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Calculation of the Bloch wall contrast in magnetic force microscopy
Author(s) -
Hartmann U.,
Heiden C.
Publication year - 1988
Publication title -
journal of microscopy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.569
H-Index - 111
eISSN - 1365-2818
pISSN - 0022-2720
DOI - 10.1111/j.1365-2818.1988.tb01389.x
Subject(s) - magnetic force microscope , mesoscopic physics , magnetic resonance force microscopy , microscope , nanometre , resolution (logic) , atomic force microscopy , materials science , physics , optics , condensed matter physics , magnetic field , nuclear magnetic resonance , magnetization , nanotechnology , ferromagnetic resonance , computer science , quantum mechanics , artificial intelligence
SUMMARY The magnetic force microscope (MFM) is a promising analytical tool for the mapping of magnetic microfield distributions on a nanometre scale. The detailed interpretation of experimentally obtained data requires a rigorous micromagnetic analysis of the underlying magnetostatic tip‐sample interactions. We have performed model calculations yielding the MFM image contrast obtained for 180° Bloch walls using ferromagnetic microscope tips. The actually observed wall image is shown to depend critically upon the mesoscopic tip design. The spatial resolution and also values for the resulting interaction forces and tip‐sample compliances are derived.