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Ferromagnetism is a property of certain materials (such as iron) that results in a significant, observable magnetic permeability, and in many cases, a significant magnetic coercivity, allowing the material to form a permanent magnet. Ferromagnetic materials are noticeably attracted to a magnet, which is a consequence of their substantial ...
15 wrz 2023 · Ferromagnetism is an exciting phenomenon observed in certain materials, known as ferromagnetic materials, that can retain their magnetization even after removing an external magnetic field. Ferromagnetic materials can become ferromagnets and interact strongly with other magnets and magnetic fields.
19 paź 2024 · Ferromagnetism, physical phenomenon in which certain electrically uncharged materials strongly attract others. Two materials found in nature, lodestone (or magnetite, an oxide of iron, Fe3O4) and iron, have the ability to acquire such attractive powers, and they are often called natural.
The most common ferromagnetic materials are cobalt, iron, nickel, along with Lodestone a naturally magnetized mineral and other rare earth metal compounds. A common usages of ferromagnetic materials affecting our everyday lives is through magnetic storage in the form of data.
Iron, nickel, cobalt and some of the rare earths (gadolinium, dysprosium) exhibit a unique magnetic behavior which is called ferromagnetism because iron (ferrum in Latin) is the most common and most dramatic example.
A ferromagnetic material is defined as one, which undergoes a phase transition from a high-temperature phase, which does not have a macroscopic magnetic moment, to a low temperature phase, which has a spontaneous magnetization even in the absence of an applied magnetic field.
Ferromagnetism describes the phenomenon whereby a material can be magnetised permanently, with variable strength, and reversibly - by an applied magnetic field. Atoms are structured so that electrons prefer to sit in pairs in their orbits so that each pair contains electrons with opposite spin, and the orbits are filled from low to high energy.
