Norbert Puwenberg, Christopher F. Reiche, Robert Streubel, Mishal Khan, Dipankar Mukherjee, Ivan V. Soldatov, Michael Melzer, Oliver G. Schmidt, Bernd Büchner, Thomas Mühl
Phys. Rev. B 99, 094438 (2019)
Sketch of the extreme case where the MFM tip oscillates parallel to the local microtube surface (ϕ=90∘) with two different simplified magnetic domain configurations. (a) For domain walls parallel to the tip oscillation direction, no MFM signal is expected due to vanishing magnetostatic force z-component. (b) Domain walls perpendicular to the tip oscillation direction cause a detectable MFM signal.
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