Monte Carlo Evidence of Finite-Temperature Chiral Ordering in a Three-Dimensional XY Spin Glass
Monte Carlo Evidence of Finite-Temperature Chiral Ordering in a Three-Dimensional XY Spin Glass
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三维 XY 自旋玻璃中有限温度手性排序的蒙特卡罗证据
DOI：
10.1143/jpsj.61.3062
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发表时间：
1992
影响因子：
1.7
通讯作者：
H. Kawamura
中科院分区：
文献类型：
--
作者：
H. Kawamura
用Monte Carlo方法研究了最近邻± JXY（平面旋转体）自旋玻璃的三维结构，着重研究了它的手征有序性.晶体尺寸标度分析表明，手性玻璃化转变发生在有限温度下，相关指数ν c =1.5±0.3，η c =-0.4 0. 2，而传统的自旋玻璃有序化只发生在零温度下。所得手征玻璃指数与三维伊辛自旋玻璃的自旋玻璃指数接近。
The nearest-neighbor ± J X Y (plane rotator) spin glass in three dimensions is studied by means of a Monte Carlo simulation, with a focus on its chiral ordering. Finite-size scaling analysis indicates that the chiral-glass transition takes place at a finite temperature with the associated exponents ν c =1.5±0.3 and η c =-0.4±0.2, whereas the conventional spin-glass ordering occurs only at zero temperature. The obtained chiral-glass exponents are close to the spin-glass exponents of a three-dimensional Ising spin glass.