Superconductivity in pseudo-binary silicide SrNi xSi 2-x with AlB 2-type structure

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Abstract

We demonstrate the emergence of superconductivity in pseudo-binary silicide SrNi xSi 2-x. The compound exhibits a structural phase transition from the cubic SrSi 2-type structure (P4 132) to the hexagonal AlB 2-type structure (P6/mmm) upon substituting Ni for Si at approximately x = 0.1. The hexagonal structure is stabilized in the range of 0.1 <x <0.7. The superconducting phase appears in the vicinity of the structural phase boundary. Ni acts as a nonmagnetic dopant, as confirmed by the Pauli paramagnetic behavior.

Original languageEnglish
Article number023702
JournalJournal of the Physical Society of Japan
Volume81
Issue number2
DOIs
Publication statusPublished - Feb 2012

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superconductivity

Keywords

  • AlB -type structure
  • Alkaline-earth disilicide
  • SrSi
  • Superconductivity

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Superconductivity in pseudo-binary silicide SrNi xSi 2-x with AlB 2-type structure. / Pyon, Sunseng; Kudo, Kazutaka; Nohara, Minoru.

In: Journal of the Physical Society of Japan, Vol. 81, No. 2, 023702, 02.2012.

Research output: Contribution to journalArticle

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