Тип публикации: статья из журнала
Год издания: 2004
Идентификатор DOI: 10.1016/j.jmmm.2003.12.645
Ключевые слова: strongly correlated electron systems; high-T-c superconductivity; spin fluctuations; p-d model
Аннотация: In the present work the multiband p - d model for CuO2-layer is treated. It was shown that for the realistic set of parameters besides Zhang - Rice two-particle singlet state there is non-negligible contribution of two- particle triplet state to the top of the valence band. Also shown, that to gain quantitative agreement with experПоказать полностьюimental data the minimal approximation should include the spin fluctuations beyond the Hubbard-I scheme. Quasiparticle spectrum, obtained in this approximation, is in fairly good agreement with ARPES data on Bi2212 High - T-c compound. (C) 2003 Elsevier B. V. All rights reserved.
Журнал: JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
Выпуск журнала: Vol. 272
Номера страниц: 575-577
ISSN журнала: 03048853
Место издания: AMSTERDAM
Издатель: ELSEVIER SCIENCE BV