abstract

Single crystal X-ray diffraction studies were performed for the Sb-doped 112-type iron-based superconductor Ca1-xLaxFeAs2 with the superconducting transition temperature Tc of 47 K. Doped Sb preferably substituted not for As(1) in the FeAs layers but for As(2) in the layers of As zigzag chains. Structural reasons for Tc enhancement by Sb doping were discussed.

Keywords

site-selective doping antimony doping 112-type iron-based superconductor Ca1-xLaxFeAs2 arsenic zigzag chains superconducting transition temperature single crystal X-ray diffraction

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@article{arxiv.1702.02672,
  title  = {Site-Selective Antimony Doping in Arsenic Zigzag Chains of 112-type Ca1-xLaxFeAs2},
  author = {Hiromi Ota and Kazutaka Kudo and Takumi Kimura and Yutaka Kitahama and Tasuku Mizukami and Satoshi Ioka and Minoru Nohara},
  journal= {arXiv preprint arXiv:1702.02672},
  year   = {2017}
}

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3 pages, 1 figure, 2 tables

Site-Selective Antimony Doping in Arsenic Zigzag Chains of 112-type Ca1-xLaxFeAs2

Abstract

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