I'm starting to optimize geometry of the coil for best magnetization.

The aim is to attempt to focus the magnetic field into a sort of a beam that penetrates the magnet as deeply as possible. I want to localize magnetization zone, so that I create as little tangential magnetization as possible.

So far, I just simulated the approximate geometry of the coil I used to create that "pixel".

The side of the coil creates a strong tangential field, which is something undesirable. On the top side, the field has slightly better shape, but is much weaker.