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In this paper, we present a micromagnetic study of the effect of the Gilbert damping term on the magnetization reversal properties of a ring-shaped PSV. The transition between the two stable vortex states of the storage layer is modeled by applying a write current pulse and considering the effects of the Ampere field and spin-transfer torque. The magnetization switching mechanism is investigated for different amplitude and duration of the current pulse. The optimal switching behavior under varying damping coefficient is discussed. We observe that apart from the current pulse amplitude and duration, the damping coefficient also has a significant effect on magnetization switching properties, especially for short current pulses
Published in:
Magnetics, IEEE Transactions on
(Volume:43
,
Issue:
6
)
Date of Publication: June 2007
- Page(s):
- 2923 - 2925
- ISSN :
- 0018-9464
- INSPEC Accession Number:
- 9491822
- Digital Object Identifier :
- 10.1109/TMAG.2007.892587
- Product Type:
- Journals & Magazines
- Date of Current Version :
- 21 May 2007
- Issue Date :
- June 2007
- Sponsored by :
- IEEE Magnetics Society
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