Abstract
Demagnetization curves of Nd-Fe-B magnets are evaluated being based on the micro-magnetics for inhomogeneous nucleation, by considering a magnetic planar defect. The inhomogeneous nucleation field, reduced due to the magnetic defect, is increased as an effect of the second anisotropy constant, K2 even though K1>4K2 is satisfied where Kl is the first anisotropy constant. Further, the demagnetization process under the condition where the spin structure is conical is also examined by letting -2K2<K1<0. The nucleation field in this case is also reduced due to the detect and is shown to increase as the angle of applied field goes up.
| Original language | English |
|---|---|
| Pages (from-to) | 1745-1747 |
| Number of pages | 3 |
| Journal | IEEE Transactions on Magnetics |
| Volume | 26 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - 1990 Sep |
| Externally published | Yes |
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Electrical and Electronic Engineering