Superconductivity in 122 antimonide SrPt2Sb2

Motoharu Imai, Satoshi Emura, Mitsuaki Nishio, Yoshitaka Matsushita, Soshi Ibuka, Naoya Eguchi, Fumihiro Ishikawa, Yuh Yamada, Takahiro Muranaka, Jun Akimitsu

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

Measurements of electrical resistivity ρ, magnetization M and specific heat C have revealed that SrPt2Sb2 is a type-II superconducting material with a superconducting critical temperature (Tc) of 2.1 K. The electronic specific heat coefficient γ and the ratio ΔC(Tc)/γTc are 9.2(1) mJ mol -1 K-2 and 1.29, respectively. The temperature dependence of ρ exhibits anomalies around 270 K. Synchrotron x-ray diffraction patterns at 295 and 134 K clearly indicate that SrPt2Sb2 undergoes a structural phase transition in the temperature range from 134 to 295 K, suggesting that the anomalies observed in ρ around 270 K are related to a structural phase transition.

Original languageEnglish
Article number075001
JournalSuperconductor Science and Technology
Volume26
Issue number7
DOIs
Publication statusPublished - Jul 1 2013
Externally publishedYes

ASJC Scopus subject areas

  • Ceramics and Composites
  • Condensed Matter Physics
  • Metals and Alloys
  • Electrical and Electronic Engineering
  • Materials Chemistry

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    Imai, M., Emura, S., Nishio, M., Matsushita, Y., Ibuka, S., Eguchi, N., Ishikawa, F., Yamada, Y., Muranaka, T., & Akimitsu, J. (2013). Superconductivity in 122 antimonide SrPt2Sb2. Superconductor Science and Technology, 26(7), [075001]. https://doi.org/10.1088/0953-2048/26/7/075001