Ferromagnetism: Difference between revisions
Jump to navigation
Jump to search
No edit summary |
|||
| Line 1: | Line 1: | ||
= Ferromagnetism = |
|||
== What is ferromagnetism? == |
== What is ferromagnetism? == |
||
Ferromagnetism is the type of magnetism exhibited by iron, nickel and cobalt. The effect in iron is much stronger than in nickel or cobalt. |
Ferromagnetism is the type of magnetism exhibited by iron, nickel and cobalt. The effect in iron is much stronger than in nickel or cobalt. Compared to paramagnetism and diamagnetism, ferrormagnetism is several of orders of magnitude stronger. Ferromagnetic materials are also able to retain magnetization outside of an external current or magnetic field. This is because iron and other ferromagnetic materials naturally form "magnetic domains" where a large group of atoms (in the billions) naturally align to each other to create an area with a net magnetic field. There are millions of these magnetic domains |
||
== What causes ferromagnetism? == |
|||
Revision as of 18:53, 5 January 2010
What is ferromagnetism?
Ferromagnetism is the type of magnetism exhibited by iron, nickel and cobalt. The effect in iron is much stronger than in nickel or cobalt. Compared to paramagnetism and diamagnetism, ferrormagnetism is several of orders of magnitude stronger. Ferromagnetic materials are also able to retain magnetization outside of an external current or magnetic field. This is because iron and other ferromagnetic materials naturally form "magnetic domains" where a large group of atoms (in the billions) naturally align to each other to create an area with a net magnetic field. There are millions of these magnetic domains