Mean-Field Calculations for the Three-Dimensional HolsteinModel
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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.
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