Nanoscale Magnet Composite for High-Performance Permanent Magnets

摘要

A nanoparticle is disclosed that has an elongated core extending from a first end to a second end along a longitudinal axis and formed of at least one magnetizable and/or magnetized material. A first cover is formed on a first end of the core, and a second cover is formed on a second end of the core, the first cover and the second cover formed from a magnetocrystalline anisotropic material different than the material of the core. The core is uncovered by the first and second covers along a non-zero longitudinal distance between the first and second covers. In this way, the material of the covers can be reduced in relation to the generated coercive force, which may allow for efficient and reduced-cost permanent magnets.