Ir d-band Derived Superconductivity in the Lanthanum-Iridium System LaIr3

Abstract

The electronic properties of the heavy metal superconductor LaIr3 are reported. The estimated superconducting parameters obtained from physical properties measurements indicate that LaIr3 is a BCS-type superconductor. Electronic band structure calculations show that Ir d- states dominate the Fermi level. A comparison of electronic band structures of LaIr3 and LaRh3 shows that the Ir-compound has a strong spin-orbit-coupling effect, which creates a complex Fermi surface.

arXiv comment6 pages and 5 figures

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• Ir 5$d$-band Derived Superconductivity in LaIr${}_3$
• Ferromagnetism and structural phase transition in rhombohedral PrIr3
• Impact of the Ce $4f$ states in the electronic structure of the intermediate-valence superconductor CeIr${}_3$