Superconductivity at 3.7 K in Ternary Silicide Li2IrSi3
Daigorou Hirai, Rui Kawakami, Oxana V. Magdysyuk, Robert E. Dinnebier,, Alexander Yaresko, and Hidenori Takagi
TL;DR
This paper reports the discovery of superconductivity at 3.7 K in the new ternary lithium silicide Li2IrSi3, characterized by a covalent framework and weak-coupling BCS behavior.
Contribution
It introduces a new ternary lithium silicide compound exhibiting superconductivity and details its crystal structure and electronic properties.
Findings
Superconductivity observed at 3.7 K in Li2IrSi3
Crystal structure features IrSi6 antiprisms and Si triangles
Electronic specific heat indicates BCS weak-coupling superconductivity
Abstract
We report the discovery of superconductivity at Tc = 3.7 K in the new ternary lithium silicide Li2IrSi3. The crystal structure of Li2IrSi3 consists of IrSi6 antiprisms connected by Si triangles, giving rise to a three dimensional framework of covalent Si-Si and Si-Ir bonds. Electronic specific-heat in superconducting phase suggests that Li2IrSi3 is a BCS weak-coupling superconductor.
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.
Taxonomy
TopicsRare-earth and actinide compounds · Iron-based superconductors research · Superconductivity in MgB2 and Alloys