Electronic structure, electron–phonon coupling and superconductivity of isotypic noncentrosymmetric crystals Li2Pd3B and Li2Pt3B
نویسندگان
چکیده
منابع مشابه
Electronic structure, electron-phonon coupling and superconductivity of isotypic noncentrosymmetric crystals Li2Pd3B and Li2Pt3B
Electronic structure of recently discovered isotypic ternary borides Li2Pd3B and Li2Pt3B, with noncentrosymmetric crystal structures, is studied with a view to understanding their superconducting properties. Estimates of the Fermi-surface averaged electron-phonon matrix element and Hopfield parameter are obtained in the rigid ion approximation of Gaspari and Gyorffy [Phys. Rev. Lett. 28 (1972) ...
متن کاملA ug 2 00 5 Electronic structure , electron - phonon coupling and superconductivity of isotypic noncentrosymmetric crystals Li 2 Pd 3 B and Li 2 Pt 3
Electronic structure of recently discovered isotypic ternary borides Li2Pd3B and Li2Pt3B, with noncentrosymmetric crystal structures, is studied with a view to understanding their superconducting properties. Estimates of the Fermi-surface averaged electron-phonon matrix element and Hopfield parameter are obtained in the rigid ion approximation of Gaspari and Gyorffy [Phys. Rev. Lett. 28 (1972) ...
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We investigate the order parameter of noncentrosymmetric superconductors Li2Pd3B and Li2Pt3B via the behavior of the penetration depth lambda(T). The low-temperature penetration depth shows BCS-like behavior in Li2Pd3B, while in Li2Pt3B it follows a linear temperature dependence. We propose that broken inversion symmetry and the accompanying antisymmetric spin-orbit coupling, which admix spin-s...
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ژورنال
عنوان ژورنال: Physica C: Superconductivity
سال: 2005
ISSN: 0921-4534
DOI: 10.1016/j.physc.2005.08.006