Influence of Different Onion States on Magnetization Reversal Processes in Permalloy Rings
| Autor: | Chi-Kuen Lo, Mei-Feng Lai, Da-Ren Liu, Ying-Jiun Chen, Zung-Hang Wei, Yi-Hsun Chiu, Chia-Jung Hsu, Chun-Neng Liao, Chiun-Peng Lee |
|---|---|
| Rok vydání: | 2010 |
| Předmět: |
Physics
Permalloy Condensed matter physics Magnetic domain Magnetoresistance Computer Science::Social and Information Networks Magnetic hysteresis Helicity Electronic Optical and Magnetic Materials Vortex Condensed Matter::Soft Condensed Matter Hysteresis Magnetization Electrical and Electronic Engineering Computer Science::Cryptography and Security |
| Zdroj: | IEEE Transactions on Magnetics. 46:179-182 |
| ISSN: | 1941-0069 0018-9464 |
| Popis: | Simulation and experiment are performed to investigate the influence of onion states with different-helicity pair vortices on the magnetization reversal process. It is found that for the onion state that has pair vortices with the same helicity, flux-closure state occurs in the reversal process; for the onion state that has pair vortices with opposite helicity, flux-closure state does not occur in the reversal process, and the onion state transforms directly to the reverse onion state. In addition, notches at the same side and diagonal notches with respect to the field direction are designed on the permalloy rings to induce onion states with same-helicity pair vortices and opposite-helicity pair vortices, respectively, for the control of the three-step and two-step magnetization reversal processes. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|