PARAMETERS OF THE EFFECTIVE SINGLET-TRIPLET MODEL FOR BAND STRUCTURE OF HIGH-TC CUPRATES BY VARIOUS APPROACHES

Описание

Тип публикации: статья из журнала

Год издания: 2004

Аннотация: We consider the problem of determining the parameters for high-Tc superconducting copper oxides. Various approaches, the ab initio LDA and LDA + U calculations and the generalized tight-binding (GTB) method for strongly correlated electron systems, are used to calculate hopping and exchange parameters of the effective singlet-triplПоказать полностьюet model for the CuO2 layer. The resulting parameters are in remarkably good agreement with each other and with parameters extracted from experiment. This set of parameters is proposed for proper quantitative description of physics of hole-doped high-Tc cuprates in the framework of effective models.

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Издание

Журнал: Журнал экспериментальной и теоретической физики

Выпуск журнала: Т.126, 3

Номера страниц: 642-649

ISSN журнала: 00444510

Место издания: Москва

Издатель: Федеральное государственное унитарное предприятие Академический научно-издательский, производственно-полиграфический и книгораспространительский центр Наука

Авторы

  • Korshunov M.M. (Kirensky Institute of Physics, Siberian Branch of Russian Academy of Sciences)
  • Gavrichkov V.A. (Kirensky Institute of Physics, Siberian Branch of Russian Academy of Sciences)
  • Ovchinnikov S.G. (Kirensky Institute of Physics, Siberian Branch of Russian Academy of Sciences)
  • Pchelkina Z.V. (Institute of Metal Physics, Ural Branch of Russian Academy of Sciences)
  • Nekrasov I.A. (Institute of Metal Physics, Ural Branch of Russian Academy of Sciences)
  • Кorotin М.Б. (Institute of Metal Physics, Ural Branch of Russian Academy of Sciences)
  • Anisimov V.I. (Institute of Metal Physics, Ural Branch of Russian Academy of Sciences)

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