Superconductivity at 3.7 K in Ternary Silicide Li2IrSi3

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.

15 pages, 3 figures, 1 table

References in corpus (5)

• Superconductivity in diamond
• Anisotropic thermodynamic and transport properties of single crystalline (Ba${}_{1-x}$K${}_x$)Fe${}_2$As${}_2$ (x = 0 and 0.45)
• Specific heat of Nb_3Sn: The case for a second energy gap
• Specific heat and electronic states of superconducting boron-doped silicon carbide
• Superconductivity in Noncentrosymmetric Iridium Silicide Li2IrSi3

Cited by in corpus (6)

• New Ternary Superconducting Compound LaRu2As2: Physical Properties from DFT Calculations
• Superconductivity in the Hexagonal Ternary Phosphide ScIrP
• Characterization of the Heavy Metal Pyrochlore Lattice Superconductor CaIr2
• Ir d-band Derived Superconductivity in the Lanthanum-Iridium System LaIr3
• Kagome metals
• No superconductivity in Pb${}_9$Cu${}_1$(PO${}_4$)${}_6$O found in orbital and spin fluctuation exchange calculations