Ferromagnetic materials are substances that can be strongly magnetized due to their ability to align their atomic moments in parallel with an external magnetic field.
Think of ferromagnetic materials like a group of synchronized dancers who all move in perfect unison when following instructions from their choreographer (the external magnetic field).
Paramagnetic: Materials that weakly respond to an applied magnetic field and do not retain any significant magnetization after removing the external field.
Diamagnetic: Materials that have no permanent atomic dipole moments and are slightly repelled by an applied magnetic field.
Curie Temperature: The temperature at which ferromagnetic materials lose their permanent magnetism due to thermal agitation.
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