Hi All -

Does anyone know a source for small magnets (or magnetic beads/particles)
(i.e. in the neighborhood of 100 um x 100 um x (>= 100 um))?

High magnetization is a plus;  rare-earth magnets of this size would
be ideal.

I'll summarize responses back to the list.

Thanks!

Marc Unger
Caltech Applied Physics
ungerm@cco.caltech.edu