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arXiv 2008.07033cond-mat.str-el
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对“高Tc铜酸盐模型中Cu-3d多重态结构的相关性”一文的评论

Comment on "Relevance of Cu-3d multiplet structure in models of high Tc cuprates''

A. A. Aligia

摘要:

在最近的工作[M。Jiang,M.,中国古猿科昆虫Moeller,M. Berciu和G. A. Sawatzky,Phys. Rev. B \textbf{101},035151(2020)]中,作者求解了在O-2 p带中具有Cu杂质的模型,作为空穴掺杂的铜酸盐的局部电子结构的近似。他们的结论之一是基态与Zhang-Rice单线态(ZRS)只有$\sim 50$ \%的重叠。这种说法是基于ZRS的定义在不同的表示,其中在Cu网站的电荷波动已被消除的正则变换。基于已知的多带模型(包括Cu的3d $^8$和3d $^{10}$构型)的低能约化程序,对结果的正确解释表明,这种重叠接近94%.

英文摘要:

In a recent work [M. Jiang, M. Moeller, M. Berciu, and G. A. Sawatzky, Phys. Rev. B \textbf{101}, 035151 (2020)], the authors solved a model with a Cu impurity in an O-2p band as an approximation to the local electronic structure of a hole doped cuprate. One of their conclusions is that the ground-state has only $\sim 50$ \% overlap with a Zhang-Rice singlet (ZRS). This claim is based on the definition of the ZRS in a different representation, in which the charge fluctuations at the Cu site have been eliminated by a canonical transformation. The correct interpretation of the results, based on known low-energy reduction procedures for a multiband model including 3d$^8$ and 3d$^{10}$ configurations of Cu, indicates that this overlap is near 94 \%.

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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