| Energy bands, spin density and dimerization in organic ferromagnets |
| W. Z. Wang; K. L. Yao
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| 1998
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| 发表期刊 | Physica B-Condensed Matter
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| ISSN | 0921-4526
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| 卷号 | 252期号:1-2页码:55-62 |
| 摘要 | We carry out numerical studies based on our theoretical model with interchain interaction in a quasi-one-dimensional organic ferromagnet, Considering the topology of the system, we propose an interchain coupling which alternates in size and in sign along each chain, We study the splitting of energy levels with respect to different chains and examine ferromagnetic order and dimerization as a function of the coupling strength. II is shown that at a critical value of the coupling, the energy gap and dimerization disappear. In this case, spin density wave (SDW) is changed dramatically and spin density at each site along each chain has the same sign and alternating size. The oscillatory part of interchain coupling reduces the dimerization and the amplitude of SDW. The interchain coupling destabilizes the ferromagnetic state of the system. (C) 1998 Elsevier Science B.V. All rights reserved. |
| 部门归属 | huazhong univ sci & technol, dept phys, wuhan 430074, peoples r china. ccast, world lab, beijing 100080, peoples r china. acad sinica, int ctr mat phys, shenyang 110015, peoples r china.;wang, wz (reprint author), huazhong univ sci & technol, dept phys, wuhan 430074, peoples r china
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| 关键词 | Energy Bands
Spin Density
Dimerization
Organic Ferromagnets
Polyacetylene
Polymers
Solitons
Model
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| URL | 查看原文
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| WOS记录号 | WOS:000075161600007
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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/321006/37811
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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 |
W. Z. Wang,K. L. Yao. Energy bands, spin density and dimerization in organic ferromagnets[J]. Physica B-Condensed Matter,1998,252(1-2):55-62.
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| APA |
W. Z. Wang,&K. L. Yao.(1998).Energy bands, spin density and dimerization in organic ferromagnets.Physica B-Condensed Matter,252(1-2),55-62.
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| MLA |
W. Z. Wang,et al."Energy bands, spin density and dimerization in organic ferromagnets".Physica B-Condensed Matter 252.1-2(1998):55-62.
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