Enhancement of Tc in BiS2-based superconductors NdO0.7F0.3BiS2 by substitution of Pb for Bi

S. Demura, Y. Fujisawa, S. Otsuki, R. Ishio, Y. Takano, H. Sakata

研究成果: ジャーナルへの寄稿記事査読

10 被引用数 (Scopus)

抄録

We succeed in enhancement of a superconducting transition temperature (Tc) for NdO0.7F0.3BiS2 single crystal by partial substitution of Pb for Bi. The Tc increases with increasing Pb concentration until 6%. The maximum Tczero is 5.6 K, which is the highest value among BiS2-based based superconductors synthesized under an ambient pressure. Pb substitution for Bi induces lattice shrinkage along the c-axis. These results reflect that superconductivity in this system is responsive to the lattice strain.

本文言語英語
ページ(範囲)40-44
ページ数5
ジャーナルSolid State Communications
223
DOI
出版ステータス出版済み - 1 12月 2015
外部発表はい

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