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arXiv · 1409.3662

Superconductivity at 3.7 K in Ternary Silicide Li2IrSi3

Daigorou Hirai·Rui Kawakami·Oxana V. Magdysyuk·Robert E. Dinnebier·Alexander Yaresko·Hidenori Takagi
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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.

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Daigorou Hirai, Rui Kawakami, Oxana V. Magdysyuk, Robert E. Dinnebier, Alexander Yaresko, Hidenori Takagi. 2014-09-12. Superconductivity at 3.7 K in Ternary Silicide Li2IrSi3. https://doi.org/10.7566/jpsj.83.103703

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