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arXiv 1306.0032cond-mat.str-el
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最大局部化过程中的对称适应Wannier函数

Symmetry-adapted Wannier functions in the maximal localization procedure

R. Sakuma

摘要:

给出了在最大局部化Wannier函数方法[Marzari和Vanderbilt,Phys. Rev. \textbf{56},12847(1997); Souza,Marzari和Vanderbilt,\textit{ibid.} \textbf{65},035109(2001)]的框架中构造自适应Wannier函数的过程。在该方案中,Wannier函数的扩展泛函的最小化是在来自用于构造它们的Wannier函数和Bloch函数的指定集合的对称性质的约束下进行的,因此可以获得不一定产生扩展泛函的全局最小值的解。作为这种方法的测试,GaAs和Cu的原子中心Wannier函数的结果。

英文摘要:

A procedure to construct symmetry-adapted Wannier functions in the framework of the maximally-localized Wannier function approach[Marzari and Vanderbilt, Phys. Rev. B \textbf{56}, 12847 (1997); Souza, Marzari, and Vanderbilt, \textit{ibid.} \textbf{65}, 035109 (2001)] is presented. In this scheme the minimization of the spread functional of the Wannier functions is performed with constraints that are derived from symmetry properties of the specified set of the Wannier functions and the Bloch functions used to construct them, therefore one can obtain a solution that does not necessarily yield the global minimum of the spread functional. As a test of this approach, results of atom-centered Wannier functions for GaAs and Cu are presented.

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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