摘要翻译:
用一种对面心立方(fcc)晶格的Creutz元胞自动机(CCA)改进的元胞自动机(CA)算法模拟了自旋1 Ising(BEG)模型。fcc BEG模型的基态图($K$,$D$)具有铁磁($F$)、四极($Q$)和交错四极($SQ$)有序区。在交错四极区对参数值在$-24\leqd=d/j<0$和$-3\leqk=k/j\leq0$之间进行了模拟。通过$k=-3$和$d=-4$线分别获得了($kT_{C}/j$,$d$)和($kT_{C}/j$,$k$)平面上的相图。交错四极有序区分为五个有序区($A_3}B(a)$,$A_3}B(f)$,$AB$(I型),$AB$(II型)和$AB_3}(f)$),它们具有不同化学计量比的Cu-Au型结构。
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英文标题:
《Cu-Au type orderings in the staggered quadrupolar region of the fcc
Blume Emery Griffiths model》
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作者:
A.Ozkan, B.Kutlu
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最新提交年份:
2008
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分类信息:
一级分类:Physics 物理学
二级分类:Statistical Mechanics 统计力学
分类描述:Phase transitions, thermodynamics, field theory, non-equilibrium phenomena, renormalization group and scaling, integrable models, turbulence
相变,热力学,场论,非平衡现象,重整化群和标度,可积模型,湍流
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英文摘要:
The spin-1 Ising (BEG) model has been simulated using a cellular automaton (CA) algorithm improved from the Creutz cellular automaton (CCA) for a face-centered cubic (fcc) lattice. The ground state diagram ($k$, $d$) of the fcc BEG model has ferromagnetic ($F$), quadrupolar ($Q$) and staggered quadrupolar ($SQ$) ordering regions. The simulations have been made in the staggered quadrupolar region for the parameter values in the intervals $ -24\leq d=D/J<0$ and $-3\leq k=K/J\leq 0$ . The phase diagrams on the ($ kT_{C}/J$, $d$) and the ($kT_{C}/J$, $k$) planes have been obtained through $ k=-3$ and $d=-4$ lines, respectively. The staggered quadrupolar ordering region separates into five ordering regions ($A_{3}B(a)$, $A_{3}B(f)$, $AB$ (type-I), $AB$(type-II) and $AB_{3}(f)$) which have the different stoichiometric Cu-Au type structures.
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PDF链接:
https://arxiv.org/pdf/710.0529


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