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Hard Magnetic Materials. Soft Magnetic Materials. 1. Materials which retain their magnetism and are difficult to demagnetize are called hard magnetic materials. These materials retain their magnetism even after the removal of the applied magnetic field. Hence these materials are used for making permanent magnets.n permanent magnets the movement of the domain wall is prevented. They are prepared by heating the magnetic materials to the required temperature and then quenching them. Impurities increase the strength of hard magnetic materials. Soft magnetic materials are easy to magnetize and demagnetize.
A magnet is an object that attracts or repels other objects within a magnetic field. Magnets can be permanent or temporary and vary in size, shape or in the strength of its magnetic field. Some magnets are more powerful than others. During olden times, people thought magnets were magical.