25 citations · 90 across the 6 of their papers we have counts for
6 papers
Coulomb repulsion of holes and competition between d_{x^2-y^2}-wave and s-wave parings in cuprate superconductors
V. V. Val'kov, D. M. Dzebisashvili, M. M. Korovushkin +1
The effect of the Coulomb repulsion of holes on the Cooper instability in an ensemble of spin-polaron quasiparticles has been analyzed, taking into account the peculiarities of the…
Stability of the d-wave pairing with respect to the intersite Coulomb repulsion in cuprate superconductors
V. V. Val'kov, D. M. Dzebisashvili, M. M. Korovushkin +1
Within the spin-fermion model for cuprate superconductors, the influence of the intersite Coulomb interactions and between holes located at the next-nearest-neighbor o…
Stability of the superconducting -wave pairing towards the intersite Coulomb repulsion between oxygen holes in high-T superconductors
V. V. Val'kov, D. M. Dzebisashvili, M. M. Korovushkin +1
It is shown that an account for the space separatedness of the two-orbital subsystem of the oxygen holes and the subsystem of the localized spins of copper ions in high-T cupra…
The Kohn-Luttinger effect and anomalous pairing in new superconducting systems and graphene
M. Yu. Kagan, V. V. Val'kov, V. A. Mitskan +1
We present a review of theoretical investigations into the Kohn-Luttinger nonphonon superconductivity mechanism in various 3D and 2D repulsive electron systems described by the Fer…
Effect of long-range interactions on the Kohn-Luttinger mechanism of the Cooper instability in the Shubin-Vonsowsky model
M. Yu. Kagan, V. V. Val'kov, V. A. Mitskan +1
The problem of Cooper instability is studied by implementing the Kohn-Luttinger mechanism in the framework of the Shubin-Vonsowsky model taking into account the intersite Coulomb i…
The Kohn-Luttinger superconductivity in idealized doped graphene
M. Yu. Kagan, V. V. Val'kov, V. A. Mitskan +1
Idealized graphene monolayer is considered neglecting the van der Waals potential of the substrate and the role of the nonmagnetic impurities. The effect of the long-range Coulomb…