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Val'kov Valerii Vladimirovich

Publications in Math-Net.Ru

  1. Temperature dependence of spin-flop transition in topological antiferromagnet MnBi2Te4

    TMF, 225:3 (2025),  647–667
  2. Néel temperature of a quasi-two-dimensional triangular-lattice antiferromagnet

    TMF, 223:2 (2025),  343–357
  3. Quantum effects at a spin-flop transition in the antiferromagnetic topological insulator MnBi$_2$Te$_4$

    Pis'ma v Zh. Èksper. Teoret. Fiz., 120:7 (2024),  521–529
  4. Interplay between magnetism and topology in MnBi$_2$Te$_4$

    Pis'ma v Zh. Èksper. Teoret. Fiz., 118:5 (2023),  330–337
  5. Excitation spectrum in an ensemble of Hubbard bosons

    Pis'ma v Zh. Èksper. Teoret. Fiz., 116:12 (2022),  857–862
  6. Topological superconductivity and Majorana states in low-dimensional systems

    UFN, 192:1 (2022),  3–44
  7. Splitting of the spectrum of fermionic excitations in a topological insulator by charge fluctuations

    Pis'ma v Zh. Èksper. Teoret. Fiz., 114:12 (2021),  812–817
  8. Spin-polaron concept in the theory of normal and superconducting states of cuprates

    UFN, 191:7 (2021),  673–704
  9. Edge states of an excitonic insulator with the spin–orbit interaction

    Pis'ma v Zh. Èksper. Teoret. Fiz., 111:11 (2020),  772–777
  10. Occurrence of topologically nontrivial phases, cascade of quantum transitions, and identification of Majorana modes in chiral superconductors and nanowires (scientific summary)

    Pis'ma v Zh. Èksper. Teoret. Fiz., 110:2 (2019),  126–139
  11. Stability of the coexistence phase of chiral superconductivity and noncollinear spin ordering with a nontrivial topology and strong electron correlations

    Pis'ma v Zh. Èksper. Teoret. Fiz., 109:11 (2019),  769–777
  12. Nonequilibrium Green's functions in the atomic representation and the problem of quantum transport of electrons through systems with internal degrees of freedom

    TMF, 194:2 (2018),  277–294
  13. Effect of the intersite Coulomb interaction on chiral superconductivity at the noncollinear spin ordering

    Fizika Tverdogo Tela, 59:11 (2017),  2100–2106
  14. Cascade of quantum transitions and magnetocaloric anomalies in an open nanowire

    Pis'ma v Zh. Èksper. Teoret. Fiz., 106:12 (2017),  762–768
  15. Fano antiresonance induced by the rashba spin-orbit coupling in systems with conduction channels exhibiting the points of nonanalyticity in fermion paths

    Pis'ma v Zh. Èksper. Teoret. Fiz., 106:5 (2017),  282–287
  16. Dynamical magnetic susceptibility in the spin-fermion model for cuprate superconductors

    TMF, 193:3 (2017),  515–529
  17. Generalized Kondo lattice model and its spin-polaron realization by the projection method for cuprates

    TMF, 191:2 (2017),  319–333
  18. Spin-polaron nature of fermion quasiparticles and their $d$-wave pairing in cuprate superconductors

    Pis'ma v Zh. Èksper. Teoret. Fiz., 104:10 (2016),  745–757
  19. Coexistence of the chiral superconductivity and noncollinear magnetic order in the ensemble of Hubbard fermions on a triangular lattice

    Pis'ma v Zh. Èksper. Teoret. Fiz., 104:7 (2016),  512–517
  20. Stability of the superconducting $d_{x^2-y^2}$ phase in high-$T_{\mathrm{c}}$ superconductors with respect to the intersite Coulomb repulsion of holes at oxygen

    Pis'ma v Zh. Èksper. Teoret. Fiz., 103:6 (2016),  433–437
  21. Superconducting phase with the ($d+id$) order parameter in an ensemble of Hubbard fermions on the triangular lattice

    Pis'ma v Zh. Èksper. Teoret. Fiz., 102:6 (2015),  399–404
  22. Radiation-induced modification of the temperature dependence of the magnetic susceptibility of a 1D magnet

    Pis'ma v Zh. Èksper. Teoret. Fiz., 100:7 (2014),  510–517
  23. Fermi surface evolution in the ensemble of spin-polarized quasiparticles in La$_{2-x}$Sr$_x$CuO$_4$

    Pis'ma v Zh. Èksper. Teoret. Fiz., 98:9 (2013),  596–601
  24. Effects of multiple reflection in the process of inelastic electron transport through an anisotropic magnetic atom

    Pis'ma v Zh. Èksper. Teoret. Fiz., 98:7 (2013),  459–465
  25. Effect of long-range interactions on the Kohn-Luttinger mechanism of the cooper instability in the Shubin-Vonsowsky model

    Pis'ma v Zh. Èksper. Teoret. Fiz., 97:4 (2013),  253–259
  26. Coexistence of superconductivity and antiferromagnetism in heavy-fermion intermetallides

    TMF, 174:3 (2013),  484–503
  27. On the implementation of the coexistence phase of antiferromagnetism and superconductivity in heavy-fermion intermetallides

