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arXiv · 0811.1123

Substitution Effects on FeSe Superconductor

Y. Mizuguchi·F. Tomioka·S. Tsuda·T. Yamaguchi·Y. Takano
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Abstract

We have investigated the effect of atomic substitutions in the FeSe system, which exhibits the simplest crystal structure among the iron-based superconductors. An enhancement of the superconducting transition temperature Tc was observed with the substitution of S or Te for Se; the Tc increased with S substitution by up to 20 %, and also increased with Te substitution up to 75 %. In contrast, Co or Ni substitutions for the Fe site significantly suppressed superconductivity. In this work we present a detailed description of the substitution technique employed to determine Tc in the FeSe system.

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Y. Mizuguchi, F. Tomioka, S. Tsuda, T. Yamaguchi, Y. Takano. 2009-06-15. Substitution Effects on FeSe Superconductor. https://doi.org/10.1143/jpsj.78.074712

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