Microscopic analogue of the Landau free energy for three-dimensional Ising-like systems
A microscopic analogue of the Landau free energy for a three-dimensional one-component spin system is found below the critical temperature as a result of direct calculations. The obtained explicit expressions make it possible to analyse the dependence of coefficients of the analogue on temperatur...
Збережено в:
| Дата: | 2003 |
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| Автори: | , , |
| Формат: | Стаття |
| Мова: | English |
| Опубліковано: |
Інститут фізики конденсованих систем НАН України
2003
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| Назва видання: | Condensed Matter Physics |
| Онлайн доступ: | http://dspace.nbuv.gov.ua/handle/123456789/120712 |
| Теги: |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Цитувати: | Microscopic analogue of the Landau free energy for three-dimensional Ising-like systems / M.P. Kozlovskii, I.V. Pylyuk, O.O. Prytula // Condensed Matter Physics. — 2003. — Т. 6, № 2(34). — С. 197-204. — Бібліогр.: 17 назв. — англ. |
Репозитарії
Digital Library of Periodicals of National Academy of Sciences of Ukraine| Резюме: | A microscopic analogue of the Landau free energy for a three-dimensional
one-component spin system is found below the critical temperature as a
result of direct calculations. The obtained explicit expressions make it possible
to analyse the dependence of coefficients of the analogue on temperature
and microscopic parameters of the system. In contrast to the case
for the Landau theory, the temperature dependence of these coefficients
is nonanalytic. The quantities determining the coefficients in the expression
for a microscopic analogue of the Landau free energy as well as the
temperature-dependence curves for the order parameter of the system are
given for different values of the effective radius of the exponentially decreasing
interaction potential. |
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