Magnetic force microscopy of the submicron magnetic assembly in a magnetotactic bacterium

R. B. Proksch, T. E. Schäffer, B. M. Moskowitz, E. D. Dahlberg, D. A. Bazylinski, R. B. Frankel

Research output: Contribution to journalArticlepeer-review

98 Scopus citations

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 10-13emu, 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.

Original languageEnglish (US)
Pages (from-to)2582
Number of pages1
JournalApplied Physics Letters
DOIs
StatePublished - 1995

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