Effects of magnetic impurities in the t-J model
文献类型：期刊论文
| 作者 | Hu, ZN ; Pu, FC |
| 刊名 | JOURNAL OF PHYSICS A-MATHEMATICAL AND GENERAL
 |
| 出版日期 | 1999 |
| 卷号 | 32期号:29页码:5435 |
| 关键词 | DIMENSIONAL ELECTRON-GAS OPEN-BOUNDARY-CONDITIONS FINITE-SIZE CORRECTIONS HEAVY-FERMION SYSTEMS HEISENBERG CHAIN LUTTINGER LIQUID KONDO PROBLEM BETHE-ANSATZ QUANTUM GROUPS HUBBARD CHAIN |
| ISSN号 | 0305-4470 |
| 通讯作者 | Hu, ZN: Chinese Acad Sci, Inst Phys, POB 603, Beijing 100080, Peoples R China. |
| 中文摘要 | Three Fe-rich SmCo5Fex (x = 0, 1 and 2) ribbons were prepared directly by melt spinning using a wheel speed of 25 m s(-1). The x = 2 ribbons possessed the best hard-magnetic properties, intrinsic coericivity 8.2 kOe, saturation magnetization 117.72 emu g(-1), and maximum energy product 16.06 MGOe. The microstructures were investigated by transmission electron microscopy. The x = 0 ribbons showed striated grains with varied compositions, such as SmCo5, SmCo3, Sm54Co46, etc. In contrast, the x = 1 and 2 ribbons showed cellular microstructures. However, the boundary phases were found to be different, Sm(Co,Fe), for the x = 1 ribbons and both Sm(Co,Fe)(3) and Sm-2(Co,Fe)(7) for the x = 2 ribbons. The correlation between magnetic properties and microstructures is discussed in detail. The coercivity mechanism is explained according to the temperature dependence of coercivity by the nucleation model. In turn, the dependence of the small microstructure parameters alpha(k) and N-eff on intergrain exchange coupling were analysed in nanoscale grains of SmCo5Fe2 ribbons. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2013-09-17 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/36764]  |
| 专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
| 推荐引用方式 GB/T 7714 | Hu, ZN,Pu, FC. Effects of magnetic impurities in the t-J model[J]. JOURNAL OF PHYSICS A-MATHEMATICAL AND GENERAL,1999,32(29):5435. |
| APA | Hu, ZN,&Pu, FC.(1999).Effects of magnetic impurities in the t-J model.JOURNAL OF PHYSICS A-MATHEMATICAL AND GENERAL,32(29),5435. |
| MLA | Hu, ZN,et al."Effects of magnetic impurities in the t-J model".JOURNAL OF PHYSICS A-MATHEMATICAL AND GENERAL 32.29(1999):5435. |
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。