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Landau theory of superconducting phases in T_h crystals
S. H. Curnoe, I. A. Sergienko
We consider the Landau theory of phase transitions for multiple superconducting phases in T_h crystals. All possible phase transition sequences involving a single superconducting o…
Are Th doped Y2C3 and La2C3 two-band superconductors?
I. A. Sergienko
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 Brillo…
Order parameter in superconductors with non-degenerate bands
I. A. Sergienko, S. H. Curnoe
In noncentrosymmetric metals, the spin degeneracy of the electronic bands is lifted by spin-orbit coupling. We consider general symmetry properties of the pairing function Delta(k)…
Metallic "Ferroelectricity" in the Pyrochlore Cd2Re2O7
I. A. Sergienko, V. Keppens, M. McGuire +8
A class of materials known as ``ferroelectric metals'' was discussed theoretically by Anderson and Blount in 1965 [Phys. Rev. Lett. 14, 217 (1965)], but to date no examples of this…