Chin. Phys. Lett.  1994, Vol. 11 Issue (2): 105-108    DOI:
Original Articles |
Effects of e-e Interaction on the CDW of MX Complex
YU Zhigang;SUN Xin
Department of Physics, Fudan University, Shanghai 200433
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YU Zhigang, SUN Xin 1994 Chin. Phys. Lett. 11 105-108
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Abstract We have considered the effects of Hubbard repulsion on the charge-density-wave (CDW) state of halogen-bridged mixed-valence transition metal complex (MX complex) within mean field theory (MFT), and taken electron correlation into account by second-order perturbation relative to the mean field state. It is seen correlation reduces the dimerization and narrows the band gap further compared with MFT.
Keywords: 71.45.Lr      71.38.+i     
Published: 01 February 1994
PACS:  71.45.Lr (Charge-density-wave systems)  
  71.38.+i  
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https://cpl.iphy.ac.cn/       OR      https://cpl.iphy.ac.cn/Y1994/V11/I2/0105
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SUN Xin
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