Effects of e-e Interaction on the CDW of MX Complex

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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