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Magnetic and structural properties of ultrathin magnetic films: Ni/Pt(111)  

Nahm, T.U. (Department of Physics and Quantum Photonic Science Research Center, Hanyang University)
Oh, S.J. (Department of Physics and Center for Strongly Correlated Material Research, Seoul National University)
Publication Information
Journal of the Korean Vacuum Society / v.12, no.S1, 2003 , pp. 17-20 More about this Journal
Abstract
We have studied magnetic and structural properties of ultrathin Ni films grown on PI(lII) surface using in situ surface magneto-optic Kerr effect and X-ray photoelectron spectroscopy. Perpendicular magnetic anisotropy was absent, and longitudinal Kerr signal was only detectable for Ni films thicker than 6 monolayers. Enhancement in longitudinal Kerr signal by 30% was achieved by post-annealing at temperatures below 800K, but upon annealing at 820K, surface alloy was formed. By using core-level binding-energy shifts, the composition was determined to be Ni 70 at. %.
Keywords
surface magneto-optic Kerr effect (SMOKE); X-ray photoelectron spectroscopy (XPS); interdiffusion; Nickel; Platinum; magnetic films;
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