I'm interested in permanently magnetizing a small piece of Ni or Fe. The size of the piece is quite small with diameter of 1 mm and thickness around 100 um - 500 um.
What are the field strengths that would be required to permanently magnetize the piece, and what would be the simplest method of achieving those?
Philippe Tailhades
Ni and Fe are generally soft magnetic materials, which can be easily magnetized. Perhaps the simplest method is to use a permanent magnet. Permanent magnets such as neodynium iron boron or samarium cobalt magnets, would be enough powerfull.
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