کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8943554 | 1645163 | 2019 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Multicritical phase diagram of the three-dimensional Ashkin-Teller model including metastable and unstable phases
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک ماده چگال
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![عکس صفحه اول مقاله: Multicritical phase diagram of the three-dimensional Ashkin-Teller model including metastable and unstable phases Multicritical phase diagram of the three-dimensional Ashkin-Teller model including metastable and unstable phases](/preview/png/8943554.png)
چکیده انگلیسی
The mean field approximation from the Bogoliubov inequality is applied to study the ferromagnetic Ashkin-Teller model in three dimensions. Phase transitions for the stable, metastable and unstable states is observed. From the critical values in the free energy of the model, those transitions are classified. Besides the free energy, magnetization, critical frontiers and tricritical points are obtained. Phase diagram is presented for a better illustration of the phase transitions and its order.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Magnetism and Magnetic Materials - Volume 469, 1 January 2019, Pages 35-39
Journal: Journal of Magnetism and Magnetic Materials - Volume 469, 1 January 2019, Pages 35-39
نویسندگان
J.P. Santos, J.A.J. Avila, D.S. Rosa, R.M. Francisco,