Abstract
The magnetization reversal of a nanometer size ferromagnetic particle with surface anisotropy is investigated by micromagnetic computer simulation. Two kinds of calculations were performed: calculations with and without thermal fluctuation. In the case without thermal fluctuation a surface anisotropy of several ergs/cm2 was found to increase the magnetization reversal field of the particle by a factor of ten as compared with the case without surface anisotropy. The introduction of surface anisotropy was also found to increase the reversal field, and hence, improve thermal stability.
Original language | English |
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Pages (from-to) | 3205-3207 |
Number of pages | 3 |
Journal | IEEE Transactions on Magnetics |
Volume | 36 |
Issue number | 5 I |
DOIs | |
Publication status | Published - 2000 Sep |
Externally published | Yes |
Event | 2000 International Magnetics Conference (INTERMAG 2000) - Toronto, Ont, Canada Duration: 2000 Apr 9 → 2000 Apr 12 |
Keywords
- Computer simulation
- Fine particle
- Micromagnetics
- Surface anisotropy
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Electrical and Electronic Engineering