Magnon damping by magnon-phonon coupling in manganese perovskites
文献类型：期刊论文
| 作者 | Dai, PC ; Hwang, HY ; Zhang, JD ; Fernandez-Baca, JA ; Cheong, SW ; Kloc, C ; Tomioka, Y ; Tokura, Y |
| 刊名 | PHYSICAL REVIEW B
 |
| 出版日期 | 2000 |
| 卷号 | 61期号:14页码:9553 |
| 关键词 | DOUBLE-EXCHANGE COLOSSAL-MAGNETORESISTANCE METALLIC FERROMAGNET SPIN DYNAMICS MANGANITES LA1-XSRXMNO3 MODEL WAVES ZONE |
| ISSN号 | 1098-0121 |
| 通讯作者 | Dai, PC (reprint author), Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. |
| 中文摘要 | Inelastic neutron scattering was used to systematically investigate the spin-wave excitations (magnons) in ferromagnetic manganese perovskites. In spite of the large differences in the Curie temperatures (Tc's) of different manganites, their low-temperature spin waves have very similar dispersions with the zone-boundary magnon softening and broadening that cannot be explained by the canonical double exchange mechanism. From the wave-vector dependence of the magnon lifetime effects and its correlation with the dispersions of the optical-phonon modes, we argue that a strong magnetoelastic (magnon-phonon) coupling is responsible for the observed low-temperature anomalous spin dynamical behavior of the manganites. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2014-02-20 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/57894]  |
| 专题 | 物理研究所_所内人员在其他单位发表论文题录信息_所内人员在其他单位发表论文题录信息_期刊论文 |
| 推荐引用方式 GB/T 7714 | Dai, PC,Hwang, HY,Zhang, JD,et al. Magnon damping by magnon-phonon coupling in manganese perovskites[J]. PHYSICAL REVIEW B,2000,61(14):9553. |
| APA | Dai, PC.,Hwang, HY.,Zhang, JD.,Fernandez-Baca, JA.,Cheong, SW.,...&Tokura, Y.(2000).Magnon damping by magnon-phonon coupling in manganese perovskites.PHYSICAL REVIEW B,61(14),9553. |
| MLA | Dai, PC,et al."Magnon damping by magnon-phonon coupling in manganese perovskites".PHYSICAL REVIEW B 61.14(2000):9553. |
入库方式： OAI收割
来源：物理研究所
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