Murugesh, S. ; Lakshmanan, M. (2009) Spin-transfer torque induced reversal in magnetic domains Chaos, Solitons & Fractals, 41 (5). pp. 2773-2781. ISSN 0960-0779
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Official URL: http://www.sciencedirect.com/science/article/pii/S...
Related URL: http://dx.doi.org/10.1016/j.chaos.2008.10.018
Abstract
Using the complex stereographic variable representation for the macrospin, from a study of the nonlinear dynamics underlying the generalized Landau-Lifshitz (LL) equation with Gilbert damping, we show that the spin-transfer torque is effectively equivalent to an applied magnetic field. We study the macrospin switching on a Stoner particle due to spin-transfer torque on application of a spin-polarized current. We find that the switching due to spin-transfer torque is a more effective alternative to switching by an applied external field in the presence of damping. We demonstrate numerically that a spin-polarized current in the form of a short pulse can be effectively employed to achieve the desired macrospin switching.
Item Type: | Article |
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Source: | Copyright of this article belongs to Elsevier Science. |
ID Code: | 85025 |
Deposited On: | 29 Feb 2012 07:04 |
Last Modified: | 19 May 2016 01:14 |
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