Zobrazeno 1 - 10
of 23
pro vyhledávání: '"M. M. Korovushkin"'
Publikováno v:
JETP Letters. 114:289-295
The spectral properties of an ensemble of spin-polaron quasiparticles have been studied within the spin–fermion model of cuprate superconductors using the method combining the Feynman diagram technique and the diagram technique for spin operators.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1f776ba25e66cc9b1c0384f108be2d21
https://doi.org/10.1134/s0021364021170094
https://doi.org/10.1134/s0021364021170094
Publikováno v:
Journal of Low Temperature Physics. 197:34-43
Taking into account the real crystalline structure of the $$\hbox {CuO}_2$$ plane within the spin-fermion model and using the diagram technique, the spin-polaron concept of the fermionic excitations in cuprate superconductors is implemented. It is sh
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::257c97bd0bcbafd210d4574f2197a3ca
https://doi.org/10.1007/s10909-019-02211-9
https://doi.org/10.1007/s10909-019-02211-9
Publikováno v:
Journal of Experimental and Theoretical Physics. 128:885-898
The Fermi excitation spectrum, the problem of Cooper instability, and the Londons magnetic field penetration depth in cuprate superconductors are considered using the unified conception based on accounting for the strong coupling between the spin of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6906aebecc86457ce3361639ad40da70
https://doi.org/10.1134/s1063776119050078
https://doi.org/10.1134/s1063776119050078
Publikováno v:
Journal of Low Temperature Physics. 191:408-425
Taking into account the real crystalline structure of the $$\hbox {CuO}_2$$ plane and the strong spin-fermion coupling, we study the influence of the intersite Coulomb repulsion between holes on the Cooper instability of the spin-polaron quasiparticl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d725d2e56474b1875153981b65a2eef8
https://doi.org/10.1007/s10909-018-1882-7
https://doi.org/10.1007/s10909-018-1882-7
Publikováno v:
Journal of Experimental and Theoretical Physics. 125:810-821
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 crystallographic structure of the CuO2 plane, which are associated
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::905e1f23651bf0c9668982785c582e87
https://doi.org/10.1134/s1063776117110085
https://doi.org/10.1134/s1063776117110085
Publikováno v:
Journal of Magnetism and Magnetic Materials. 440:123-126
Within the spin-fermion model for cuprate superconductors, the influence of the intersite Coulomb interactions $V_2$ and $V_2'$ between holes located at the next-nearest-neighbor oxygen ions of CuO$_2$ plane on the implementation of the d_{x^2-y^2}-w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b800895a582ed7137d71b108e301e44f
https://doi.org/10.1016/j.jmmm.2016.12.090
https://doi.org/10.1016/j.jmmm.2016.12.090
Publikováno v:
JETP Letters. 103:385-389
It has been shown that, because of the two-orbital character of the subsystem of holes located at oxygen sites and the spatial separation of this subsystem from that of spins at copper ions, the superconducting phase in high-T c superconductors is st
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b69a2efa06c81b93d7fe0847bcea02bc
https://doi.org/10.1134/s0021364016060114
https://doi.org/10.1134/s0021364016060114
Publikováno v:
Physics-Uspekhi. 58:733-761
We discuss the mechanisms of unconventional superconductivity and superfluidity in 3D and 2D fermionic systems with purely repulsive interaction at low densities. We construct phase diagrams of these systems and find the areas of the superconducting
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::adc95b26447f307e93884a122355a128
https://doi.org/10.3367/ufne.0185.201508a.0785
https://doi.org/10.3367/ufne.0185.201508a.0785
Publikováno v:
JETP Letters. 97:226-232
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 interactions within the first and second coordination spheres. It is sh
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2e84bebb63bf431b8a3d9c4819a63daa
https://doi.org/10.1134/s0021364013040085
https://doi.org/10.1134/s0021364013040085
Publikováno v:
Physics of the Solid State. 53:2001-2004
The influence of spin and charge fluctuations on the pseudogap formation in cuprate superconductors has been studied using the diagram technique for Hubbard operators. It has been shown that the joint inclusion of the spin and charge fluctuations lea
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::11ab189d6bcf2cc4f76be14c16c287f8
https://doi.org/10.1134/s1063783411100349
https://doi.org/10.1134/s1063783411100349