Тип публикации: статья из журнала (материалы конференций, опубликованные в журналах)
Конференция: Euro-Asian Symposium on Trends in Magnetism; EKATERINBURG, RUSSIA; EKATERINBURG, RUSSIA
Год издания: 2002
Аннотация: Starting from the multiband p-d model of strongly correlated electrons, we derive the effective Hamiltonian in the form of the generalized singlet-triplet t-t'-J model which transforms to the usual t-t'-J model in the low-energy limit, Both n- and p-type copper oxides are considered in the mean field approximation for Gorkov type GПоказать полностьюreen functions in the X-operator representation. Different signs of the Or ratio result in different normal state properties and T-c values conserving the d(x2-y2) gap symmetry both for n- and p-oxides. Comparison with ruthenates and the coexistence of superconductivity and magnetism in RuSr2GdCu2O8 are studied in the extended t-J-I model with ferromagnetic coupling between Ru ions.
Журнал: PHYSICS OF METALS AND METALLOGRAPHY
Выпуск журнала: Vol. 93
Номера страниц: 124-129
ISSN журнала: 0031918X
Место издания: BIRMINGHAM
Издатель: INTERPERIODICA