Abstract
In many applications in which synthetic antiferromagnetic (SAF) structures are used, the most intricate problem is to design a magnetic field sequence to safely switch the AF coupled magnetic moments. In this paper, we analyze the switching of a SAF structure under a magnetic field pulse using the concept of critical curve (CC). To observe the size effects on the CCs, we have used a full micromagnetic simulation based on Magpar software package. The results have been compared with a simulation of the CCs with a simplified model using two macrospins coupled antiferromagnetically with the dynamics described by the Landau-Lifshitz-Gilbert equation. The differences between the two ways of simulation the same switching process are presented and discussed.
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