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 tripleПоказать полностьюt 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