Physical properties of the noncentrosymmetric superconductor Mg10Ir19B16

T. Klimczuk, F. Ronning, V. Sidorov, R. J. Cava, J. D. Thompson

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Specific heat, electrical resistivity, and magnetic susceptibility measurements on a high quality sample of Mg10Ir19B16 provide a self-consistent determination of its superconducting properties. They indicate that Mg10Ir19B16 is a type-II superconductor [TC=4.45K, κ(0) 20], with an electron-phonon coupling constant λep=0.66. An analysis of the T-dependent specific heat shows that superconducting properties are dominated by an s-wave gap (Δ=0.7meV). Point contact tunneling data provide evidence for multiple superconducting gaps, as expected from strong asymmetric spin-orbit coupling.

Original languageEnglish (US)
Article number257004
JournalPhysical review letters
Issue number25
StatePublished - Dec 19 2007

All Science Journal Classification (ASJC) codes

  • General Physics and Astronomy


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