33 citations · 72 across the 7 of their papers we have counts for
7 papers
Quantum Effects at a Spin-Flop Transition in the Antiferromagnetic Topological Insulator MnBiTe
V. V. Val'kov, A. O. Zlotnikov, A. Gamov +2
It is shown that the experimentally detected features in the low-temperature behavior of the magnetization in an external magnetic field perpendicular to the layers of manganese io…
Topological superconductivity and Majorana states in low-dimensional systems
V. V. Val'kov, M. S. Shustin, S. V. Aksenov +4
We discuss the properties of topologically nontrivial superconducting phases and the conditions for their realization in condensed matter, and the principles for identifying Majora…
Stability of the coexistence phase of chiral superconductivity and noncollinear spin ordering with a nontrivial topology and strong electron correlations
Valery V. Val'kov, Anton O. Zlotnikov
We show that the quantum charge and spin fluctuations, while sufficiently renormalizing the magnetic order parameter, do not destroy the coexistence phase of chiral d+id supercondu…
Coulomb interactions induced perfect spin filtering effect in a quadruple quantum-dot cell
M. Yu. Kagan, V. V. Val'kov, S. V. Aksenov
A quadruple quantum-dot (QQD) cell is proposed as a spin filter. The transport properties of the QQD cell were studied in linear response regime on the basis of the equations of mo…
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…
Microscopic derivation of the Ginzburg-Landau equations for the periodic Anderson model in the coexistence phase of superconductivity and antiferromagnetism
Valery V. Val'kov, Anton O. Zlotnikov
On the basis of the periodic Anderson model the microscopic Ginzburg-Landau equations for heavy-fermion superconductors in the coexistence phase of superconductivity and antiferrom…
d-Wave Pairing in an Ensemble of Spin Polaron Quasiparticles in the Spin-Fermion Model of the Electronic Structure of the CuO2 Plane
V. V. Val'kov, D. M. Dzebisashvili, A. F. Barabanov
It is demonstrated for the first time that the strong coupling between spin moments of copper ions and oxygen holes, which arises upon hybridazation mixing of two hole subsystems i…