%0 Journal Article %T Critical Exponents for the Re-entrant Phase Transitions in the Three-Dimensional Blume--Emery--Griffiths Model on the Cellular Automaton
Critical Exponents for the Re-entrant Phase Transitions in the Three-Dimensional Blume-Emery-Grifilths Model on the Cellular Automaton %A N Seferoglu %A B Kutlu %A
N. %A Seferoglu %A B. %A Kutlu %J 中国物理快报 %D 2007 %I %X The critical behaviour of the three-dimensional Blume-Emery-Griffiths (BEG) model & investigated at D/ J = O, -0.25 and -1 in the range of-1 ≤ K/J ≤ 0 for J -- 100. The simulations are carried out on a simple cubic lattice using the heating algorithm improved from the Creutz cellular automaton (CCA ) under periodic boundary conditions. The universality of the model are obtained for re-entrant and double re-entrant phase transitions which occur at certain D/J and K/J parameters, with J and K representing the nearest-neighbour bilinear and biquadratic interactions, and D being the single-ion anisotropy parameter. The values of static critical exponents β, γ and v are estimated within the framework of the finite-size scaling theory. The results are compatible with the universal Ising critical behaviour for all continuous phase transitions in these ranges. %K 64 %K 60 %K Cn %K 64 %K 60 %K Fr
相位转移 %K 单元格式 %K 模型 %K 钢砂 %U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=E27DA92E19FE279A273627875A70D74D&aid=03664AC44D480818E822186BA50F3C1F&yid=A732AF04DDA03BB3&vid=B91E8C6D6FE990DB&iid=DF92D298D3FF1E6E&sid=2D8A2D26AFF207D2&eid=CD65D483B6C24C75&journal_id=0256-307X&journal_name=中国物理快报&referenced_num=0&reference_num=0