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...
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| Date: | 2018 |
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| Main Authors: | , , , , |
| Format: | Article |
| Language: | English |
| Published: |
Інститут фізики конденсованих систем НАН України
2018
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| Series: | Condensed Matter Physics |
| Online Access: | https://nasplib.isofts.kiev.ua/handle/123456789/157044 |
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| Journal Title: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Cite this: | 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. |
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Digital Library of Periodicals of National Academy of Sciences of Ukraine| Summary: | 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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