Тип публикации: статья из журнала (материалы конференций, опубликованные в журналах)
Конференция: Euro-Asian Symposium on Trends in Magnetism (EASTMAG-2004); Krasnoyarsk State Univ, Krasnoyarsk, RUSSIA; Krasnoyarsk State Univ, Krasnoyarsk, RUSSIA
Год издания: 2005
Ключевые слова: Antiferromagnetic materials, Ground state, Magnetic fields, Magnetic moments, Mathematical models, Problem solving, Energy spectrum, Energy structure, Periodic Anderson model (PAM), Spin moments, Fermions
Аннотация: On the basis of the periodic Anderson model (PAM) with an antiferromagnetic (AFM) exchange interaction in the subsystem of localized spin moments, the problem of the energy spectrum of heavy-fermion antiferromagnets with a metallic-type ground state in the canted phase is considered. To simplify the determination of the self-consisПоказать полностьюtent set of equations, unitary transformations were used. It has been shown that the eighth-order dispersion equation can be represented as follows: Delta(k up arrow)((4))(omega)Delta(k down arrow)((4))(omega) = 0. The solutions to the equation describe eight-band spectrum of the heavy-fermion antiferromagnet in the canted phase when magnetic field is applied.
Журнал: Physics of Metals and Metallography
Выпуск журнала: Vol. 99, Is. SUPPL.1
Номера страниц: 106-109
ISSN журнала: 0031918X
Место издания: Birmingham
Издатель: Interperiodica