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arXiv 2403.09019cond-mat.str-el
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通过完备多极矩表示统一描述电子有序与交叉关联

Unified description of electronic orderings and cross correlations by complete multipole representation

Satoru Hayami, Hiroaki Kusunose

AI总结:

本文综述利用具有不同时空反演对称性的电、磁及电/磁环形多极矩完备表示,统一描述固体电子有序、能带形变、交叉关联与输运性质,并通过实例说明活性多极矩识别。

摘要:

我们综述了凝聚态物理中基于一整套多极矩表示(电多极矩、磁多极矩、电环形多极矩和磁环形多极矩)的电子有序及相关交叉关联的最新进展,这些多极矩具有不同的时空反演对称性。借助在包括原子和团簇自由度在内的任何物理希尔伯特空间中采用的、与对称性相适配的完备基组,该方法为固体中的电子有序、能带结构形变、交叉关联和输运性质提供了统一描述。我们回顾指出,多极矩表示是一种强有力的工具,可用于全面理解材料中观测到的各种电子性质和物理现象。我们还通过若干实例展示了如何在真实材料中识别活性多极矩和预期的物理现象。本综述将为未来观测和识别未知电子相及其相关物理现象的研究奠定坚实基础。

英文摘要:

We overview recent developments of electronic orderings and associated cross correlations in condensed matter physics based on a complete set of multipole representations (electric, magnetic, electric toroidal, and magnetic toroidal multipoles) with distinct space-time inversion symmetries. By means of the symmetry-adapted complete basis set in any physical Hilbert space including atomic and cluster degrees of freedom, it provides a unified description of electronic orderings, deformations of band structures, cross correlations, and transport properties in solids. We review that a multipole representation is a powerful tool to attain a comprehensive understanding of various electronic properties and physical phenomena observed in materials. We also demonstrate how to identify active multipoles and expected physical phenomena in real materials with several examples. Our review would serve as a solid foundation for future studies toward observations and identifications of unknown electronic phases and their related physical phenomena.

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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