Тип публикации: статья из журнала
Год издания: 2005
Ключевые слова: Energy efficiency, Hamiltonians, Mathematical models, Metallography, Problem solving, Electron correlation, Low energy spectrum, Two electron problem, Electron transitions
Аннотация: The problem of the transition to the effective Hamiltonian is analyzed on the basis of the exact solution to the two-electron problem for the Hubbard, t-J, and t-J* models. It is shown that in the strong-electron-correlation regime of the passage to the effective Hamiltonian is correct in the t-J* model only. In this case, the t-J*Показать полностьюmodel reproduces the low-energy spectrum correctly for vertical bar t vertical bar
Журнал: PHYSICS OF METALS AND METALLOGRAPHY
Выпуск журнала: Vol. 100
Номера страниц: 10-13
ISSN журнала: 0031918X
Место издания: NEW YORK
Издатель: MAIK NAUKA/INTERPERIODICA/SPRINGER