Replica Ornstein-Zernike equations for positionally frozen Heisenberg systems
We present the formulation of the Replica Ornstein-Zernike equations for a model of positionally frozen disordered Heisenberg spin system. The results are obtained for various models, one in which the particle positions correspond to a frozen hard sphere fluid, another system in which the con- f...
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/123456789/120743 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Цитувати: | Replica Ornstein-Zernike equations for positionally frozen Heisenberg systems / E. Lomba, C. Martin // Condensed Matter Physics. — 2003. — Т. 6, № 3(35). — С. 551-560. — Бібліогр.: 11 назв. — англ. |
Репозитарії
Digital Library of Periodicals of National Academy of Sciences of Ukraine| Резюме: | We present the formulation of the Replica Ornstein-Zernike equations for
a model of positionally frozen disordered Heisenberg spin system. The results
are obtained for various models, one in which the particle positions
correspond to a frozen hard sphere fluid, another system in which the con-
figurations are generated by a random insertion of hard spheres, a system
of randomly distributed spins, and finally a system corresponding to a soft
sphere fluid quenched at high and low temperatures. We will see that the
orientational structure of the spin system is fairly well reproduced by the
integral equation which, however, does not correctly account for the critical
behaviour. |
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