Article
Dynamic spin susceptibility in a realistic ten-orbital model of iron-based compounds
E. A. Larionov
Federal Research Center “Krasnoyarsk Science Center SB RAS”, Akademgorodok, 50, 660036 Krasnoyarsk, Russia
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Akademgorodok, 50, 660036, Krasnoyarsk, Russia
e-mail: egor.larionov_rp@mail.ru
M. M. Korshunov
Federal Research Center “Krasnoyarsk Science Center SB RAS”, Akademgorodok, 50, 660036 Krasnoyarsk, Russia
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Akademgorodok, 50, 660036, Krasnoyarsk, Russia
Abstract
In this work, the parameters of the ten-orbital model were fitted so that the resulting Fermi surface qualitatively reproduces the experimentally observed one. The spin susceptibility was calculated taking into account local Coulomb electron-electron interactions. The orbitals making the dominant contribution to the spin susceptibility peak were identified.
Keywords: spin susceptibility; superconductivity; iron compounds.
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