Sang C X 1, 2, Zhao G P 1, 2, †, ![](http://cpb.iphy.ac.cn/html_resources/images/REemail.gif) , Xia W X 2, ‡, ![](http://cpb.iphy.ac.cn/html_resources/images/REemail.gif) , Wan X L 1, Morvan F J 1, Zhang X C 1, Xie L H 1, Zhang J 2, Du J 2, Yan A R 2, Liu P 2, 3
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Comparison of calculated hysteresis loops with experimental loops for Cr(50 nm)/[SmCo6(9 nm)/Cu(x nm)/Fe(5 nm)/Cu(x nm)]6/Cr(100 nm)/a-SiO2 (x = 0–0.75). (a) The black squares are for the sample with x = 0 annealed at 500 °C measured at 10 K while the red circles are for the sample with x = 0.75 annealed at 500 °C measured at 10 K. (b) The black lines are for th = 9 nm, ts = 5 nm, and Ahs = 1.8 × 10−6 erg/cm; while the red lines are for th = 9 nm, ts = 5 nm, and Ahs = 0.9 × 10−6 erg/cm using OOMMF. |