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DOMAIN KINETICS SIMULATIONS IN 3D ISING MODEL

机译:3D ising模型中的域动力学模拟

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In this work we extend our previous simulations to study the magnetization processes and the effect of temperature on the domain kinetics. We have carried out extensive Monte Carlo simulations with different simple cubic lattice samples of size 20×20×20. If the simulation is allowed to come to equilibrium at high temperature and then thermally quenched by reducing T to well below T{sub}c, domains are frequently formed. In zero field, such domains may persist or may vanish with time. In general, the results obtained show that small closed shapes are not stable, but structures involving lamellae or rectangular prisms of one sign of spins average embedded in a matrix of the opposite spin are stable indefinitely at sufficiently low temperatures.
机译:在这项工作中,我们将先前的模拟扩展以研究磁化过程和温度对域动力学的影响。我们已经进行了广泛的Monte Carlo模拟,具有不同的简单立方晶格样品的大小为20×20×20。如果允许模拟在高温下达平衡,然后通过在低于T {Sub} C中通过降低T阱热淬灭,经常形成域。在零场中,这种域可能持续或可能随时间消失。通常,获得的结果表明,小闭合形状不稳定,但涉及嵌入相对旋转基质的旋转平均迹象的薄片或矩形棱镜的结构在足够低的温度下无限稳定。

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