Mean—Field Calculations for the Three—Dimensional Holstein Model |
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引用本文: | 罗强,刘川.Mean—Field Calculations for the Three—Dimensional Holstein Model[J].中国物理快报,2002,19(8):1184-1186. |
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作者姓名: | 罗强 刘川 |
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作者单位: | SchoolofPhysics,PekingUniversity,Beijing100871 |
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摘 要: | 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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关 键 词: | 合金 高温超导体 平均场计算 Holstein模型 |
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