Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Andrey Katanin"'
Autor:
Petr A. Igoshev, Andrey Katanin
Publikováno v:
Physical Review B. 107
We investigate the possibility of ferromagnetic ordering in the non-degenerate Hubbard model on the face-centered cubic lattice within the functional renormalization group technique using temperature as a scale parameter. We assume the relations betw
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cb99f061a41fe2f46de77bfdeadcb9d1
https://doi.org/10.1103/physrevb.107.115105
https://doi.org/10.1103/physrevb.107.115105
Publikováno v:
Web of Science
We study electron correlations and their impact on magnetic properties of bcc vanadium by a combination of density functional and dynamical mean-field theory. The calculated uniform magnetic susceptibility {in bcc structure} is of Pauli type at low t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::00b08c41b5f493a28da03fb036c71a55
https://doi.org/10.1103/physrevb.107.035116
https://doi.org/10.1103/physrevb.107.035116
Autor:
Tagir Mazitov, Andrey Katanin
Publikováno v:
Physical Review B. 106
We study the effect of the formation and screening of local magnetic moments on the temperature- and interaction dependencies of spectral functions and resistivity in the vicinity of the metal-insulator transition. We use the dynamical mean-field the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::76f0ae55698762e2d01ba63c46f58169
https://doi.org/10.1103/physrevb.106.205148
https://doi.org/10.1103/physrevb.106.205148
Autor:
Andrey Katanin
We study electronic, charge, and magnetic properties of twisted bilayer graphene with fillings $2\leq n\leq 6$ per moire unit cell within the recently introduced formulation of extended dynamical mean-field theory (E-DMFT) for two-sublattice systems.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0c08966f3d762e406d42abec9af5e8d9
http://arxiv.org/abs/2206.06231
http://arxiv.org/abs/2206.06231
Autor:
Tagir Mazitov, Andrey Katanin
Publikováno v:
Physical Review B. 105
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::826efe2d51810b400da0e39e1891a8a7
https://doi.org/10.1103/physrevb.105.l081111
https://doi.org/10.1103/physrevb.105.l081111
Publikováno v:
Web of Science
We consider electronic correlation effects and their impact on magnetic properties of tetragonally distorted chemically ordered FeCo alloys (L1$_0$ structure) being a promising candidate for rare-earth-free permanent magnets. We employ a state-of-the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7409765df699ee9aeb05b49dbd8e8e4f
http://arxiv.org/abs/2202.03205
http://arxiv.org/abs/2202.03205
Autor:
Vladimir Protsenko, Andrey Katanin
Publikováno v:
Phys. Rev. B
Physical Review B
Physical Review B
We investigate magnetic, charge and transport properties of hexagonal graphene nanoflakes (GNFs) connected to two metallic leads by using the functional renormalization group (fRG) method. The interplay between the on-site and long-range interactions
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::eee8584a1afe03a1725758cf94112463
http://arxiv.org/abs/2108.05844
http://arxiv.org/abs/2108.05844
Autor:
Andrey Katanin
We investigate magnetic and charge correlations in graphene by using the formulation of extended dynamical mean-field theory (E-DMFT) for two-sublattice systems. First, we map the average non-local interaction onto the effective static interaction be
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::006a4f2d4035e5c244547974278a27f4