Phase Transition of Three-Dimensional Site-Random Ising Model with Short-Range Interactions

Phase Transition of Three-Dimensional Site-Random Ising Model with Short-Range Interactions
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具有短程相互作用的三维位点随机分布模型的相变

DOI:
10.1143/jpsj.62.3007
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发表时间:
1993
影响因子:
1.7
通讯作者:
F. Matsubara
F. Matsubara
中科院分区:
物理与天体物理4区
文献类型:
--
作者:
T. Shirakura;F. Matsubara

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利用蒙特卡罗(MC)方法研究了三维短程随机Ising模型,发现在很高的温度(Tc = 2.83 J)下,该模型发生了自旋玻璃(SG)相变.从有限尺寸标度分析估计的临界指数的值是不同的3D\(\mp J\)伊辛模型和3D伊辛铁磁体。我们认为该模型中的SG相是一个新的SG相,其特征在于非零SG序参数q ≥ 0。
We study a short-range site-random Ising model in three dimensions (3D) using a Monte Carlo (MC) method and find a phase transition to a spin glass (SG) phase at a very high temperature ( T c ≃2.83 J). Values of the critical exponents estimated from a finite-size scaling analysis are different from those in both the 3D\(\mp J\) Ising model and the 3D Ising ferromagnet. We suggest that the SG phase in this model is a new SG phase which is characterized by a nonzero SG order parameter q ≠0.
T.Shirakura:“三维±J伊辛模型的强普遍性的崩溃”(1992)
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