| 卤素桥接混合价含金属络合物中的对角与非对角电子—晶格耦合 |
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| 引用本文： | 彭景翠.卤素桥接混合价含金属络合物中的对角与非对角电子—晶格耦合[J].湖南大学学报(自然科学版),1992,19(5). |
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| 作者姓名： | 彭景翠 |
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| 作者单位： | 湖南大学应用物理系 |
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| 摘 要： | 本文研究准一维卤素桥接混合价含过渡金属络合物(HMMC's)中的对角和非对角电子—晶格耦合.利用Green函数方法首次计算了非对角电子—晶格耦合对极化子结合能的影响.结果表明,当同时包括对角和非对角耦合时,这种物质的基态将是电荷密度波(CDW)和键序波(BOW)共存,而以前的研究者都认为在这种物质中只存在电荷密度波(CDW).
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| 关 键 词： | 电子-声子耦合 电荷密度波 键序波 格林函数 |
The Site-Diagonal and Site-off-Diagonal Electron-Lattice Coupling in Halogen-Bridged Mixed-Valence Metal Complexes |
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| Peng Jingcui.The Site-Diagonal and Site-off-Diagonal Electron-Lattice Coupling in Halogen-Bridged Mixed-Valence Metal Complexes[J].Journal of Hunan University(Naturnal Science),1992,19(5). |
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| Authors: | Peng Jingcui |
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| Institution: | Peng Jingcui Department of Applied Physics |
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| Abstract: | The site-diagonal and site-off-diagonal electron-lattice coupling in quasi-one-dimensional halogen-bridged mixed-valence metal complexes (HMMC's) are investigated. The effects of off-diagonal coupling on polaronic binding energy are firstly calculated by using Green's function. Our results show that the ground state when including the diagonal and off-diagonal coupling at the same time, is coexisting charge density wave (CDW) with bond order wave (BOW). |
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| Keywords: | electron-phonon coupling charge density wave Greens function |
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