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

Research output: Contribution to journalArticle

8 Citations (Scopus)

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.

Original languageEnglish
Article number025002
JournalJournal of the Physical Society of Japan
Volume86
Issue number2
DOIs
Publication statusPublished - 2017

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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