Abstract
The magnetization switching behavior of permalloy ring elements as a function of ring diameter and film thickness by magnetoresistance measurement is presented. The permalloy ring elements, with diameters of 2-5μm and a thickness of 14-66nm, were fabricated by electron beam lithography through a lift-off process. The switching field for the transition from the vortex state to the onion state increases with decreasing size. Furthermore, the switching field increases with increasing thickness up to a critical value of about 53-65nm, over which the switching field tends to decrease with increasing thickness.
| Original language | English |
|---|---|
| Pages (from-to) | 351-354 |
| Number of pages | 4 |
| Journal | Journal of Magnetism and Magnetic Materials |
| Volume | 282 |
| Issue number | 1-3 |
| DOIs | |
| Publication status | Published - 2004 Nov 1 |
| Event | International Symposium on Advanced Magnetic Technologies - Taipei, Taiwan Duration: 2003 Nov 13 → 2003 Nov 16 |
All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
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Chang, C. C., Chang, Y. C., Wu, J. C., Wei, Z. H., Lai, M. F., Chang, C. R., & Kuo, J. H. (2004). Size effects on switching field of ring-shaped permalloy elements. Journal of Magnetism and Magnetic Materials, 282(1-3), 351-354. https://doi.org/10.1016/j.jmmm.2004.04.082