Rahm, Michael and Stahl, Joachim and Wegscheider, Werner and Weiss, Dieter (2004) Multistable switching due to magnetic vortices pinned at artificial pinning sites. APPLIED PHYSICS LETTERS, 85 (9). pp. 1553-1555. ISSN 0003-6951,
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Magnetic vortices form the ground state in micron and submicron ferromagnetic disks. By inserting artificial defects (antidots) into a submicron ferromagnetic disk, magnetic vortices can be pinned controllably thus enabling a different way for magnetic switching. We show that by inserting n antidots into a disk magnetization reversal takes place via n-1 jumps of the vortex core between neighboring antidots. This cannot only be used to establish stable two-state switching for n=2, but also to realize a multilevel remanent state with low switching fields. (C) 2004 American Institute of Physics.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | VORTEX STRUCTURES; NANODISKS; PERMALLOY; DEFECTS; FIELD; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Experimental and Applied Physics > Alumni or Retired Professors > Group Werner Wegscheider Physics > Institute of Experimental and Applied Physics > Chair Professor Weiss > Group Dieter Weiss |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 02 Jul 2021 04:56 |
| Last Modified: | 02 Jul 2021 04:56 |
| URI: | https://pred.uni-regensburg.de/id/eprint/37318 |
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