Spin-phonon renormalization of the excitation energy in a diluted two-dimensional ferromagnet
文献类型：期刊论文
| 作者 | G. Xiong ; X. B. Wang ; Z. H. Zhang ; D. C. Tian |
| 刊名 | Communications in Theoretical Physics
 |
| 出版日期 | 1999 |
| 卷号 | 32期号:3页码:345-350 |
| 关键词 | diluted two-dimensional ferromagnet phonon self-energy magnetic excitations medium approximation fractal networks low-temperatures normal-state tc superconductors resistivity scattering electrons |
| ISSN号 | 0253-6102 |
| 中文摘要 | The contribution of spin-lattice coupling to the phonon self-energy is calculated for a diluted two-dimensional "soft" ferromagnet. The calculations are based on a bond percolation model. Numerical results are presented for the dampings of phonon excitations. At low temperature, the damping rate is much smaller than the frequency of excitations, leading to well-defined phonons. The overall features of the Gamma(q) curves possess similar characteristics: Gamma(q) has two maximum points at qa approximate to 0.5 and qa approximate to 1.7, the value of the latter is much larger than the former. The temperature-dependent phonon line widths arising from spin-lattice coupling are also presented. We point out the sensitivity of the interaction on bond concentration of the network. |
| 原文出处 | |
| 公开日期 | 2012-04-14 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/37540]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | G. Xiong,X. B. Wang,Z. H. Zhang,et al. Spin-phonon renormalization of the excitation energy in a diluted two-dimensional ferromagnet[J]. Communications in Theoretical Physics,1999,32(3):345-350. |
| APA | G. Xiong,X. B. Wang,Z. H. Zhang,&D. C. Tian.(1999).Spin-phonon renormalization of the excitation energy in a diluted two-dimensional ferromagnet.Communications in Theoretical Physics,32(3),345-350. |
| MLA | G. Xiong,et al."Spin-phonon renormalization of the excitation energy in a diluted two-dimensional ferromagnet".Communications in Theoretical Physics 32.3(1999):345-350. |
入库方式： OAI收割
来源：金属研究所
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