Thermal activation of magnetization in Pr2Fe14B ribbons
文献类型：期刊论文
| 作者 | Li, ZB ; Shen, BG ; Niu, E ; Liu, RM ; Zhang, M ; Sun, JR |
| 刊名 | CHINESE PHYSICS B
 |
| 出版日期 | 2013 |
| 卷号 | 22期号:11 |
| 关键词 | thermal activation magnetization reversal fluctuation field aftereffect field |
| ISSN号 | 1674-1056 |
| 通讯作者 | Shen, BG (reprint author), Chinese Acad Sci, Inst Phys, State Key Lab Magnetism, Beijing 100190, Peoples R China. |
| 中文摘要 | The aftereffect field of thermal activation, which corresponds to the fluctuation field of a domain wall, is investigated via specific measurements of the magnetization behavior in Pr2Fe14B nanocrystalline magnets. The thermal activation is a magnetization reversal arising from thermal fluctuation over an energy barrier to an equilibrate state. According to the magnetic viscosity and the field sweep rate dependence of the coercivity, the calculated values of the fluctuation field are lower than the aftereffect field and in a range between those of domain walls and individual grains. Based on these results, we propose that the magnetization reversal occurs in multiple ways involving grain activation and domain wall activation in thermal activation, and the thermal activation decreases the coercivity by similar to 0.2 kOe in the Pr2Fe14B ribbons. |
| 资助信息 | Knowledge Innovation Project of the Chinese Academy of Sciences; National Basic Research Program of China |
| 语种 | 英语 |
| 公开日期 | 2014-01-17 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/57590]  |
| 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 | Li, ZB,Shen, BG,Niu, E,et al. Thermal activation of magnetization in Pr2Fe14B ribbons[J]. CHINESE PHYSICS B,2013,22(11). |
| APA | Li, ZB,Shen, BG,Niu, E,Liu, RM,Zhang, M,&Sun, JR.(2013).Thermal activation of magnetization in Pr2Fe14B ribbons.CHINESE PHYSICS B,22(11). |
| MLA | Li, ZB,et al."Thermal activation of magnetization in Pr2Fe14B ribbons".CHINESE PHYSICS B 22.11(2013). |
入库方式： OAI收割
来源：物理研究所
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