Short-range correlations in disordered systems: nonlocal coherent-potential approximation
Short-range correlations in disordered systems: nonlocal coherent-potential approximation
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DOI：
10.1088/0034-4885/72/8/086501
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发表时间：
2009-07
影响因子：
18.1
通讯作者：
D. Rowlands
中科院分区：
文献类型：
--
作者：
D. Rowlands
最近取得了进展，在有效介质的方法来描述替代无序系统，通过非局域相干势近似（NLCPA）的发展。NLCPA概括了广泛使用的CPA方法，并能够包括CPA忽略的重要环境影响的描述。作为一个目前正在发展的领域，具有很大的潜在的未来应用，这篇评论的目的是澄清现有的理论与其他已知的方法，使用简单的模型和第一原理计算的想法。除了展示吸引人的方面的理论，这篇评论也旨在突出需要解决的理论问题。
Progress has recently been made within the effective medium approach to describing substitutionally disordered systems through the development of the nonlocal coherent-potential approximation (NLCPA). The NLCPA generalizes the widely used CPA approach and is capable of including a description of important environmental effects neglected by the CPA. As a currently developing field with much potential future application, the aim of this review is to clarify the ideas underlying the existing theory in relation to other known methods using both simple models and first-principles calculations. In addition to demonstrating the appealing aspects of the theory, this review also aims to highlight the theoretical issues which need to be addressed.