| 电子相互作用对准一维有机铁磁体的铁磁基态的影响 |
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| 引用本文： | 郭新力,高俊山. 电子相互作用对准一维有机铁磁体的铁磁基态的影响[J]. 河北师范大学学报(自然科学版), 1999, 0(3) |
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| 作者姓名： | 郭新力 高俊山 |
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| 作者单位： | 武汉工业学院基础课部!湖北武汉430022(郭新力),华北航天工业学院!河北廊坊065000(高俊山) |
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| 摘 要： | 提出了一种基于极化子的准一维有机高聚物铁磁体模型．在这种模型中,依靠极化子而不是有机自由基来提供未配对电子．利用 Ｐｅｉｅｒｌｓ Ｈｕｂｂａｒｄ 哈密顿量,考虑强电 声耦合,允许完全的格子松驰过程,建立了一套自洽迭代方程,计算了格点上的电子相互作用和格点间的电子相互作用对有机铁磁体的铁磁基态的影响
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| 关 键 词： | 电子相互作用 有机铁磁体 电子-声子耦合 |
The Effects of Electron electron Interactions on the Ferromagnetic Ground State in Quasi 1D Organic Polaronic Ferromagnet |
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| GUO Xin li ,GAO Jun shan. The Effects of Electron electron Interactions on the Ferromagnetic Ground State in Quasi 1D Organic Polaronic Ferromagnet[J]. Journal of Hebei Normal University, 1999, 0(3) |
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| Authors: | GUO Xin li GAO Jun shan |
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| Affiliation: | GUO Xin li 1,GAO Jun shan 2 |
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| Abstract: | A peierls extended Hubbard model is used to study the effects of electron electron intaractions on the possible ferromagnetic ground state in the polaronic ferromagnet,in which the unpaired spins are derived from polarons instead of side free radicals.Considering the strong electron phonon coupling and allowing for full lattice relaxation,the system is optimized by a set of self consistent iterative equations.The results of calculation indicate that the possible ferromagnetic ground state of the system will be influenced dramatically by the on site and inter site electron electron interaction. |
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| Keywords: | electron electron interaction organic ferromagnet electron phonon coupling |
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