Electronic structure and magnetic mechanism of pairing in HTSC transition metal oxides

Описание

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.

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Издание

Журнал: PHYSICS OF METALS AND METALLOGRAPHY

Выпуск журнала: Vol. 93

Номера страниц: 124-129

ISSN журнала: 0031918X

Место издания: BIRMINGHAM

Издатель: INTERPERIODICA

Авторы

  • Ovchinnikov S.G. (KRASNOYARSK STATE UNIV)
  • Baklanov I.O. (KRASNOYARSK STATE UNIV)
  • Borisov A.A. (KRASNOYARSK STATE UNIV)
  • Gavrichkov V.A. (KRASNOYARSK STATE UNIV)
  • Korshunov M.M. (KRASNOYARSK STATE UNIV)
  • Kuz'min E.V. (KRASNOYARSK STATE UNIV)
  • Sandalov I.S. (KRASNOYARSK STATE UNIV)
  • Erikson O. (KRASNOYARSK STATE UNIV)

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