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I don't know if the following is possible to manufacture, but bear with me and let's assume for a moment that it is. Perhaps the process might be something as follows:
1) Create a "dead' sintered cylindrical block comprising equal mixes of both Barium (Ba) and Strontium (Sr) ferrite.
2) Assume that exposing this homogeneous block to a certain EM frequency (perhaps via NMR) can selectively "pin" either the Ba or Sr domains during magnetization.
3) Pin the Ba domains and saturate the Sr domains along the axis from N-S.
4) Next, pin the Sr domains in their new orientation, and saturate the Ba domains along the axis from S-N.
5) Assume that the resulting remnant magnetization of both are exactly equal, but in opposite directions, and that the dispersion of each domain type is highly homogeneous throughout.
Q1. What will the PM's resulting magnetic field look like?
Q2. Will there even be a detectable magnetic field around the magnet?
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"Some scientists claim that hydrogen, because it is so plentiful, is the basic building block of the universe. I dispute that. I say there is more stupidity than hydrogen, and that is the basic building block of the universe." Frank Zappa
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Topic: A "Neutral" Permanent Magnet (Read 2382 times)
