Figure 6.

The vortex range in the Fe layer on the easy axis direction of Co layer. The Co layer easy axis deviates from the applied field direction by the angle of 0°, 30°, 60°, 90°. The asymmetric dots are characterized by α = 0, 0.25, 0.5, 0.75, 1. The solid and dash lines describe the vortex range calculated from the descending and ascending branches of the Fe layer loop, respectively.

Yan et al. Nanoscale Research Letters 2014 9:106   doi:10.1186/1556-276X-9-106
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