Hitoshi Abe et al 2009 J. Phys.: Conf. Ser. 190 012109 doi:10.1088/1742-6596/190/1/012109
Surface antiferromagnetic coupling of Fe/Cu(001) induced by NO adsorpion studied by means of depth-resolved XMCD method
Hitoshi Abe1, Masako Sakamaki2 and Kenta Amemiya3
Show affiliationsEffects of NO adsorption on the magnetism of Fe(2 and 4 ML)/Cu(001) films have been studied. XMCD spectra have been measured for the films before and after NO adsorption. The bare 4 ML Fe film is magnetized perpendicularly, and mseff is 2.5 μB. However, the NO adsorbed 4 ML Fe film exhibits in-plane magnetization and shows mseff of 1.2 μB, which is about a half of mseff of the bare film. The apparent fifty percent reduction of mseff can be attributed to an idea that mseff of 1 ML aligns in the opposite direction to that of the other 3 MLs'. This antiferromagnetic coupling between the topmost layer and the other layers is suggested by the careful analyses of the depth resolved XMCD spectra.
- PACS
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75.70.Ak Magnetic properties of monolayers and thin films
78.70.Dm X-ray absorption spectra
78.20.Ls Magnetooptical effects
75.60.Ej Magnetization curves, hysteresis, Barkhausen and related effects
- Subjects
- Dates
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Issue 1 (2009)
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Surface antiferromagnetic coupling of Fe/Cu(001) induced by NO adsorpion studied by means of depth-resolved XMCD method
Hitoshi Abe et al 2009 J. Phys.: Conf. Ser. 190 012109
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