| 具有反铁磁相互作用的双铁磁链中的非线性激发 |
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| 引用本文： | 许长谭 刘富义. 具有反铁磁相互作用的双铁磁链中的非线性激发[J]. 原子与分子物理学报, 1999, 16(4): 521-526 |
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| 作者姓名： | 许长谭 刘富义 |
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| 作者单位： | [1]山东省临沂教育学院物理系 [2]山东省临沂师范专科学校物理系 |
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| 摘 要： | 采用双子格模型和相干态表示，研究了链与链之间存在反铁磁相互作用的双铁磁链系统中的非线性激发的性质，得到了孤子的宽度，能量及有效质量。结果表明在不同情况下的各向异性双铁磁链中可以激发拓扑性孤子或非拓性孤子或非拓生反孤子。
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| 关 键 词： | 双铁磁链 双子模模型 相干态 反铁磁性 |
Nonlinear excitation in two ferromagnetic chains with antiferromagnetic interaction |
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| XU Chang tan ,LIU Fu yi ,PANG Xiao feng. Nonlinear excitation in two ferromagnetic chains with antiferromagnetic interaction[J]. Journal of Atomic and Molecular Physics, 1999, 16(4): 521-526 |
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| Authors: | XU Chang tan LIU Fu yi PANG Xiao feng |
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| Affiliation: | XU Chang tan 1,LIU Fu yi 2,PANG Xiao feng 3 |
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| Abstract: | Employing the double sublattice mode and the coherent state ansatz, we study the properties of a nonlinear excitation in two ferromagnetic chains with antiferromagmetic interaction. The width, the energy and the effective mass of the soliton are given. These result show that it is possible to excite nontopological soliton or non topological reversed soliton or topological soliton or topological reversed soliton in this system under the condition of the different anisotropy. |
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| Keywords: | two FM chains double subattice mode coherent state ansatz topological soliton Non topological soliton |
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