Magnetic susceptibility measurement of single iron/cobalt carbonyl microcrystal by atmospheric magnetophoresis.

In this study, the use of an innovative atmospheric magnetophoresis, which enables us to measure the mass magnetic susceptibility and mass of a microparticle simultaneously, was demonstrated. Using this technique, we determined the magnetic susceptibility of a crystalline deposit of iron/cobalt carbonyl, mainly composed of Fe(CO), which was prepared photochemically from a gaseous mixture of iron pentacarbonyl (Fe(CO)) and cobalt tricarbonyl nitrosyl (Co(CO)NO). The mass magnetic susceptibility and the characteristic relaxation time of the microcrystal were (7.