Synchrotron X-ray diffraction study of structural phase transition in Ca10(Ir4As8)(Fe2-xIrxAs2)5

Naoyuki Katayama, Kento Sugawara, Yuki Sugiyama, Takafumi Higuchi, Kazutaka Kudo, Daisuke Mitsuoka, Takashi Mizokawa, Minoru Nohara, Hiroshi Sawa

研究成果: Article査読

6 被引用数 (Scopus)

抄録

We report on the structural phase transition found in Ca10(Ir4As8)(Fe2-xIrxAs2)5, which exhibits superconductivity at 16 K. The c-axis parameter is doubled below a structural transition temperature of approximately 100 K, while the tetragonal symmetry with the space group P4/n (No. 85) is unchanged at all temperatures measured. Our synchrotron X-ray diffraction study clearly shows iridium ions at a non-coplanar position shift along the z-direction at the structural phase transition. We discuss the fact that iridium displacements affect superconductivity in Fe2As2 layers.

本文言語English
論文番号113707
ジャーナルjournal of the physical society of japan
83
11
DOI
出版ステータスPublished - 2014 11 15
外部発表はい

ASJC Scopus subject areas

  • 物理学および天文学(全般)

フィンガープリント

「Synchrotron X-ray diffraction study of structural phase transition in Ca<sub>10</sub>(Ir<sub>4</sub>As<sub>8</sub>)(Fe<sub>2-x</sub>IrxAs<sub>2</sub>)<sub>5</sub>」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

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