Bethe lattice approach study of the mixed spin-1/2 and spin-7/2 Ising model in a longitudinal magnetic field
The magnetic properties of the mixed spin- 1/2 and spin- 7/2 Ising model with a crystal-field in a longitudinal magnetic field are investigated on the Bethe lattice using exact recursion relations. The ground-state phase diagram is constructed. The temperature-dependent one is displayed in the cas...
Збережено в:
| Дата: | 2018 |
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| Автори: | , , , , |
| Формат: | Стаття |
| Мова: | English |
| Опубліковано: |
Інститут фізики конденсованих систем НАН України
2018
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| Назва видання: | Condensed Matter Physics |
| Онлайн доступ: | http://dspace.nbuv.gov.ua/handle/123456789/157044 |
| Теги: |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Цитувати: | Bethe lattice approach study of the mixed spin-1/2 and spin-7/2 Ising model in a longitudinal magnetic field / S. Eddahri, M. Karimou, A. Razouk, F. Hontinfinde, A. Benyoussef // Condensed Matter Physics. — 2018. — Т. 21, № 1. — С. 13705: 1–16. — Бібліогр.: 51 назв. — англ. |
Репозитарії
Digital Library of Periodicals of National Academy of Sciences of Ukraine| Резюме: | The magnetic properties of the mixed spin- 1/2
and spin- 7/2
Ising model with a crystal-field in a longitudinal magnetic field are investigated on the Bethe lattice using exact recursion relations. The ground-state phase diagram is constructed. The temperature-dependent one is displayed in the case of uniform crystal-field on the
(kBT/|J|, D/|J|) plane in the absence of the external constraint for lattice coordination numbers z = 3, 4, 6.
The order parameters and corresponding response functions as well as the internal energy are calculated and
examined in detail in order to feature the real nature of phase boundaries and corresponding temperatures.
The thermal variations of the average magnetization are classified according to the Néel nomenclature. |
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