The paper presents results of a research on simulation of magnetic tip-surface interaction as a function of the lift height in the magnetic force microscopy. As expected, magnetic signal monotonically decays with increasing lift height, but the question arises, whether or not optimal lift height eventually exists. To estimate such a lift height simple procedure is proposed in the paper based on the minimization of the fractal dimension of the averaged profile of the MFM signal. In this case, the fractal dimension serves as a measure of distortion of a pure tip-surface magnetic coupling by various side effects, e.g. thermal noise and contribution of topographic features. Obtained simulation results apparently agree with experimental data.

JO - Archives of Metallurgy and Materials L1 - http://www.czasopisma.pan.pl/Content/107986/AMM-2018-3-06-Senderowski.pdf L2 - http://www.czasopisma.pan.pl/Content/107986 IS - No 3 EP - 1113 KW - lift height optimization KW - magnetic force microscopy KW - fractal analysis ER - A1 - Bramowicz, M. A1 - Kulesza, S. A1 - Chrostek, T. A1 - Senderowski, C. PB - Institute of Metallurgy and Materials Science of Polish Academy of Sciences PB - Commitee on Metallurgy of Polish Academy of Sciences VL - vol. 63 JF - Archives of Metallurgy and Materials SP - 1109 T1 - Application of Fractal Analysis Methods for Lift Height Optimization in Magnetic Force Microscopy Measurements UR - http://www.czasopisma.pan.pl/dlibra/docmetadata?id=107986 DOI - 10.24425/123783