Magnetic force microscopy of the submicron magnetic assembly in a magnetotactic bacterium
نویسندگان
چکیده
A magnetic force microscope �MFM� was used to image topography and magnetic forces from a chain of submicron single magnetic domain particles produced by and contained in isolated magnetotactic bacteria. The noncontact magnetic force microscope data were used to determine a value for the magnetic moment of an individual bacterial cell, of order 10 emu, consistent with the average magnetic moment of bacteria from the same sample, obtained by superconducting quantum interference device magnetometry. The results represent the most sensitive quantification of a magnetic force microscope image to date. © 1995 American Institute of Physics.
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