172 citations · 542 across the 14 of their papers we have counts for
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Interplay of Coulomb repulsion and spin-orbit coupling in superconducting 3D quadratic band touching Luttinger semimetals
Serguei Tchoumakov, Louis J. Godbout, William Witczak-Krempa
We investigate the superconductivity of 3D Luttinger semimetals, such as YPtBi, where Cooper pairs are constituted of spin-3/2 quasiparticles. Various pairing mechanisms have alrea…
Determination of the crystal field splitting energy in Cd3As2 using magnetooptics
G. Krizman, T. Schumann, S. Tchoumakov +4
Symmetry considerations are of extreme importance to the topological properties of crystals. A crystal field splitting δ yields Dirac nodes near the Brillouin zone center in Cd3As2…
Superconductivity from Coulomb repulsion in three-dimensional quadratic band touching Luttinger semimetals
Serguei Tchoumakov, Louis J. Godbout, William Witczak-Krempa
We study superconductivity driven by screened Coulomb repulsion in three-dimensional Luttinger semimetals with a quadratic band touching and strong spin-orbit coupling. In these se…
Dielectric and electronic properties of three-dimensional Luttinger semimetals with a quadratic band touching
Serguei Tchoumakov, William Witczak-Krempa
Due to strong spin-orbit coupling, charge carriers in three-dimensional quadratic band touching Luttinger semimetals have non-trivial wavefunctions characterized by a pseudospin of…