The effective Hamiltonian for copper oxides


Тип публикации: статья из журнала

Год издания: 2008

Идентификатор DOI: 10.3103/S1062873808080182

Ключевые слова: Concentration (process), Copper, Metal ions, Concentration dependences, Copper ions, Effective Hamiltonian, Spin moments, Copper oxides

Аннотация: The concentration dependence of the exchange integral for the subsystem of spin moments of copper ions J(h) = J - J1 ? h - J2 ? h2 has been calculated for the Emery model within the effective Hamiltonian obtained with due regard to intersite interactions and oxygen configurations with different numbers of holes. It is shown that alПоказать полностьюlowance for the oxygen single-hole states occurring upon doping leads to additional contributions to J(h), whose intensities depend on the intersite correlations of the nearest environment of exchange-coupled copper ions. © Allerton Press, Inc. 2008.

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Журнал: Bulletin of the Russian Academy of Sciences: Physics

Выпуск журнала: Vol. 72, Is. 8

Номера страниц: 1083-1085


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