strong magnetization induced by weak field: a property of some substances, including iron and some alloys, in which application of a weak magnetic field within a certain temperature range induces high magnetism.
Ferromagnetic materials have atomic fields that align themselves parallel with externally applied fields creating a total magnetic field much greater than the applied field. Ferromagnetic materials have permeabilities much greater than air (1). Above the curie temperature, the ferromagnetic materials become paramagnetic.
phenomenon exhibited by materials like iron (nickel or cobalt) that become magnetized in a magnetic field and retain their magnetism when the field is removed
Many substances are found to be magnetic, in that they are attracted by magnetic and electric fields, but it is found that the metals iron, cobalt, nickel and a number of alloys posses a greater level of magnetism than other substances. This powerful magnetism is called ferromagnetism, and is due to a large magnetic moment in the atoms of the metals due to an unbalanced spin of the electrons in their inner orbits.
permanent and large magnetizations found in some metals (e.g., Fe, Ni, and Co), which result from the parallel alignments of neighboring magnetic moments.
A phenomenon by which a material can exhibit spontaneous magnetization. One of the strongest forms of magnetism, ferromagnetism is responsible for most of the magnetic behavior encountered in everyday life and is the basis for all permanent magnets.
ferromagnetic. Compare with paramagnetic and diamagnetic. Ferromagnetic materials exhibit magnetism even in the absence of an external magnetic field. Ferromagnetic materials contain regions where many paramagnetic atoms or ions have magnetic moments that are aligned in the same direction. Iron, cobalt, nickel, and gadolinium are elements that can exhibit ferromagnetic behavior.
Ferromagnetism is the phenomenon by which materials, such as iron, in an external magnetic field become magnetized and remain magnetized for a period after the material is no longer in the field. All permanent magnets are either ferromagnetic or ferrimagnetic, as are the metals that are noticeably attracted to them. The attraction between a magnet and ferromagnetic material is "the quality of magnetism first apparent to the ancient world, and to us today," according to a classic text on ferromagnetism.Richard M.