| 反绝热近似下金属络合物链的二聚化行为 |
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| 引用本文： | 王治国,牛建立.反绝热近似下金属络合物链的二聚化行为[J].周口师范学院学报,2001,18(2):1-6. |
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| 作者姓名： | 王治国 牛建立 |
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| 作者单位： | 1. 同济大学物理系,
2. 河南职工医学院, |
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| 基金项目： | Supported by the NSF of
China (19725414) |
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| 摘 要： | 运用玻色化方法研究了一维半充满状态的金属络合物的基态和激发态在反绝热近似下的临界性质.结果表明在反绝热情况下系统的基态是电荷密度波相，其电荷密度波相的强度随电声耦合参量的变化而变化.同时也讨论了系统二聚化序参量的变化规律.
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| 关 键 词： | 金属络合物链 玻色化 二聚化序参量 |
| 文章编号： | 1008-1261(2001)02-0001-06 |
| 修稿时间： | 2000年11月10 |
Dimerized Properties of MX
Chain in Anti-adiabatic Limit |
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| WANG Zhi-guo,NIU Jian-li.Dimerized Properties of MX
Chain in Anti-adiabatic Limit[J].Journal of Zhoukou Normal University,2001,18(2):1-6. |
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| Authors: | WANG Zhi-guo NIU Jian-li |
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| Abstract: | The one-dimensional halogen-brideged mixed-valence transition-metal linear-chain complexes (MX chain) with half-filled-band electrons are studied.The ground state and excited state of the model are calculated within continuum fermi field theory for electrons and the anti-adiabatic approximation for phonons.By using bosonization method and Gaussian wave functional technique,the energy density of the ground state and the renormalized mass of the model are obtained.The results show that the ground state is charge density wave phase in anti-adiabatic limit.The strength of charge density wave phase changes with varying of the parameters of the model.Finally,the dimerized order parameter of the model is discussed. |
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| Keywords: | MX chain bosonization dimerized order parameter |
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