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arXiv 1207.0744cond-mat.stat-mechcond-mat.dis-nncond-mat.mtrl-sci
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纳米尺度表面科学与无序系统的马尔可夫链蒙特卡罗模拟

Nanometric Scale Surface science and the Markov chain Monte Carlo simulation of disordered systems

Oluwole Emmanuel Oyewande

摘要:

马尔可夫链蒙特卡罗方法作为一种研究宏观系统的统计力学方法,为科学界提供了相变理论的丰富知识和进展。虽然已经提出了一些Monte Carlo模型用于研究表面生长,但这些模型几乎没有像磁性系统模型那样被详尽地研究,其中一个范例是Ernest Ising的经典模型。特别是,在纳米尺度的表面/界面科学的相变的研究几乎是不存在的。这篇文章已经写了从表面科学的角度来激励在这个领域的统计力学的研究。在这篇文章中,我们调查的基本原理的方法,以及一些模型的无序系统,如磁性系统,材料断裂,纳米斑图形成离子轰击下,和分子手性。我们使用该方法对这些模型进行了模拟,并获得了与实验观察非常吻合的结果。

英文摘要:

The Markov chain Monte Carlo method as a statistical mechanics technique for the study of macroscopic systems has furnished the scientific community with great knowledge and advances in the theory of phase transitions. While a number of Monte Carlo models have been proposed for the study of surface growth, these models have not nearly being studied as exhaustively as in the models of magnetic systems, a paradigm of which is the classical model of Ernest Ising. In particular, studies of phase transitions in surface/interface science at nanometric scales are almost non-existent. This article has been written to motivate research in this area of statistical mechanics from the perspective of surface science. In this article we survey the rudiments of the method along with some models of disordered systems such as magnetic systems, material fracture, nano-pattern formation under ion bombardment, and molecular chirality. We performed simulations of these models using the method and obtained results that are in excellent agreement with experimental observations.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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