| Issue |
EPL
Volume 84, Number 1, October 2008
|
|
|---|---|---|
| Article Number | 17002 | |
| Number of page(s) | 5 | |
| Section | Condensed Matter: Electronic Structure, Electrical, Magnetic and Optical Properties | |
| DOI | https://doi.org/10.1209/0295-5075/84/17002 | |
| Published online | 17 September 2008 | |
Giant magnetoresistance behavior of pseudo spin valve rings with magnetostatically coupled elements
Information Storage Materials Laboratory, Department of Electrical and Computer Engineering, National University of Singapore - Singapore 117576, Singapore
Corresponding author: eleaao@nus.edu.sg
Received:
21
June
2008
Accepted:
14
August
2008
We have investigated the giant magnetoresistance (GMR) responses of the pseudo spin valve elliptical rings placed in close proximity with individual magnetic elements. Significant modifications to the GMR responses were observed due to the effects of magnetostatic coupling between the rings and the magnetic elements. We have shown that the stability of the vortex state in the rings can be systematically controlled by varying the orientation and position of the individual magnetic elements relative to the ring structure. Our experimental observations were verified by micromagnetic simulations.
PACS: 75.30.Fv – Spin-density waves / 75.47.De – Giant magnetoresistance / 75.50.Cc – Other ferromagnetic metals and alloys
© EPLA, 2008
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