Are Th doped Y2C3 and La2C3 two-band superconductors?

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The superconducting sesquicarbides R2C3 have noncentrosymmetric point group symmetry Td. Spin-orbit coupling lifts the spin degeneracy of electronic bands in the most of the Brillouin zone. Nevertheless, due to high symmetry, there are a few directions along which the Fermi surfaces must touch. This leads to the two-band effects in the superconducting state.
2+ pages. Proceedings of SCES'04. Final version. Added discussion on relevance to CePt3Si

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Superconductivity

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http://salesiana.dossiersoluciones.com/handle/123456789/24246

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/cond-mat/0406527
 http://arxiv.org/abs/cond-mat/0406527
 Physica B 359-361, 581 (2005)
 doi:10.1016/j.physb.2005.01.147

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