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Doping-Induced Spectral Weight Transfer with d-p Interaction |
| CAO Tian-De;LI Chuan-Qi;ZHAO De-Lin;CHENG Guo-Sheng;GUO Sheng-Li |
| Department of Physics, Nanjing Institute of Meteorology, Nanjing 210044 |
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| Cite this article: |
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CAO Tian-De, LI Chuan-Qi, ZHAO De-Lin et al 2003 Chin. Phys. Lett. 20 1565-1567 |
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Abstract The doping-induced spectral weight transfer is studied by using the d-p model and considering spatial fluctuations in the high-Tc cuprates. The results leaded by the Cu-O interaction are found as follows: (i) the energy levels are grown inside the charge-transfer gap, (ii) the spectral weight is decreased below EF, 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.
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| Keywords:
71.10.-w
74.20.-z
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Published: 01 September 2003
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| PACS: |
71.10.-w
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(Theories and models of many-electron systems)
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74.20.-z
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(Theories and models of superconducting state)
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