Superconductivity in SrFe2As2 with Pt Doping
Yoshihiro Nishikubo, Satomi Kakiya, Masataka Danura, Kazutaka Kudo,, Minoru Nohara
TL;DR
This paper reports the synthesis and characterization of Pt-doped SrFe2As2, demonstrating superconductivity at 17 K and highlighting the importance of element substitution in discovering higher Tc iron-based superconductors.
Contribution
It introduces Pt substitution in SrFe2As2 as a new route to induce superconductivity and explores how different element substitutions affect Tc.
Findings
Superconductivity observed at Tc = 17 K in Pt-doped SrFe2As2
Maximum shielding volume fraction at x=0.125
Tc varies with the substituted element
Abstract
We have synthesized polycrystalline samples of Pt-substituted SrFe2As2 and measured the temperature dependence of magnetization and electrical resistivity. We have observed the superconducting transition at Tc = 17 K with the maximum shielding volume fraction at x = 0.125 in Sr(Fe1-xPtx)2As2. It is found that the maximum Tc depends on the substituted element, so it is important to substitute various elements to explore new iron-based superconductors with higher Tc.
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