Metal-insulator transition in an one-dimensional extended Hubbard model at quarter filling

@article{Ding2016MetalinsulatorTI,
  title={Metal-insulator transition in an one-dimensional extended Hubbard model at quarter filling},
  author={H. Ding and J. Zhang},
  journal={Chinese Journal of Physics},
  year={2016},
  volume={54},
  pages={237-243}
}
  • H. Ding, J. Zhang
  • Published 2016
  • Physics
  • Chinese Journal of Physics
  • Abstract Using the g-ology technique, we analytically study an one-dimensional quarter-filled extended Hubbard model incorporating the most general charge ( V ) and spin (J) interactions in the weak-coupling regime. With the charge-spin separation hypothesis, the calculation of charge stiffness parameter and renormalization-group analysis predict the occurrence of metal-insulator transition and spin-gap transition, respectively. The correlation functions at large distances are used to determine… CONTINUE READING
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