Physical properties of the noncentrosymmetric superconductor Mg10Ir19B16

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

doi:10.1103/PhysRevLett.99.257004

Physical properties of the noncentrosymmetric superconductor Mg10Ir19B16

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

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100 Scopus citations

Abstract

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 language	English (US)
Article number	257004
Journal	Physical review letters
Volume	99
Issue number	25
DOIs	https://doi.org/10.1103/PhysRevLett.99.257004
State	Published - Dec 19 2007

All Science Journal Classification (ASJC) codes

General Physics and Astronomy

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10.1103/PhysRevLett.99.257004

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abstract = "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.",

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AU - Klimczuk, T.

AU - Ronning, F.

AU - Sidorov, V.

AU - Cava, R. J.

AU - Thompson, J. D.

PY - 2007/12/19

Y1 - 2007/12/19

N2 - 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.

AB - 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.

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JO - Physical review letters

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Physical properties of the noncentrosymmetric superconductor Mg10Ir19B16

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