| Effect of inter-site electron-electron interaction on the spin-wave excitation in quasi-one-dimensional organic magnetic polymer |
| L. Zhao; K. L. Yao
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| 2000
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| 发表期刊 | Journal of Physics-Condensed Matter
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| ISSN | 0953-8984
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| 卷号 | 12期号:26页码:5735-5743 |
| 摘要 | Considering the inter-site electron-electron interaction, we investigate the ground state and spin-wave excitation of a theoretical model proposed for quasi-one-dimensional pi-conjugated organic polymer ferromagnets. Within mean-field theory, the ground state of the system is shown to be a high-spin ferromagnetic state due to the topological structure of the system. By employing the random-phase approximation (RPA), the spin-wave excitation spectrum is obtained. It is found that the acoustic spin-wave mode displays the feature of the ferromagnetic magnon, and the inter-sire electron-electron interaction has influence on it. With the increase of inter-site electron-electron interaction, the high-spin ferromagnetic ground state of the system will be unstable. |
| 部门归属 | huazhong univ sci & technol, dept phys, wuhan 430074, peoples r china. acad sinica, int ctr mat phys, shenyang 110015, peoples r china. ccast, world lab, beijing 100080, peoples r china.;zhao, l (reprint author), huazhong univ sci & technol, dept phys, wuhan 430074, peoples r china
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| 关键词 | Hubbard-model
Ferromagnet
Polyacetylene
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| URL | 查看原文
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| WOS记录号 | WOS:000088232300023
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| 引用统计 |
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| 文献类型 | 期刊论文
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| 条目标识符 | http://ir.imr.ac.cn/handle/321006/37267
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| 专题 | 中国科学院金属研究所
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推荐引用方式
GB/T 7714 |
L. Zhao,K. L. Yao. Effect of inter-site electron-electron interaction on the spin-wave excitation in quasi-one-dimensional organic magnetic polymer[J]. Journal of Physics-Condensed Matter,2000,12(26):5735-5743.
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| APA |
L. Zhao,&K. L. Yao.(2000).Effect of inter-site electron-electron interaction on the spin-wave excitation in quasi-one-dimensional organic magnetic polymer.Journal of Physics-Condensed Matter,12(26),5735-5743.
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| MLA |
L. Zhao,et al."Effect of inter-site electron-electron interaction on the spin-wave excitation in quasi-one-dimensional organic magnetic polymer".Journal of Physics-Condensed Matter 12.26(2000):5735-5743.
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