Spin fluctuations influence on quasiparticle spectrum of realistic p-d model

Описание

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.

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Издание

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

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