论文标题
在有限温度下的三维库仑玻璃和低疾病中的充电排序
Charge ordering in the three-dimensional Coulomb glass at finite temperatures and low disorders
论文作者
论文摘要
在本文中，我们使用蒙特卡洛模拟在半填充时研究了三维库仑玻璃晶格模型。该系统的退火显示了从顺磁性和零疾病的二阶过渡。我们还使用有限的尺寸缩放方法计算了关键指数和过渡温度。使用大都市算法进行蒙特卡洛模拟，这使我们能够研究较大的晶格尺寸。零疾病的过渡温度和临界指数与先前的研究相匹配数值误差。我们发现，随着疾病的增加，系统的过渡温度降低。关键指数$α$和$γ$的值比相应的零疾病值少$ν$。大型系统尺寸的使用导致了与该疾病的关键指数的正确变化。
In this paper, we have studied the three dimensional Coulomb glass lattice model at half-filling using Monte Carlo Simulations. Annealing of the system shows a second-order transition from paramagnetic to charge-ordered phase for zero as well as small disorders. We have also calculated the critical exponents and transition temperature using a finite sizing scaling approach. The Monte Carlo simulation is done using the Metropolis algorithm, which allowed us to study larger lattice sizes. The transition temperature and the critical exponents at zero disorder matched the previous studies within numerical error. We found that the transition temperature of the system decreased as the disorder is increased. The values of critical exponents $α$ and $γ$ were less and value of $ν$ more than the corresponding zero disorder values. The use of large system sizes led to the correct variation of critical exponents with the disorder.
