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摘要
The doping-induced spectral weight transfer is studied by using the d-p model and considering spatial fluctuations in the high-T-c cuprates. The results led by the Cu-0 interaction are found as follows: (i) the energy levels are grown inside the charge-transfer gap, (ii) the spectral weight is decreased below E-F, and (iii) the d holes at Cu-sites in CuO2 planes are delocalized with hole doping. Both metal-insulator transition and electrons of two states are also discussed.
- 出版日期2003-9
