SPECTRAL-WEIGHT TRANSFER IN EFFECTIVE SINGLE-BAND MODELS FOR THE HIGH-T(C) CUPRATES

被引：24

作者：

FEINER, LF

机构：

[1] Philips Research Laboratories, 5656 AA Eindhoven

来源：

PHYSICAL REVIEW B | 1993年 / 48卷 / 22期

关键词：

D O I：

10.1103/PhysRevB.48.16857

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The low-energy physics of the Emery model, representing the high-T(c) cuprates, can be understood by separating intracell interference within CuO4 cells from intercell correlations described by an effective single-band Hubbard model. This decomposition explains the anomalous transfer of spectral intensity from the high- to the low-energy scale, the asymmetry between electron and hole doping, and the breakdown of low-energy sum rules. These features are related to the existence of an antibound charge transfer exciton band, and are very sensitive to the strength of the Coulomb repulsion U(d).

引用

页码：16857 / 16860

页数：4

共 22 条

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