Characterization of the Heavy Metal Pyrochlore Lattice Superconductor CaIr2

Abstract

We report the electronic properties of the cubic laves phase superconductor CaIr2 (Tc = 5.8 K), in which the Ir atoms have a Pyrochlore lattice. The estimated superconducting parameters obtained from magnetization and specific heat measurements indicate that CaIr2 is a weakly coupled BCS superconductor. Electronic band structure calculations show that the Ir d-states are dominant at the Fermi level, creating a complex Fermi surface that is impacted substantially by spin orbit coupling.

6 pages, 4 figs and 1 table. arXiv admin note: text overlap with arXiv:1406.2956

References in corpus (3)

• Physical properties of the noncentrosymmetric superconductor Mg_10Ir_19B_16
• Superconducting Properties of BaBi${}_3$
• Superconductivity at 3.7 K in Ternary Silicide Li2IrSi3

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• High-pressure synthesis and superconductivity of the novel Laves phase BaIr2
• Strong-coupling superconductivity of the Heusler-type compound ScAu2Al: Ab-initio studies