Influence of a non-magnetic capping layer and annealing temperature on the magnetic properties of Fe films

Yunhee Cho; Donghyuk Yang; Dooyong Lee; Jiwoong Kim; Sungkyun Park; Jisung Lee

doi:10.3938/NPSM.67.1157

Influence of a non-magnetic capping layer and annealing temperature on the magnetic properties of Fe films

Yunhee Cho, Donghyuk Yang, Dooyong Lee, Jiwoong Kim, Sungkyun Park, Jisung Lee

Research output: Contribution to journal › Article › peer-review

Abstract

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 °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.

Original language	English
Pages (from-to)	1157-1161
Number of pages	5
Journal	New Physics: Sae Mulli
Volume	67
Issue number	10
DOIs	https://doi.org/10.3938/NPSM.67.1157
State	Published - Oct 2017

Keywords

Capping materials
Interdiffusion
Magnetic properties
Post-annealing

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abstract = "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 °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.",

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T1 - Influence of a non-magnetic capping layer and annealing temperature on the magnetic properties of Fe films

AU - Cho, Yunhee

AU - Yang, Donghyuk

AU - Lee, Dooyong

AU - Kim, Jiwoong

AU - Park, Sungkyun

AU - Lee, Jisung

PY - 2017/10

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N2 - 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 °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.

AB - 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 °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.

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Influence of a non-magnetic capping layer and annealing temperature on the magnetic properties of Fe films

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