Pressure-induced superconductivity in Iron pnictide compound SrFe2As2
K. Igawa, H. Okada, H. Takahashi, S. Matsuishi, Y. Kamihara, M., Hirano, H. Hosono, K. Matsubayashi, and Y. Uwatoko
TL;DR
This study demonstrates that applying high pressure to SrFe2As2 induces superconductivity with a maximum Tc of 38 K, comparable to optimally doped AFe2As2 compounds, revealing pressure as a tuning parameter.
Contribution
It reports the discovery of pressure-induced superconductivity in SrFe2As2, expanding understanding of how pressure can induce superconductivity in iron pnictides.
Findings
Superconductivity appears at pressures up to 14 GPa.
Maximum Tc observed is 38 K.
Pressure induces zero resistivity in SrFe2As2.
Abstract
Electrical resistivity under high pressure have been measured on nominally pure SrFe2As2 up to 14 GPa. The resistivity drop appeared with increasing pressure, and we clearly observed zero resistivity. The maximum of superconducting transition temperature (Tc) is 38 K. The value is corresponding to the one of optimally doping AFe2As2 (A=Sr, Ba) system with K+ ions at the A2+ site.
Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.