On the functional representation of partition function for quantum magnetic cluster systems
The problem of the functional representation for systems containing groups of atoms with a non-compensated spin momentum (magnetic clusters) is discussed. For representation of the functional of partition function a version of the collective variables method with the “reference system” as a zero...
Збережено в:
| Дата: | 2002 |
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| Автор: | |
| Формат: | Стаття |
| Мова: | English |
| Опубліковано: |
Інститут фізики конденсованих систем НАН України
2002
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| Назва видання: | Condensed Matter Physics |
| Онлайн доступ: | http://dspace.nbuv.gov.ua/handle/123456789/120668 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Цитувати: | On the functional representation of partition function for quantum magnetic cluster systems / N.A. Korynevskii // Condensed Matter Physics. — 2002. — Т. 5, № 3(31). — С. 391-412. — Бібліогр.: 15 назв. — англ. |
Репозитарії
Digital Library of Periodicals of National Academy of Sciences of Ukraine| Резюме: | The problem of the functional representation for systems containing groups
of atoms with a non-compensated spin momentum (magnetic clusters) is
discussed. For representation of the functional of partition function a version
of the collective variables method with the “reference system” as a
zero-order approximation is used. A set of all isolated clusters are choosen
as a reference system. Intracluster interactions are described by exchange
Heisenberg-type Hamiltonian, the form of intercluster interactions depend
on the structure of the system investigated. Due to the use of the recently
introduced generalized transition operators (like well-known HubbardStasyuk
operators) an explicit form of the functional of partition function is
found. |
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