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|a eng
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|b ليبيا
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|9 444373
|a Abubrig, Fathi
|e Author
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|a Phase Transitions and Multicritical Points in the Mixed Spin - 2 and Spin - 7/2 Ising Ferrimagnetic System with Two Crystal Field Intera Ctions
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260 |
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|b الجامعة الأسمرية الإسلامية زليتن - كليتى الآداب والعلوم
|c 2016
|g يونيو
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300 |
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|a 34 - 51
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336 |
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|a بحوث ومقالات
|b Article
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520 |
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|b The critical temperatures of the mixed spin-2 and spin-7/2 Ising ferrimagnetic system with two crystal-field interactions, DA for spin-2 and DB for spin-7/2, are investigated in the absence of an external magnetic field by using the mean-field theory based on Bogoliubov inequality for the free energy. The ground-state phase diagram is constructed. The phase diagrams of the critical temperatures are obtained in the temperature-anisotropy plane and the thermal variation of the sublattice magnetizations is investigated in detail. Besides the second-order phase transition lines, two types of the first-order lines; one ending at tricritical points and the other ending at isolated critical points, are found.
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653 |
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|a درجات الحرارة
|a الطاقة الحرارية
|a المغناطيسية الجزيئية
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692 |
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|b Mixed Spin System
|b Ising Model
|b Sublattice Magnetization
|b Critical Points
|b Anisotropy
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700 |
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|9 444705
|a Gneper, Mohamed
|e Co-Author
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773 |
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|4 العلوم الإنسانية ، متعددة التخصصات
|6 Humanities, Multidisciplinary
|c 026
|l 028
|m ع28
|o 1582
|s مجلة العلوم الإنسانية والتطبيقية
|t Journal of Humanities and Applied Sciences
|v 000
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856 |
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|u 1582-000-028-026.pdf
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930 |
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|d y
|p y
|q n
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|a HumanIndex
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|c 829417
|d 829417
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