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http://dx.doi.org/10.4283/JKMS.2013.23.5.154

Magnetization Behavior of CoB/Ru/CoB Thin Film  

Kim, Dong Young (Department of Physics, Andong National University)
Yoon, Seok Soo (Department of Physics, Andong National University)
Abstract
We have analyzed the magnetization curves measures by using VSM and MOKE in synthetic antiferromagnetic coupled CoB/Ru/CoB thin film. The measured results were compared with calculated ones by Stoner-Wohlfarth model based on the magnetization behavior of two ferromagnetic layers ($M_1$, $M_2$). The calculated total magnetization ($M_{tot}=M_1+M_2$) and single layer magnetization($M_1$) behaviors were compared with measured results by using VSM and MOKE, respectively. The total magnetization curve ($M_{tot}=M_1+M_2$) showed reversible magnetization behavior with flopping field of about 50 Oe. While single layer magnetization ($M_1$) behaviors showed irreversible magnetization behavior in the field range of $H_F$ < H < $H_F$. These magnetization behaviors were explained by the angle difference between magnetization directions of two ferromagnetic layers in SAF sample.
Keywords
antiferromagnetic coupling; magnetization; flopping field; Stoner-Wohlfarth model;
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