Method for magnetizing multiple zones in a monolithic piece of magnetic material

A method for forming a magnet having multiple magnetic zones in a single monolithic substrate, the single monolithic substrate having a first magnetic polarity, the method comprising:

• heating the single monolithic substrate to change a coercivity of the single monolithic substrate from a first coercivity to a second coercivity less than the first coercivity;
• aligning first regions of the single monolithic substrate with magnetic field concentration zones of a fixture, the first regions separated by intervening second regions of the single monolithic substrate;
• and
• causing the magnetic field concentration zones to apply a magnetic field to the first regions, thereby imparting a second magnetic polarity to the first regions, the second magnetic polarity opposite the first magnetic polarity, wherein the second regions retain the first magnetic polarity.

A magnet, comprising:

• a single monolithic substrate composed of ferromagnetic metal, the single monolithic substrate including:
• a first magnetic region characterized as having a first induced magnetic field polarity strength corresponding to a first coercivity at a first temperature;
• and
• a transition zone located between the first magnetic region and a second magnetic region of the single monolithic substrate, wherein the second magnetic region is characterized as having a second induced magnetic field polarity that is opposite of the first induced magnetic field polarity, and the transition zone is characterized as being un-magnetized in accordance with a coercivity at a nominal temperature that is less than the first temperature.