Zobrazeno 1 - 10
of 104
pro vyhledávání: '"T. A. Val'kova"'
Publikováno v:
Journal of Experimental and Theoretical Physics. 130:235-246
It is shown that interlayer electron tunneling in the quasi-two-dimensional ensemble of Hubbard fermions leads to the realization of the gapless superconducting phase with the chiral (d + id)-wave order parameter symmetry, not for a single value of s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2f98c18c4875e2f57fc7fe018872a191
https://doi.org/10.1134/s1063776120010197
https://doi.org/10.1134/s1063776120010197
Publikováno v:
Journal of Magnetism and Magnetic Materials. 440:129-132
Using the diagram technique for the Hubbard operators an integral equation that determines the order parameter of the superconducting phase Δ ( p ) was obtained in the framework of t–J–V and t–J*–V models on triangular lattice. It is shown t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::80557c4e71c456dc99dd79ce75037ee5
https://doi.org/10.1016/j.jmmm.2016.12.085
https://doi.org/10.1016/j.jmmm.2016.12.085
Publikováno v:
Bulletin of the Russian Academy of Sciences: Physics. 80:612-615
The concentration dependence of the position of nodal points of a superconducting order parameter is investigated using the t–J–V model for a triangular lattice with regard to the exchange and Coulomb interactions in two coordination spheres. The
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::af25dd87acac673aa34aef25bec939e6
https://doi.org/10.3103/s1062873816060393
https://doi.org/10.3103/s1062873816060393
Publikováno v:
JETP Letters. 102:361-366
In the framework of the t–J1–J2–V model, the integral equation determining the order parameter Δ(p) of the superconducting phase is derived for an ensemble of strongly correlated fermions on a triangular lattice using the diagram technique for
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::88a4fb8d45f73eab6478acbb4087a645
https://doi.org/10.1134/s0021364015180162
https://doi.org/10.1134/s0021364015180162
Publikováno v:
Bulletin of the Russian Academy of Sciences: Physics. 79:746-748
An effective temperature-dependent scattering matrix for a localized subsystem is obtained in the periodic Anderson model by summing itinerant variables in the diagrammatic series of perturbation theory. The effective interaction that occurs in this
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d88dc1159944aa8afdc021c159c3530c
https://doi.org/10.3103/s1062873815060349
https://doi.org/10.3103/s1062873815060349
Publikováno v:
Ferroelectrics. 444:162-167
The developed model of self-organizing polymer chains with intra- and intermolecular interactions of dipole type was used for a description of the effect of birefringence in surface nano-layers in the polymer films, evaporated from a solvent. Calcula
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6e27e215ec5153e244a6206f02c01e7f
https://doi.org/10.1080/00150193.2013.786641
https://doi.org/10.1080/00150193.2013.786641
Publikováno v:
Physics of the Solid State. 53:2061-2066
The excitation spectrum of a non-Heisenberg 2D antiferromagnet with the four-spin interaction of cubic symmetry has been calculated in the first order of 1/2S. It has been shown that, for weak anisotropy, the Neel state is destroyed by quantum fluctu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::11c94639edf5b06b1285fcaa69d06613
https://doi.org/10.1134/s1063783411100350
https://doi.org/10.1134/s1063783411100350
Publikováno v:
Modern Physics Letters B. 17:441-449
The effect of three-center interactions on the formation of a superconducting phase with dx2-y2-symmetry is considered using the diagram technique for Hubbard operators and irreducible Green's functions. It is shown that these interactions lead to a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2d365c8e21b163f5a67ede3194f18688
https://doi.org/10.1142/s0217984903005469
https://doi.org/10.1142/s0217984903005469
Autor:
V. V. Val’kov, T. A. Val’kova
Publikováno v:
Bulletin of the Russian Academy of Sciences: Physics. 76:768-770
Using the diagram technique for spin operators, the exact representations for quantum magnets are obtained that express the Green’s functions via the components of mass operator Σαβ, end factors L and Q, and the Larkin- and Dyson-irreducible par
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::80048967568e123bd25aa455d588c720
https://doi.org/10.3103/s1062873812070374
https://doi.org/10.3103/s1062873812070374
Autor:
R A, Zinchenko, S S, Amelina, G I, El'chinova, R A, Val'kov, N V, Kriventsova, T I, Val'kova, N V, Vetrova, R A, Shokarev, N V, Petrova, O V, Khlebnikova
Publikováno v:
Genetika. 45(4)
A genetic epidemiological study has been carried out in eight raions (districts) of Rostov oblast (region) of Russia: Tsimlyansk, Volgodonskoi, Tselina, Egorlykskaya, Millerovo, Tarasovskaya, Rodionovo-Nesvetaiskaya, and Matveevo-Kurgan raions. The p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid_dedup__::9ceb31c07d0a1ae03e153bf9f3d43c39
https://pubmed.ncbi.nlm.nih.gov/19507707
https://pubmed.ncbi.nlm.nih.gov/19507707