کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
979424 | 933348 | 2008 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Phase diagram of the two-dimensional ferromagnetic three-color Ashkin-Teller model
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
ریاضیات
فیزیک ریاضی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Phase diagram of the two-dimensional ferromagnetic three-color Ashkin-Teller model Phase diagram of the two-dimensional ferromagnetic three-color Ashkin-Teller model](/preview/png/979424.png)
چکیده انگلیسی
In the present work we study the critical properties of the ferromagnetic three-color Ashkin-Teller model (3AT) by means of a Migdal-Kadanoff renormalization group approach on a diamond-like hierarchical lattice. The analysis of the fixed points and flux diagram of the recursion relations is used to determine the corresponding phase diagram (including its symmetry properties) and critical exponents. Our numerical results show the presence of four universality classes, three of them are associated to the Potts model with q=2, 4 and 6 states. Finally, a connection between our findings and some known results from the literature is presented.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica A: Statistical Mechanics and its Applications - Volume 387, Issue 7, 1 March 2008, Pages 1538-1544
Journal: Physica A: Statistical Mechanics and its Applications - Volume 387, Issue 7, 1 March 2008, Pages 1538-1544
نویسندگان
F.A.P. Piolho, F.A. da Costa, C.G. Bezerra, A.M. Mariz,