POLYCRYSTALLINE STRUCTURE AND ITS PRODUCTION METHOD

摘要

A polycrystalline structure (24) has a base layer (31) stretching over a substrate (23). Small magnetic crystalline particles (32) are scatterlingly present on the base layer (31). The magnetic crystalline particles (32) are formed of an ordered alloy and spaced from one another on the base layer (31). Since sufficient crystal magnetic isotropy energy of the magnetic crystalline particles (32) is ensured, the magnetization in the magnetic crystalline particles (32) is maintained reliably even if the magnetic crystalline particles (32) are further atomized, and the spatial intervals between the magnetic crystalline particles (32) is ensured. The magnetic crystalline particles (32) are independent of one another. The magnetic interaction between adjacent magnetic crystalline particles (32) are completely cut. The magnetic domain of each magnetic crystalline particle (32) is established.