Abstract

The ferromagnetic coupling across Pd interlayers has been determined from hysteresis loop measurements on multilayers of the type M 3/8ÅRu/M 2/χPd/M 1. Here M 1, M 2 and M 3 denote magnetic layers consisting of (strongly ferromagnetically coupled) Co/Pd multilayers with perpendicular magnetic anisotropy. The hysteresis loops displayed a staircase behavior. Analysis of the steps yielded coupling values between 0.17 mJ/m 2 (at 14ÅPd) and 0.02 mJ/m 2 (at 20åPd).

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