| Original Articles |
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Mean-Field Calculations for the Three-Dimensional Holstein
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| 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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| Cite this article: |
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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.
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| Keywords:
75.10.Jm
71.10.Fd
71.10.Li
74.20.Mn
74.72.-h
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Published: 01 August 2002
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| PACS: |
75.10.Jm
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(Quantized spin models, including quantum spin frustration)
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71.10.Fd
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(Lattice fermion models (Hubbard model, etc.))
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71.10.Li
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(Excited states and pairing interactions in model systems)
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74.20.Mn
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(Nonconventional mechanisms)
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74.72.-h
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(Cuprate superconductors)
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