Figure 5.

Magnetic hysteresis loops along the easy (red) and hard (blue) magnetisation directions. The samples consist of an increasing number of (Co8 nm-54°/Co12 nm-0°/Ta6 nm-54°) trilayers: one to four trilayers plotted in (a) to (d), respectively.

Vergara et al. Nanoscale Research Letters 2012 7:577   doi:10.1186/1556-276X-7-577
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