Magnetic and superconducting materials pervade every avenue of the technological world from microelectronics and mass-data storage to medicine and heavy engineering. This Concise Encyclopedia draws together for the first time in a single volume the remarkable advances seen in recent years in the discovery of new materials and improvements of existing materials, in the elucidation of a new and deeper understanding of their phenomenology and in the expansion and diversification of their application in technology. Magnetic and superconducting materials have much in common; they have both...