Postprint version. Published in Journal of Magnetism and Magnetic Materials, Volume 140-144, Issue 2, February 1, 1995, pages 1459-1461.
The definitive version is available at https://doi.org/10.1016/0304-8853(94)01314-4.
An accurate quantification of magnetic force microscope images has been accomplished. The magnetosomes produced by magnetotactic bacteria, an ideal micromagnetic model system, were the specimens used for the quantification (a moment on the order of 10−13 emu).