Softening and broadening of the zone boundary magnons in Pr0.63Sr0.37MnO3
文献类型：期刊论文
| 作者 | Hwang, HY ; Dai, P ; Cheong, SW ; Aeppli, G ; Tennant, DA ; Mook, HA |
| 刊名 | PHYSICAL REVIEW LETTERS
 |
| 出版日期 | 1998 |
| 卷号 | 80期号:6页码:1316 |
| 关键词 | HEISENBERG FERROMAGNETS EUO NEUTRON-SCATTERING SPIN DYNAMICS COLOSSAL-MAGNETORESISTANCE EXCHANGE INTERACTIONS MANGANITES WAVES |
| ISSN号 | 0031-9007 |
| 通讯作者 | Hwang, HY (reprint author), AT&T Bell Labs, Lucent Technol, 600 Mt Ave, Murray Hill, NJ 07974 USA. |
| 中文摘要 | We have studied the spin dynamics in Pr0.63Sr0.37MnO3 above and below the Curie temperature T-C = 301 K. Three distinct new features have been observed: a softening of the magnon dispersion at the zone boundary for T < T-C, significant broadening of the zone boundary magnons as T --> T-C, and no evidence for residual spin-wave-like excitations just above T-C. The results are inconsistent with double exchange models that have been successfully applied to higher T-C samples, indicating an evolution of the spin system with decreasing T-C. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2014-02-20 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/57905]  |
| 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 | Hwang, HY,Dai, P,Cheong, SW,et al. Softening and broadening of the zone boundary magnons in Pr0.63Sr0.37MnO3[J]. PHYSICAL REVIEW LETTERS,1998,80(6):1316. |
| APA | Hwang, HY,Dai, P,Cheong, SW,Aeppli, G,Tennant, DA,&Mook, HA.(1998).Softening and broadening of the zone boundary magnons in Pr0.63Sr0.37MnO3.PHYSICAL REVIEW LETTERS,80(6),1316. |
| MLA | Hwang, HY,et al."Softening and broadening of the zone boundary magnons in Pr0.63Sr0.37MnO3".PHYSICAL REVIEW LETTERS 80.6(1998):1316. |
入库方式： OAI收割
来源：物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。