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Spiral magnetic order, non-uniform states and electron correlations in the conducting transition metal systemsстатья
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 6 февраля 2018 г.
- Авторы: Igoshev P.A., Timirgazin M.A., Arzhnikov A.K., Antipin T.V., Irkhin V.Yu
- Журнал: Journal of Magnetism and Magnetic Materials
- Том: 440
- Год издания: 2017
- Издательство: Elsevier BV
- Местоположение издательства: Netherlands
- Первая страница: 66
- Последняя страница: 69
- DOI: 10.1016/j.jmmm.2016.12.064
- Аннотация: The ground-state magnetic phase diagram is calculated within the Hubbard and s-d exchange (Kondo) models for square and simple cubic lattices vs. band filling and interaction parameter. The difference of the results owing to the presence of localized moments in the latter model is discussed. We employ a generalized Hartree-Fock approximation (HFA) to treat commensurate ferromagnetic (FM), antiferromagnetic (AFM), and incommensurate (spiral) magnetic phases. The electron correlations are taken into account within the Hubbard model by using the Kotliar-Ruckenstein slave boson approximation (SBA). The main advantage of this approach is a correct qualitative description of the paramagnetic phase: its energy becomes considerably lower as compared with HFA, and the gain in the energy of magnetic phases is substantially reduced.
- Добавил в систему: Тимиргазин Марат Аликович