Magnetic anisotropy of submonolayer Pt films grown on Ni(110)

About one atomic layer of Pt was deposited on a Ni(110) surface to investigate the magnetic anisotropy of the interface. The magnetization of Pt atoms was probed with resonant magnetic x-ray diffraction and the magneto-optical Kerr effect was utilized to probe the average magnetization of the Ni in...

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Bibliographic Details
Published in:Journal of physics. Condensed matter 2003-07, Vol.15 (25), p.4279-4285
Main Authors: Quirós, C, Robach, O, Isérn, H, Ferrer, S
Format: Article
Language:English
Subjects:
Applied sciences
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Exact sciences and technology
Interfacial magnetic properties (multilayers, magnetic quantum wells, superlattices, magnetic heterostructures)
Magnetic properties and materials
Magnetic properties of surface, thin films and multilayers
Metals. Metallurgy
Physics
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Summary:About one atomic layer of Pt was deposited on a Ni(110) surface to investigate the magnetic anisotropy of the interface. The magnetization of Pt atoms was probed with resonant magnetic x-ray diffraction and the magneto-optical Kerr effect was utilized to probe the average magnetization of the Ni in the nearsurface region. Our results show that the magnetization of the Pt atoms in the surface plane depends on the direction of the applied field. While the [110] direction shows a hysteresis cycle of the Pt film typical of an easy magnetization axis, the [001] direction has a hard axis behaviour. In contrast, the Ni(I10) substrate shows similar cycles for the two directions. A possible explanation, based on the formation of an anisotropic superstructure, as observed by means of surface x-ray diffraction, is suggested.
ISSN:0953-8984
1361-648X
DOI:10.1088/0953-8984/15/25/301