Investigation of intergrain exchange coupling interaction of nanocrystalline permanent magnets by numerical simulation
文献类型：期刊论文
| 作者 | Rong, CB ; Zhang, HW ; Chen, RJ ; He, SL ; Zhang, SY ; Shen, BG |
| 刊名 | ACTA PHYSICA SINICA
 |
| 出版日期 | 2004 |
| 卷号 | 53期号:12页码:4353 |
| 关键词 | FINITE-ELEMENT-METHOD COERCIVITY MECHANISM MAGNETIZATION BEHAVIOR RIBBONS NUCLEATION PARTICLES PR8FE87B5 PR2FE14B |
| ISSN号 | 1000-3290 |
| 通讯作者 | Rong, CB: Chinese Acad Sci, Inst Phys, State Key Lab Magnetism, POB 603, Beijing 100080, Peoples R China. |
| 中文摘要 | The initial curves, demagnetization curves and recoil curves of Pr-2 Fe-14 B and Pr-2 Fe-14 B/alpha-Fe nanocrystalline permanent magnets have been calculated by micromagnetic finite-element method. The validity of delta m ( H) curves, which can be used to determine the strength of intergrain exchange coupling interaction (IGEC), is approved by the calculated results. It is found that IGEC weakens with increasing grain size D for single-phase nanocrystalline and nanocomposite permanent magnets. Thus, the demagnetization curve shows a two-phase behavior and the delta m ( H) curve shows two peaks for the nanocomposite sample with D 20 nm. The peak at small field can be attributed to the exchange interaction between the magnetic hard and soft grains, while the peak at large field may be due to the IGEC among hard grains. |
| 收录类别 | SCI |
| 语种 | 中文 |
| 公开日期 | 2013-09-18 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/40263]  |
| 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 | Rong, CB,Zhang, HW,Chen, RJ,et al. Investigation of intergrain exchange coupling interaction of nanocrystalline permanent magnets by numerical simulation[J]. ACTA PHYSICA SINICA,2004,53(12):4353. |
| APA | Rong, CB,Zhang, HW,Chen, RJ,He, SL,Zhang, SY,&Shen, BG.(2004).Investigation of intergrain exchange coupling interaction of nanocrystalline permanent magnets by numerical simulation.ACTA PHYSICA SINICA,53(12),4353. |
| MLA | Rong, CB,et al."Investigation of intergrain exchange coupling interaction of nanocrystalline permanent magnets by numerical simulation".ACTA PHYSICA SINICA 53.12(2004):4353. |
入库方式： OAI收割
来源：物理研究所
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