Magnetic Multilayers Metallic Sandwiches

New magnetic materials are vital for the improvement of computer hard

New magnetic materials are vital for the improvement of computer hard disks
View full-size image

People have observed magnetism for almost 3000 years.

The attractive powers of lodestone were known in Europe and China by around 800 BC, and this iron oxide mineral was used as a primitive compass by the Chinese as early as AD 100.

It was not until 1263 that Pierre de Maricourt discovered that magnets have a north and south pole, and it was another 600 years before physicists and chemists such as André-Marie Ampère and Michael Faraday demonstrated the intimate link between electricity and magnetism.  We now know that this link results from quantum mechanical effects.

Bookmark and Share
Skip to the top of the page