31 citations · 198 across the 18 of their papers we have counts for
18 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…
The nontrivial ground state topology in the coexistence phase of chiral d-wave superconductivity and 120 degrees magnetic order on a triangular lattice
Valery V. Val'kov, Anton O. Zlotnikov, Maxim S. Shustin
The Z2 topological invariant is defined in the chiral d-wave superconductor having a triangular lattice in the presence of the 120 degrees magnetic ordering. By analyzing the Z2 in…
Magnetic-field orientation dependence of transport properties of topologically superconducting wire
V. V. Val'kov, S. V. Aksenov
We present the study of transport properties of a superconducting wire with strong Rashba spin-orbit coupling for different orientations of an external magnetic field. Using the no…
Effects of anisotropy and Coulomb interactions on quantum transport in a quadruple quantum-dot structure
M. Yu. Kagan, V. V. Val'kov, S. V. Aksenov
We present analytical and numerical investigation of spectral and transport properties of a quadruple quantum-dot (QQD) structure which is one of the popular low-dimensional system…
The generalized Kondo lattice model and its spin-polaron implementation for cuprates by projection method
V. V. Val'kov, D. M. Dzebisashvili, A. F. Barabanov
It is shown that the spin-fermion model found to be an effective low-energy implementation of the three-band Emery model after Wannier transformation of - and -orbitals i…
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…