püsimagnetites
Püsimagnetites, often referred to as permanent magnets, are objects made from a material that is magnetized and creates its own persistent magnetic field. This magnetic field exists without the need for an external electric current or applied magnetic field. The property of permanent magnetism arises from the alignment of magnetic domains within the material. Domains are small regions where the magnetic moments of atoms are aligned. In a non-magnetized material, these domains are oriented randomly, resulting in no net magnetic field. However, when exposed to a strong external magnetic field, these domains can align, and if the material is a hard magnetic material, this alignment can be retained even after the external field is removed, creating a permanent magnet.
Common materials used for püsimagnetites include alloys of iron, nickel, and cobalt, as well as rare-earth elements
Püsimagnetites have a wide range of applications due to their ability to generate a magnetic field without