Interface magnetism and superparamagnetism of Co/Cu multilayers
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چکیده
The magnetic properties of ColCu multilayers were investigated from 5 to 380 K and analyzed in terms of the interFace magnetism and mean-field model. The interface, which is about 1.2 w thick, is nonmagnetic at room temperature and becomes magnetic at 5 K with the average magnetization of 40% of the pure Co magnetization. The samples of X w Co/l0 A Cu behaved superparamagnetically as X ranged from 4 to 6.5 A and did not show superparamagnetic behavior for thinner or thicker C!o layer thickness.
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تاریخ انتشار 2013