Ex) Article Title, Author, Keywords
New Physics: Sae Mulli 2017; 67: 1157-1161
Published online October 31, 2017 https://doi.org/10.3938/NPSM.67.1157
Copyright © New Physics: Sae Mulli.
Yunhee CHO1, Donghyuk YANG1, Dooyong LEE1, Jiwoong KIM1, Sungkyun PARK*1, Jisung LEE1,2
This is an open-access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
The effects of a capping layer (Cu, Al) and post-annealing on the magnetic properties of Fe films grown on MgO(001) were investigated. As-grown films showed similar coercivities. However, the saturation magnetization was the largest for the uncapped Fe film, suggesting that the interface plays an important role in the saturation magnetization. After vacuum annealing at 500 $^\circ$C for 30 min, the coercivities of all films were increased. Moreover, the films with a capping layer showed increased saturation magnetization. However, the saturation magnetization of the uncapped Fe films was lower after annealing. The variations in the capping-material-dependent magnetic properties might be related to different effects that occur at the interface between the Fe and the capping layer.
Keywords: Capping materials, Post-annealing, Magnetic properties, Interdiffusion