Magnetism
摘要
The carriers of magnetism in a condensed matter are usually the atoms of transition elements with non-zero magnetic moments or spins. The magnetic moment in an atom appears due to existence of unfilled electronic d- or f-shells. These are 3d elements of the iron group, rare earth 4f elements, and 5f actinides. As a rule, the atoms of these elements are responsible for the manifestation of magnetism.