Superconductivity of the partially ordered laves phase Mg2Ir2.3Ge1.7

Kazutaka Kudo, Toshiaki Honda, Hikaru Hiiragi, Hiromi Ota, Minoru Nohara

研究成果査読

抄録

A novel ternary Laves phase Mg2Ir2.3Ge1.7 was synthesized in this study. Single-crystal X-ray diffraction experiments confirmed a Mg2Cu3Si-type structure (P63=mmc, D46h, No. 194). The structure comprises a Mg hexagonal diamond, an Ir=Ge breathing Kagome network, and a Ge triangular networks; it is thus classified as a partially ordered Laves phase that is neither ordered nor disordered. This is in contrast to the isoelectronic Mg2Ir3Si with a fully ordered Laves phase structure. Magnetization and resistivity measurements show that bulk superconductivity occurs at 5.3 K in Mg2Ir2.3Ge1.7. The partially ordered phase is important because it forms a link between the disordered and ordered Laves phases. Moreover, our findings would provide an opportunity to study the effects of disorder on the breathing Kagome network.

本文言語English
論文番号123701
ジャーナルjournal of the physical society of japan
89
12
DOI
出版ステータスPublished - 12月 15 2020

ASJC Scopus subject areas

  • 物理学および天文学一般

フィンガープリント

「Superconductivity of the partially ordered laves phase Mg2Ir2.3Ge1.7」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。

引用スタイル