Incommensurate magnetic structure in an antiferromagnet with a strong exchange interaction between delocalized and localized electrons
Автор: Aplesnin S.S., Zelenov F.V., Bandurina O.N., Mashkov P.P.
Журнал: Siberian Aerospace Journal @vestnik-sibsau-en
Рубрика: Technological processes and material science
Статья в выпуске: 3 vol.22, 2021 года.
Бесплатный доступ
The formation of an incommensurate three-dimensional magnetic order in an antiferromagnet as a re-sult of a strong correlation between holes and localized spins is studied. The spectrum of spin polarons, the spin density wave, and the wave vector of the structure are calculated in the Kondo lattice model. The magnetic system is considered in the adiabatic approximation, the sublattice magnetization and spin-spin correlation functions are presented in the mean-field approximation. The Fermi energy and s – d interaction energy are calculated. The heat capacity and heat capacity anomalies due to spin polarons are determined. Anomalies in the temperature dependence of conductivity and in optical conductivity in the lowenergy region are found.
Incommensurate magnetic structure, Kondo lattice, conductivity
Короткий адрес: https://sciup.org/148329583
IDR: 148329583 | DOI: 10.31772/2712-8970-2021-22-3-506-516
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