    Pis'ma v Zh. Èksper. Teoret. Fiz., 95:7 (2012),  390–396
  28. Basis states and collective excitations of nonlocal three-spin polarons over the singlet phase of the CuO$_2$ plane

    Pis'ma v Zh. Èksper. Teoret. Fiz., 95:4 (2012),  224–229
  29. Quantum fluctuations in a two-dimensional antiferromagnet with four-spin interaction of cubic symmetry

    Fizika Tverdogo Tela, 53:10 (2011),  1957–1962
  30. Pseudogap formation in copper oxide superconductors with inclusion of spin and charge fluctuations

    Fizika Tverdogo Tela, 53:10 (2011),  1899–1902
  31. Influence of triplet states on the spectrum of collective spin-polaron excitations in a 2D Kondo lattice

    Fizika Tverdogo Tela, 53:10 (2011),  1895–1898
  32. Kinematic mechanism of the modulation of the spectral intensity in the spatially uniform system of Hubbard fermions

    Pis'ma v Zh. Èksper. Teoret. Fiz., 94:3 (2011),  215–219
  33. Triplet $p$-wave superconductivity in low-density extended Hubbard model with Coulomb repulsion

    Pis'ma v Zh. Èksper. Teoret. Fiz., 93:12 (2011),  807–812
  34. Thermodynamic properties of two-layer quasi-two-dimensional antiferromagnets

    TMF, 168:3 (2011),  417–427
  35. Cooper Instability of Nonlocal Spin Polarons in the CuO$_2$ Plane of High-Temperature Superconductors

    Pis'ma v Zh. Èksper. Teoret. Fiz., 92:9 (2010),  683–688
  36. Features of the low-temperature specific heat in underdoped YBa2Cu3O6 + x single crystals

    Pis'ma v Zh. Èksper. Teoret. Fiz., 92:5 (2010),  369–374
  37. Dynamical magnetic susceptibility of the periodic Anderson model in the chaotic phase approximation

    TMF, 164:2 (2010),  309–320
  38. Properties of the heavy-fermion spectrum in the canted phase of antiferromagnetic intermetallides

    TMF, 162:1 (2010),  125–149
  39. Effective interactions and the nature of Cooper instability of spin polarons in the 2D Kondo lattice

    Pis'ma v Zh. Èksper. Teoret. Fiz., 88:6 (2008),  426–430
  40. Effect of strong intersite correlations on the mixing of band and localized states of the periodic Anderson model

    Pis'ma v Zh. Èksper. Teoret. Fiz., 87:4 (2008),  234–239
  41. Effective interactions in the periodic Anderson model in the regime of mixed valency with strong correlations

    TMF, 157:2 (2008),  235–249
  42. On the s-type superconductivity in heavy-fermion compounds

    Pis'ma v Zh. Èksper. Teoret. Fiz., 84:4 (2006),  251–255
  43. Spectral representations and description of a superconducting state with $\mathbf{S}$-Type order parameter $\Delta(\mathbf{k})$

    Pis'ma v Zh. Èksper. Teoret. Fiz., 77:9 (2003),  604–608
  44. Modification of the superconducting order parameter $\Delta(k)$ by long-range interactions

    Pis'ma v Zh. Èksper. Teoret. Fiz., 77:7 (2003),  450–454
  45. The strong effect of three-center interactions on the formation of superconductivity with $\mathbf{d_{x^2-y^2}}$ symmetry in the $\mathbf{t-J^*}$ model

    Pis'ma v Zh. Èksper. Teoret. Fiz., 75:8 (2002),  450–454
  46. Quantum oscillations of resistance and magnetization in magnetic semiconductors and semimetals

    UFN, 167:9 (1997),  1016–1019
  47. Quantum excitation spectrum of anisotropic magnets with quadrupole interaction in noncollinear geometry

    Fizika Tverdogo Tela, 33:4 (1991),  1113–1121
  48. Phase transitions in anisotropic non-Heisenberg magnets with a tensor order parameter

    Fizika Tverdogo Tela, 32:12 (1990),  3522–3530
  49. Excitation spectrum of dimerized antiferromagnetic Heisenberg chain

    Fizika Tverdogo Tela, 32:7 (1990),  2001–2003
  50. Effect of strong crystalline field on the spectral properties of magnets with biquadratic exchange

    Fizika Tverdogo Tela, 31:6 (1989),  60–68
  51. Two-magnon excitation spectrum in an easy axis quasi two-dimensional ferromagnet

    Fizika Tverdogo Tela, 30:10 (1988),  3044–3047
  52. Unitary transformations of the group $U(N)$ and diagonalization of multilevel Hamiltonians

    TMF, 76:1 (1988),  143–152
  53. Influence of cubic anisotropy on the ground state and thermodynamic properties of Heisenberg magnets

    TMF, 59:3 (1984),  453–464
  54. Quantum size effect in magnetite thin films

    Fizika Tverdogo Tela, 25:6 (1983),  1896–1898
  55. Hubbard operators and spin-wave theory of Heisenberg magnets with arbitrary spin

    TMF, 50:3 (1982),  466–476

© Steklov Math. Inst. of RAS, 2026