The New Superconductor tP-SrPd2Bi2: Structural Polymorphism and Superconductivity in Intermetallics

Weiwei Xie, Elizabeth M. Seibel, Robert J. Cava

Research output: Contribution to journalArticle

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Abstract

We consider a system where structural polymorphism suggests the possible existence of superconductivity through the implied structural instability. SrPd2Bi2 has two polymorphs, which can be controlled by the synthesis temperature: a tetragonal form (CaBe2Ge2-type) and a monoclinic form (BaAu2Sb2-type). Although the crystallographic difference between the two forms may, at first, seem trivial, we show that tetragonal SrPd2Bi2 is superconducting at 2.0 K, whereas monoclinic SrPd2Bi2 is not. We rationalize this finding and place it in context with other 1-2-2 phases.

Original languageEnglish (US)
Pages (from-to)3203-3205
Number of pages3
JournalInorganic Chemistry
Volume55
Issue number7
DOIs
StatePublished - Apr 18 2016

All Science Journal Classification (ASJC) codes

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry

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