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 2013
Externally publishedYes

Fingerprint

Superconductivity
superconductivity
specific heat
anomalies
Specific heat
Phase transitions
critical temperature
synchrotrons
x ray diffraction
diffraction patterns
Synchrotrons
heat
Temperature
magnetization
Diffraction patterns
temperature dependence
Superconducting materials
electrical resistivity
Magnetization
coefficients

ASJC Scopus subject areas

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

Cite this

Imai, M., Emura, S., Nishio, M., Matsushita, Y., Ibuka, S., Eguchi, N., ... 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

Superconductivity in 122 antimonide SrPt2Sb2. / Imai, Motoharu; Emura, Satoshi; Nishio, Mitsuaki; Matsushita, Yoshitaka; Ibuka, Soshi; Eguchi, Naoya; Ishikawa, Fumihiro; Yamada, Yuh; Muranaka, Takahiro; Akimitsu, Jun.

In: Superconductor Science and Technology, Vol. 26, No. 7, 075001, 07.2013.

Research output: Contribution to journalArticle

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, vol. 26, no. 7, 075001. https://doi.org/10.1088/0953-2048/26/7/075001
Imai M, Emura S, Nishio M, Matsushita Y, Ibuka S, Eguchi N et al. Superconductivity in 122 antimonide SrPt2Sb2. Superconductor Science and Technology. 2013 Jul;26(7). 075001. https://doi.org/10.1088/0953-2048/26/7/075001
Imai, Motoharu ; Emura, Satoshi ; Nishio, Mitsuaki ; Matsushita, Yoshitaka ; Ibuka, Soshi ; Eguchi, Naoya ; Ishikawa, Fumihiro ; Yamada, Yuh ; Muranaka, Takahiro ; Akimitsu, Jun. / Superconductivity in 122 antimonide SrPt2Sb2. In: Superconductor Science and Technology. 2013 ; Vol. 26, No. 7.
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