Сибирский федеральный университет

Тип публикации: статья из журнала

Год издания: 2008

Идентификатор DOI: 10.1134/S1063783408060140

Аннотация: The effective spin Hamiltonian for undoped cuprates is constructed in the framework of the realistic multiband p-d model with the parameters calculated from first principles. The exchange interaction parameter is defined as the sum of the antiferromagnetic and ferromagnetic contributions, which are determined by the two-hole triplet terms. The ferromagnetic and antiferromagnetic contributions of the excited terms compensate each other to a large extent. It is shown that the antiferromagnetic contribution of the two-hole ground singlet (1)A(1g) to the exchange interaction is dominant.

Журнал: PHYSICS OF THE SOLID STATE

Выпуск журнала: Vol. 50, Is. 6

Номера страниц: 1081-1086

ISSN журнала: 10637834

Место издания: NEW YORK

Издатель: MAIK NAUKA/INTERPERIODICA/SPRINGER

• Gavrichkov V.A. (Kirensky Institute of Physics,Siberian Branch,Russian Academy of Sciences)
• Ovchinnikov S.G. (Siberian Federal University)

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