Magnetic Force Microscopy of the Submicron Magnetic Assembly in a Magnetotactic Bacterium

Author Info

R. B. Proksch, University of California - Santa Barbara
T. E. Schäffer, University of California - Santa Barbara
B. M. Moskowitz, University of Minnesota
E. D. Dahlberg, University of Minnesota
Dennis A. Bazylinski, Northeastern University
Richard B. Frankel, California Polytechnic State University - San Luis ObispoFollow

Recommended Citation

Published in Applied Physics Letter, Volume 66, Issue 19, May 8, 1995, pages 2582-2584.

The definitive version is available at https://doi.org/10.1063/1.113508.

Abstract

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 10⁻¹³ 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.

Disciplines

Physics

Copyright

1995 American Institute of Physics.

Publisher statement

This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Applied Physics Letters.