Hitoshi Abe et al 2009 J. Phys.: Conf. Ser. 190 012109 doi:10.1088/1742-6596/190/1/012109
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.
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
Issue 1 (2009)
Hitoshi Abe et al 2009 J. Phys.: Conf. Ser. 190 012109
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