Details

Autor(en) / Beteiligte

• Dionne, Gerald F.

Titel

Introductory Magnetism

Ist Teil von

• Magnetic Oxides, 2009, p.1-35

Ort / Verlag

Boston, MA: Springer US

Erscheinungsjahr

2009

Link zum Volltext

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• The use of magnetic oxides in electronics technology has become so commonplace that few systems can operate effectively without some form of them making a vital contribution. Wherever magnetic materials with dielectric properties (or vice versa) are required, there is likely to be an application for a ferrite or other transition-metal oxide, from cores for inductors and transformers, to discs or tapes and read/write heads for information storage, to thin films for high-density computer memories, to nonreciprocal microwave control devices, to antennas for home electronics, to microwave antireflection coatings, to permanent magnets for automobile ignitions, to isolator devices for fiber-optical laser sources, to rubberized refrigerator magnets. In later years, exotic phenomena that jointly involve the magnetic and electrical conductivity properties have been discovered in oxides that contain magnetic ions. High-temperature superconductivity for low power loss and giant magnetoresistance effects for magnetic field sensors and magnetic random access memories (MRAMs) have been found in perovskite-based compounds. Hybrid combinations of piezoelectric and magnetic compounds have spawned a growing interest in piezomagnetics and multiferroics. Magnetic oxides have also provided a molecular-scale vehicle for fundamental investigations of the electronic and magnetic properties of the important transition-metal and rare-earth elements of the Periodic table.