| EFFECT OF α-Fe SURFACE LAYER ON THE MAGNETIC REVERSION PROCESS FOR Nd2Fe14B CRYSTAL |
| |
| 引用本文： | 赵素芬,金汉民,王学凤,闫羽.EFFECT OF α-Fe SURFACE LAYER ON THE MAGNETIC REVERSION PROCESS FOR Nd2Fe14B CRYSTAL[J].中国物理 B,2001,10(12):1157-1162. |
| |
| 作者姓名： | 赵素芬 金汉民 王学凤 闫羽 |
| |
| 作者单位： | Department of Physics, Jilin University, Changchun 130023, China;Department of Physics, Jilin University, Changchun 130023, China;Department of Physics, Jilin University, Changchun 130023, China;Department of Physics, Jilin University, Changchun 130023, China |
| |
| 基金项目： | Project supported by the National Natural Science Foundation of China (Grant No. 59871019). |
| |
| 摘 要： | The demagnetization process for a Nd2Fe14B grain covered by an α-Fe layer was studied by use of the finite element technique of micromagnetics. μ0iHc decreases with the increase of α-Fe layer thickness t. With the increase of t from 0 to 6nm, μ0iHc decreases from ～7 T to ～3.5 T when the angle between the applied field and the c-axis of the Nd2Fe14B grain is 0.5° and from ～4 T to ～1.5 T when the angle is 30° or 60°. The effect is only slightly affected by the angle between the α-Fe layer and the field direction.
|
| 收稿时间： | 2001-02-13 |
|
| 点击此处可从《中国物理 B》浏览原始摘要信息 |
| 点击此处可从《中国物理 B》下载免费的PDF全文 |
|
