Chin. Phys. Lett.  2002, Vol. 19 Issue (8): 1184-1186    DOI:
Original Articles |
Mean-Field Calculations for the Three-Dimensional Holstein Model
LUO Qiang1,2;LIU Chuan1
1School of Physics, Peking University, Beijing 100871 2State Key Laboratory for Mesoscopic Physics, Peking University, Beijing 100871
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LUO Qiang, LIU Chuan 2002 Chin. Phys. Lett. 19 1184-1186
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Abstract The electron-phonon Holstein model is studied in three spatial
dimensions. It is argued that this model can be used to account for major features of the high-Tc BaPb1-xBixO3 and BaxK1-xBiO3 systems. Mean-field calculations are performed via a path integral representation of the model. Charge-density-wave order parameters and transition temperatures are obtained.
Keywords: 75.10.Jm      71.10.Fd      71.10.Li      74.20.Mn      74.72.-h     
Published: 01 August 2002
PACS:  75.10.Jm (Quantized spin models, including quantum spin frustration)  
  71.10.Fd (Lattice fermion models (Hubbard model, etc.))  
  71.10.Li (Excited states and pairing interactions in model systems)  
  74.20.Mn (Nonconventional mechanisms)  
  74.72.-h (Cuprate superconductors)  
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https://cpl.iphy.ac.cn/       OR      https://cpl.iphy.ac.cn/Y2002/V19/I8/01184
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